Komornik–Loreti constant: Difference between revisions

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{{Use dmy dates|date=July 2013}}
{{About|the gravitational analog of electromagnetism as a whole|the specific gravitational analog of magnetism|frame-dragging}}
[[File:Gravity Probe B Confirms the Existence of Gravitomagnetism.jpg|thumb|400 px|Diagram regarding the confirmation of gravitomagnetism by [[Gravity Probe B]]]]


'''Gravitoelectromagnetism''', abbreviated '''GEM''', refers to a set of [[Analogy|formal analogies]] between the equations for [[electromagnetism]] and [[General relativity|relativistic]] [[gravitation]]; specifically: between [[Maxwell's field equations]] and an approximation, valid under certain conditions, to the [[Einstein field equations]] for [[general relativity]]. '''Gravitomagnetism''' is a widely used term referring specifically to the kinetic effects of gravity, in analogy to the magnetic effects of moving electric charge. The most common version of GEM is valid only far from isolated sources, and for slowly moving [[test particles]].


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The analogy and equations differing only by some small factors were first published in 1893, before general relativity, by [[Oliver Heaviside]] as a separate theory expanding Newton's law.<ref>
{{Cite journal
|author=[[Oliver Heaviside|O. Heaviside]]
|title=A gravitational and electromagnetic analogy
|url=http://serg.fedosin.ru/Heavisid.htm <!--url=http://www.as.wvu.edu/phys/OJ/Heavisid.htm does not allow general access-->
|journal=The Electrician
|volume=31 |issue= |pages=81–82
|year=1893
|doi=
}}</ref>
 
==Background==
 
  {{multiple image
  | left
  | footer    = Physical analogues of fields<ref>Gravitation and Inertia, I. Ciufolini and J.A. Wheeler, Princeton Physics Series, 1995, ISBN 0-691-03323-4</ref>
  | width1    = 190
  | image1    = Gravitomagnetic field due to angular momentum.svg
  | caption1  = '''Gravitomagnetism''' – Gravitomagnetic field '''H''' due to (total) [[angular momentum]] '''J'''.
  | width2    = 190
  | image2    = Magnetic field due to dipole moment.svg
  | caption2  = '''[[Electromagnetism]]''' – [[Magnetic field]] '''B''' due to a [[Magnetic moment|dipole moment]] '''m'''...
  | width3    = 165
  | image3    = Magnetic field due to current.svg
  | caption3  = ...or equivalently [[Electric current|current]] ''I'', same field profile, and field generation due to rotation.
  | width4    = 160
  | image4    = Rotational fluid drag of a solid sphere immersed in fluid.svg
  | caption4  = '''[[Fluid mechanics]]''' – Rotational [[Drag (physics)|fluid drag]] of a solid sphere immersed in fluid, analogous directions and senses of rotation as magnetism, analogous interaction to frame dragging for the  gravitomagnetic interaction.
  }}
 
This approximate reformulation of [[gravitation]] as described by [[general relativity]] in the weak field limit makes an apparent field appear in a [[frame of reference]] different from that of a freely moving inertial body. This apparent field may be described by two components that act respectively like the electric and magnetic fields of electromagnetism, and by analogy these are called  the ''gravitoelectric'' and  ''gravitomagnetic'' fields, since these arise in the same way around a mass that a moving electric charge is the source of electric and magnetic fields. The main consequence of the ''gravitomagnetic'' field, or velocity-dependent acceleration, is that a moving object near a rotating massive object will experience acceleration not predicted by a purely Newtonian (gravitoelectric) gravity field. More subtle predictions, such as induced rotation of a falling object and precession of a spinning object are among the last basic predictions of general relativity to be directly tested.
 
Indirect validations of gravitomagnetic effects have been derived from analyses of [[relativistic jet]]s. [[Roger Penrose]] had proposed a [[frame dragging]] mechanism for extracting energy and momentum from rotating [[black holes]].<ref>
{{Cite journal
|author=R. Penrose |authorlink=Roger Penrose
|title=Gravitational collapse: The role of general relativity
|journal=Rivista de Nuovo Cimento
|volume=Numero Speciale 1 |pages=252–276
|year=1969
|doi=
|bibcode=1969NCimR...1..252P }}</ref>  [[Reva Kay Williams]], University of Florida, developed a rigorous proof that validated Penrose's mechanism.<ref>
{{Cite journal
|author=R.K. Williams
|title=Extracting x rays, Ύ rays, and relativistic e<sup>−</sup>e<sup>+</sup> pairs from supermassive Kerr black holes using the Penrose mechanism
|journal=Physical Review
|volume=51 |issue=10 |pages=5387–5427
|year=1995
|doi=10.1103/PhysRevD.51.5387
|bibcode=1995PhRvD..51.5387W
}}</ref> Her model showed how the [[Lense–Thirring precession|Lense–Thirring effect]] could account for the observed high energies and luminosities of [[quasar]]s and [[Active galactic nucleus|active galactic nuclei]]; the collimated jets about their polar axis; and the asymmetrical jets (relative to the orbital plane).<ref>
{{Cite journal
|author=R.K. Williams
|title=Collimated escaping vortical polar e<sup>−</sup>e<sup>+</sup> jets intrinsically produced by rotating black holes and Penrose processes
|journal=The Astrophysical Journal
|volume=611 |issue= 2|pages=952–963
|year=2004
|doi=10.1086/422304
|bibcode=2004ApJ...611..952W
|arxiv=astro-ph/0404135 }}</ref> All of those observed properties could be explained in terms of gravitomagnetic effects.<ref>
{{cite conference
|author=R.K. Williams
|title=Gravitomagnetic field and Penrose scattering processes
|booktitle=Annals of the New York Academy of Sciences
|volume=1045 |pages=232–245
|year=2005
|doi=
|isbn=
}}</ref> Williams' application of Penrose's mechanism can be applied to black holes of any size.<ref>
{{cite conference
|author=R.K. Williams
|year=2001
|title=Collimated energy–momentum extraction from rotating black holes in quasars and microquasars using the Penrose mechanism
|booktitle=AIP Conference Proceedings
|volume=586 |pages=448–453
|arxiv=astro-ph/0111161
|doi=
|isbn=
}}</ref> Relativistic jets can serve as the largest and brightest form of validations for gravitomagnetism.
 
A group at [[Stanford University]] is currently analyzing data from the first direct test of GEM, the [[Gravity Probe B]] satellite experiment, to see if they are consistent with gravitomagnetism. The [[Apache Point Observatory Lunar Laser-ranging Operation]] also plans to observe gravitomagnetism effects.
 
==Equations==
{{disputed section|date=May 2013}}
According to [[general relativity]], the [[gravitational field]] produced by a rotating object (or any rotating mass–energy) can, in a particular limiting case, be described by equations that have the same form as in [[classical electromagnetism]]. Starting from the basic equation of general relativity, the [[Einstein field equation]], and assuming a weak [[gravitational field]] or reasonably [[flat spacetime]], the gravitational analogs to [[Maxwell's equations]] for [[electromagnetism]], called the "GEM equations", can be derived. GEM equations compared to Maxwell's equations in [[SI]] units are:<ref>
{{cite journal
|author=B. Mashhoon, F. Gronwald, H.I.M. Lichtenegger
|title=Gravitomagnetism and the Clock Effect
|year=1999
|pages=83–108
|volume=562
|journal=Lect.Notes Phys.
|arxiv=gr-qc/9912027
|bibcode = 2001LNP...562...83M }}</ref><ref>
{{Cite journal
|author=S.J. Clark, R.W. Tucker
|title=Gauge symmetry and gravito-electromagnetism
|journal=Classical and Quantum Gravity
|volume=17 |issue= 19|pages=4125–4157
|year=2000
|doi=10.1088/0264-9381/17/19/311
|arxiv = gr-qc/0003115 |bibcode = 2000CQGra..17.4125C }}</ref>
 
{| class="wikitable" border="1" cellpadding="8" cellspacing="0"
|-
!GEM equations
!Maxwell's equations
|-
|<math> \nabla \cdot \mathbf{E}_\text{g} = -4 \pi G \rho_\text{g} \ </math>
|<math> \nabla \cdot \mathbf{E} =  \frac{\rho}{\epsilon_0} </math>
|-
|<math> \nabla \cdot \mathbf{B}_\text{g} = 0 \ </math>
|<math> \nabla \cdot \mathbf{B} = 0 \ </math>
|-
|<math> \nabla \times \mathbf{E}_\text{g} = -\frac{\partial \mathbf{B}_\text{g} } {\partial t} \ </math>
|<math> \nabla \times \mathbf{E} = -\frac{\partial \mathbf{B} } {\partial t} \ </math>
|-
|<math> \nabla \times \mathbf{B}_\text{g} = 4 \left( -\frac{4 \pi G}{c^2} \mathbf{J}_\text{g} + \frac{1}{c^2} \frac{\partial \mathbf{E}_\text{g}} {\partial t} \right) </math>
|<math> \nabla \times \mathbf{B} = \frac{1}{\epsilon_0 c^2} \mathbf{J} + \frac{1}{c^2} \frac{\partial \mathbf{E}} {\partial t} </math>
|}
where:
* '''E'''<sub>g</sub> is the [[gravitational field|static gravitational field]] (conventional [[gravity]], also called ''gravitoelectric'' in analogous usage) in m⋅s<sup>−2</sup>;
* '''E''' is the [[electric field]];
* '''B'''<sub>g</sub> is the gravitomagnetic field in s<sup>−1</sup>;
* '''B''' is the [[magnetic field]];
* ''ρ''<sub>g</sub> is [[density|mass density]] in kg⋅m<sup>−3</sup>;
* ''ρ'' is [[charge density]]:
* '''J'''<sub>g</sub> is mass current density or [[mass flux]] ('''J'''<sub>g</sub> = ''ρ<sub>g</sub>'''''v'''<sub>ρ</sub>, where '''v'''<sub>ρ</sub> is the [[velocity]] of the mass flow generating the gravitomagnetic field) in kg⋅m<sup>−2</sup>⋅s<sup>−1</sup>;
* '''J''' is electric [[current density]];
* ''G'' is the [[gravitational constant]] in m<sup>3</sup>⋅kg<sup>−1</sup>⋅s<sup>−2</sup>;
* ε<sub>0</sub> is the [[vacuum permittivity]];
* ''c'' is the [[Speed of gravity|speed of propagation of gravity]] (which is equal to the [[speed of light]] according to [[general relativity]]) in m⋅s<sup>−1</sup>.
 
===Lorentz force===
For a test particle whose mass ''m'' is "small", in a stationary system, the net (Lorentz) force acting on it due to a GEM field is described by the following GEM analog to the [[Lorentz force]] equation:
 
{| class="wikitable" border="1" cellpadding="8" cellspacing="0"
|-
!GEM equation
!EM equation
|-
|<math>\mathbf{F} = m \gamma(\mathbf{v}) \left( \mathbf{E}_\text{g} + \mathbf{v} \times \mathbf{B}_\text{g} \right) </math>
|<math>\mathbf{F} = q \left( \mathbf{E} + \mathbf{v} \times \mathbf{B} \right) </math>
|-
|}
 
where:
* '''v''' is the [[velocity]] of the test particle;
* ''m'' is the [[rest mass]] of the [[test particle]];
* ''m''γ('''v''') is the [[relativistic mass]] of the [[test particle]];
* γ('''v''') = (1 − '''v'''∙'''v'''/''c''<sup>2</sup>)<sup>−1/2</sup> is the [[Lorentz factor]];
* ''q'' is the [[electric charge]] of the [[test particle]].
 
The acceleration of a [[free fall]]ing test particle is:
:<math> \mathbf{a} = \mathbf{E}_\text{g} + \mathbf{v} \times \mathbf{B}_\text{g} - \frac{ ( \mathbf{E}_\text{g} \cdot \mathbf{v} ) \mathbf{v} }{c^2} \,,</math>
where the extra term arises from [[derivative|differentiating]] γ, see [[Relativistic mechanics#Force|section Force in Relativistic mechanics]].
<!-- comment out Poynting vector since it is not within the range of valid approximation, see talk page
===Poynting vector===
The GEM Poynting vector compared to the electromagnetic [[Poynting vector]] is given by<ref>{{cite journal
|author=B. Mashhoon
|title=Gravitoelectromagnetism: A Brief Review
|year=2008
|arxiv=gr-qc/0311030 |bibcode = 2003gr.qc....11030M }}</ref>
{| class="wikitable" border="1" cellpadding="8" cellspacing="0"
|-
!GEM equation
!EM equation
|-
|<math>\mathcal{S}_\text{g} = -\frac{c^2}{4 \pi G} \mathbf{E}_\text{g} \times 4 \mathbf{B}_\text{g} </math>
|<math>\mathcal{S} = c^2 \varepsilon_0 \mathbf{E} \times \mathbf{B} </math>
|-
|}
-->
 
===Scaling of fields===
 
The literature does not adopt a consistent scaling for the gravitoelectric and gravitomagnetic fields, making comparison tricky. For example, to obtain agreement with Mashhoon's writings, all instances of '''B'''<sub>g</sub> in the GEM equations must be multiplied by −1/2''c'' and '''E'''<sub>g</sub> by −1.  These factors variously modify the analogues of the equations for the Lorentz force<!-- and the Poynting vector-->.  No scaling choice allows all the GEM and EM equations to be perfectly analogous. The discrepancy in the factors arises because the source of the gravitational field is the second order [[stress–energy tensor]], as opposed to the source of the electromagnetic field being the first order [[four-current]] tensor. This difference becomes clearer when one compares non-invariance of [[relativistic mass]] to electric [[charge invariance]]. This can be traced back to the [[spin-2]] character of the gravitational field, in contrast to the electromagnetism being a [[spin-1]] field.<ref>
{{cite journal
|author=B. Mashhoon
|title=Gravitoelectromagnetism
|year=2000
|arxiv=gr-qc/0011014 |bibcode = 2001rfg..conf..121M |doi = 10.1142/9789812810021_0009 }}</ref> (See [[relativistic wave equations]] for more on "spin-1" and "spin-2" fields).
 
===In Planck units===
From comparison of GEM equations and Maxwell's equations it is obvious that −1/(4π''G'') is the gravitational analog of [[vacuum permittivity]] ''ε''<sub>0</sub>. Adopting [[Planck units]] normalizes ''G'', ''c'' and 1/(4π''ε''<sub>0</sub>) to 1, thereby eliminating these constants from both sets of equations. The two sets of equations then become identical but for the minus sign preceding 4π in the GEM equations and a factor of four in Ampere's law. These minus signs stem from an essential difference between [[gravity]] and [[electromagnetism]]: [[electrostatic]] charges of identical sign repel each other, while masses attract each other. Hence the GEM equations are nearly [[Maxwell's equations]] with [[mass]] (or [[mass density]]) substituting for [[charge (physics)|charge]] (or [[charge density]]), and −''G'' replacing the [[Coulomb force constant]] 1/(4π''ε''<sub>0</sub>).
<!-- needs factor of four
The following table summarizes the results thus far:
 
{| class="wikitable"
|- align="center" style="background-color: #cccccc;"
|-
|'''Common Structure of the Maxwell and''' <br>
'''GEM Equations Given [[Planck units]].'''
|-
| <math>\nabla \cdot \mathbf{E} =  \iota 4\pi\rho </math>
 
<math>\nabla \cdot \mathbf{B} = 0</math>
 
<math>\nabla \times \mathbf{E} = -\partial \mathbf{B}/ \partial t</math>
 
<math>\nabla \times \mathbf{B} =  \iota 4\pi\mathbf{J} + \partial \mathbf{E}/ \partial t</math>
 
''ι'' = +1 (Maxwell) or −1 (GEM).
|}
-->
4π appears in both the GEM and Maxwell equations, because [[Planck units]] normalize ''G'' and 1/(4π''ε''<sub>0</sub>) to 1, and not 4π''G'' and 1/''ε''<sub>0</sub>.
 
==Higher-order effects==
Some higher-order gravitomagnetic effects can reproduce effects reminiscent of the interactions of more conventional polarized charges. For instance, if two wheels are spun on a common axis, the mutual gravitational attraction between the two wheels will be greater if they spin in opposite directions than in the same direction. This can be expressed as an attractive or repulsive gravitomagnetic component.
 
Gravitomagnetic arguments also predict that a flexible or fluid [[toroid]]al mass undergoing [[semi-minor axis|minor axis]] rotational acceleration (accelerating "smoke ring" rotation) will tend to pull matter through the throat (a case of rotational frame dragging, acting through the throat). In theory, this configuration might be used for accelerating objects (through the throat) without such objects experiencing any [[g-force]]s.<ref>
{{Cite journal
|author=R.L. Forward
|title=Guidelines to Antigravity
|journal=American Journal of Physics
|volume=31 |issue=3 |pages=166–170
|year=1963
|doi=10.1119/1.1969340
|bibcode = 1963AmJPh..31..166F }}</ref>
 
Consider a toroidal mass with two degrees of rotation (both major axis and minor-axis spin, both turning inside out and revolving). This represents a "special case" in which gravitomagnetic effects generate a [[Chirality (physics)|chiral]] corkscrew-like gravitational field around the object. The reaction forces to dragging at the inner and outer equators would normally be expected to be equal and opposite in magnitude and direction respectively in the simpler case involving only minor-axis spin. When ''both'' rotations are applied simultaneously, these two sets of reaction forces can be said to occur at different depths in a radial [[Coriolis field]] that extends across the rotating torus, making it more difficult to establish that cancellation is complete.{{Citation needed|date=May 2012}}
 
Modelling this complex behaviour as a curved spacetime problem has yet to be done and is believed to be very difficult.{{Citation needed|date=May 2012}}
 
==Gravitomagnetic fields of astronomical objects==
{{disputed section|date=May 2013}}
{{unreferenced section | date=May 2013}}
The formula for the gravitomagnetic field '''B'''<sub>g</sub> near a rotating body can be derived from the GEM equations. It is given by:{{Citation needed|date=May 2012}}
 
:<math>\mathbf{B}_\text{g} = \frac{G }{2 c^2} \frac{\mathbf{L} - 3(\mathbf{L} \cdot \mathbf{r}/r) \mathbf{r}/r}{r^3},</math>
where '''L''' is the [[angular momentum]] of the body. At the equatorial plane, '''r''' and '''L''' are perpendicular, so their [[dot product]] vanishes, and this formula reduces to:
 
:<math>\mathbf{B}_\text{g} = \frac{G }{2 c^2} \frac{\mathbf{L}}{r^3},</math>
 
The magnitude of angular momentum of a homogeneous ball-shaped body is:
 
:<math> L=I_\text{ball} \omega= \frac{2 m r^2}{5} \frac{2 \pi}{T} </math>
 
where:
*<math>I_\text{ball} = \frac{2 m r^2}{5}</math> is the [[moment of inertia]] of a ball-shaped body (see: [[list of moments of inertia]]);
*<math> \omega \ </math> is the [[angular velocity]];
*''m'' is the [[mass]];
*''r'' is the [[radius]];
*''T'' is the rotational period.
 
===Earth===
Therefore, the magnitude of [[Earth]]'s gravitomagnetic field at its [[equator]] is:
 
:<math>B_\text{g, Earth} = \frac{G }{5 c^2} \frac{m}{r} \frac{2 \pi}{T} = \frac{2 \pi r g}{5c^2 T},</math>
 
where <math> g = G \frac{m}{r^2} </math> is [[Earth's gravity]]. The field direction coincides with the angular moment direction, i.e. north.
 
From this calculation it follows that Earth's equatorial gravitomagnetic field is about {{val|1.012|e=-14}}&nbsp;Hz,<ref>http://www.google.com/search?q=2*pi*radius+of+Earth*earth+gravity%2F(5*c^2*day)</ref> or {{val|3.1|e=-7}} in units of [[standard gravity]] (9.81&nbsp;m/s<sup>2</sup>) divided by the speed of light. Such a field is extremely weak and requires extremely sensitive measurements to be detected. One experiment to measure such field was the [[Gravity Probe B]] mission.
 
===Pulsar===
If the preceding formula is used with the second fastest-spinning pulsar known, [[PSR J1748-2446ad]] (which rotates 716 times per second), assuming a radius of 16&nbsp;km, and two solar masses, then
 
:<math>B_\text{g}  = \frac{2 \pi G m}{5rc^2 T}</math>
 
equals about 166&nbsp;Hz. This would be easy to notice. However, the pulsar is spinning at a quarter of the speed of light at the equator, and its radius is only three times more than its [[Schwarzschild radius]]. When such fast motion and such strong gravitational fields exist in a system, the simplified approach of separating gravitomagnetic and gravitoelectric forces can be applied only as a very rough approximation.
 
== Lack of invariance ==
<!-- Commented out until the reference has been reviewed and approved so that it becomes a reliable source. Also this version would need to be described in the article.
In 2013 there appeared an article <ref>  Piotr Ogonowski, Piotr Skindzier, Maxwell-like picture of General Relativity and its Planck limit, arXiv:1301.2758, http://arxiv.org/abs/1301.2758</ref> that shows, there exists Lorentz invariant version of GEM equations that reproduce General Relativity formula, what opens new areas for research.{{dubious|date=August 2013}}
-->
While Maxwell's equations are invariant under [[Lorentz transformation#Lorentz transformation of the electromagnetic field|Lorentz transformation]]s, the GEM equations were not.  The fact that &rho;<sub>g</sub> and ''j''<sub>g</sub> do not form a [[four-vector]] (instead they are merely a part of the [[stress–energy tensor]]) is the basis of this problem.
 
Although GEM may hold approximately in two different reference frames connected by a [[Lorentz boost]], there is no way to calculate the GEM variables of one such frame from the GEM variables of the other, unlike the situation with the variables of electromagnetism. Indeed, their predictions (about what motion is free fall) will probably conflict with each other.
 
Note that the GEM equations are invariant under translations and spatial rotations, just not under boosts and more general curvilinear transformations. Maxwell's equations can be formulated in a way that makes them invariant under all of these coordinate transformations.
 
==See also==
* [[Linearized gravity]]
* [[Geodetic effect]]
* [[Gravitational radiation]]
* [[Gravity Probe B]]
* [[Frame-dragging]]
* [[Kaluza–Klein theory]]
* [[Speed of gravity#Electrodynamical analogies]]
 
==References==
{{Reflist|2}}
 
==Further reading==
*{{Cite journal
|author=S.J. Clark, R.W. Tucker
|title=Gauge symmetry and gravito-electromagnetism
|journal=Classical and Quantum Gravity
|volume=17 |issue= 19|pages=4125–4157
|year=2000
|doi=10.1088/0264-9381/17/19/311
|arxiv = gr-qc/0003115 |bibcode = 2000CQGra..17.4125C }}
*{{Cite journal
|author=R.L. Forward
|title=Guidelines to Antigravity
|journal=American Journal of Physics
|volume=31 |issue=3 |pages=166–170
|year=1963
|doi=10.1119/1.1969340
|bibcode = 1963AmJPh..31..166F }}
*{{Cite book
|author=L. Iorio (ed.)
|title=Measuring Gravitomagnetism: A Challenging Enterprise
|publisher=Nova
|isbn=1-60021-002-3
|year=2007
}}
*{{Cite journal
|author=R.T. Jantzen, P. Carini, D. Bini
|title=The Many Faces of Gravitoelectromagnetism
|journal=Annals of Physics
|year=1992
|volume=215 |issue= |pages=1–50
|doi=10.1016/0003-4916(92)90297-Y
|arxiv=gr-qc/0106043
|bibcode = 1992AnPhy.215....1J }}
*{{Cite book
|last=[[Oleg D. Jefimenko|O.D. Jefimenko]]
|title=Causality, electromagnetic induction, and gravitation : a different approach to the theory of electromagnetic and gravitational fields
|publisher=Electret Scientific
|year=1992
|isbn=0-917406-09-5
}}
*{{Cite book
|last=[[Oleg D. Jefimenko|O.D. Jefimenko]]
|title=Gravitation and Cogravitation
|publisher=Electret Scientific
|year=2006
|isbn=0-917406-15-X
}}
*{{Cite arxiv
|author=B. Mashhoon
|title=Gravitoelectromagnetism
|class=gr-qc
|eprint=gr-qc/0011014
|year=2000
}}
*{{Cite arxiv
|author=B. Mashhoon
|title=Gravitoelectromagnetism: a Brief Review
|class=gr-qc
|eprint=gr-qc/0311030
|year=2003
}} in {{Cite book
|author=L. Iorio (ed.)
|title=Measuring Gravitomagnetism: A Challenging Enterprise
|pages=29–39
|publisher=Nova
|isbn=1-60021-002-3
|year=2007
}}
*{{Cite journal
|author=M. Tajmar, C.J. de Matos
|title=Gravitomagnetic Barnett Effect
|journal=Indian Journal of Physics B
|volume=75 |pages=459–461
|year=2001
|doi=
|arxiv=gr-qc/0012091|bibcode = 2000gr.qc....12091D }}
*{{Cite book
|author=[[John Archibald Wheeler|J.A. Wheeler]]
|chapter=Gravity's next prize: Gravitomagnetism
|title=A journey into gravity and spacetime
|pages=232–233
|publisher=Scientific American Library
|year=1990
|isbn=0-7167-5016-3
}}
*{{cite journal
|author=L. Filipe Costa, Carlos A. R. Herdeiro
|title=A gravito-electromagnetic analogy based on tidal tensors
|year=2007
|doi=10.1103/PhysRevD.78.024021
|journal=Physical Review D
|volume=78
|issue=2
|arxiv=gr-qc/0612140
|bibcode = 2008PhRvD..78b4021C }}
 
==External links==
* [http://einstein.stanford.edu/ Gravity Probe B: Testing Einstein's Universe]
* [http://www.esa.int/SPECIALS/GSP/SEM0L6OVGJE_0.html Gyroscopic Superconducting Gravitomagnetic Effects] news on tentative result of European Space Agency ([[esa]]) research
* [http://www.nasa.gov/vision/universe/solarsystem/19apr_gravitomagnetism.html In Search of gravitomagnetism], NASA, 20 April 2004.
* [http://www.physorg.com/news12054.html Gravitomagnetic London Moment – New test of General Relativity?]
* [http://www.arxiv.org/abs/gr-qc/0610015 Measurement of Gravitomagnetic and Acceleration Fields Around Rotating Superconductors] M. Tajmar, et al., 17 October 2006.
* [http://space.newscientist.com/article/mg19325874.800-loner-stakes-claim-to-gravity-prize.html Test of the Lense–Thirring effect with the MGS Mars probe], ''[[New Scientist]]'', January 2007.
 
{{theories of gravitation}}
 
[[Category:General relativity]]
[[Category:Effects of gravitation]]
[[Category:Tests of general relativity]]

Latest revision as of 17:49, 28 December 2013

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Diagram regarding the confirmation of gravitomagnetism by Gravity Probe B

Gravitoelectromagnetism, abbreviated GEM, refers to a set of formal analogies between the equations for electromagnetism and relativistic gravitation; specifically: between Maxwell's field equations and an approximation, valid under certain conditions, to the Einstein field equations for general relativity. Gravitomagnetism is a widely used term referring specifically to the kinetic effects of gravity, in analogy to the magnetic effects of moving electric charge. The most common version of GEM is valid only far from isolated sources, and for slowly moving test particles.

The analogy and equations differing only by some small factors were first published in 1893, before general relativity, by Oliver Heaviside as a separate theory expanding Newton's law.[1]

Background

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This approximate reformulation of gravitation as described by general relativity in the weak field limit makes an apparent field appear in a frame of reference different from that of a freely moving inertial body. This apparent field may be described by two components that act respectively like the electric and magnetic fields of electromagnetism, and by analogy these are called the gravitoelectric and gravitomagnetic fields, since these arise in the same way around a mass that a moving electric charge is the source of electric and magnetic fields. The main consequence of the gravitomagnetic field, or velocity-dependent acceleration, is that a moving object near a rotating massive object will experience acceleration not predicted by a purely Newtonian (gravitoelectric) gravity field. More subtle predictions, such as induced rotation of a falling object and precession of a spinning object are among the last basic predictions of general relativity to be directly tested.

Indirect validations of gravitomagnetic effects have been derived from analyses of relativistic jets. Roger Penrose had proposed a frame dragging mechanism for extracting energy and momentum from rotating black holes.[2] Reva Kay Williams, University of Florida, developed a rigorous proof that validated Penrose's mechanism.[3] Her model showed how the Lense–Thirring effect could account for the observed high energies and luminosities of quasars and active galactic nuclei; the collimated jets about their polar axis; and the asymmetrical jets (relative to the orbital plane).[4] All of those observed properties could be explained in terms of gravitomagnetic effects.[5] Williams' application of Penrose's mechanism can be applied to black holes of any size.[6] Relativistic jets can serve as the largest and brightest form of validations for gravitomagnetism.

A group at Stanford University is currently analyzing data from the first direct test of GEM, the Gravity Probe B satellite experiment, to see if they are consistent with gravitomagnetism. The Apache Point Observatory Lunar Laser-ranging Operation also plans to observe gravitomagnetism effects.

Equations

Template:Disputed section According to general relativity, the gravitational field produced by a rotating object (or any rotating mass–energy) can, in a particular limiting case, be described by equations that have the same form as in classical electromagnetism. Starting from the basic equation of general relativity, the Einstein field equation, and assuming a weak gravitational field or reasonably flat spacetime, the gravitational analogs to Maxwell's equations for electromagnetism, called the "GEM equations", can be derived. GEM equations compared to Maxwell's equations in SI units are:[7][8]

GEM equations Maxwell's equations
Eg=4πGρg E=ρϵ0
Bg=0 B=0
×Eg=Bgt ×E=Bt
×Bg=4(4πGc2Jg+1c2Egt) ×B=1ϵ0c2J+1c2Et

where:

Lorentz force

For a test particle whose mass m is "small", in a stationary system, the net (Lorentz) force acting on it due to a GEM field is described by the following GEM analog to the Lorentz force equation:

GEM equation EM equation
F=mγ(v)(Eg+v×Bg) F=q(E+v×B)

where:

The acceleration of a free falling test particle is:

a=Eg+v×Bg(Egv)vc2,

where the extra term arises from differentiating γ, see section Force in Relativistic mechanics.

Scaling of fields

The literature does not adopt a consistent scaling for the gravitoelectric and gravitomagnetic fields, making comparison tricky. For example, to obtain agreement with Mashhoon's writings, all instances of Bg in the GEM equations must be multiplied by −1/2c and Eg by −1. These factors variously modify the analogues of the equations for the Lorentz force. No scaling choice allows all the GEM and EM equations to be perfectly analogous. The discrepancy in the factors arises because the source of the gravitational field is the second order stress–energy tensor, as opposed to the source of the electromagnetic field being the first order four-current tensor. This difference becomes clearer when one compares non-invariance of relativistic mass to electric charge invariance. This can be traced back to the spin-2 character of the gravitational field, in contrast to the electromagnetism being a spin-1 field.[9] (See relativistic wave equations for more on "spin-1" and "spin-2" fields).

In Planck units

From comparison of GEM equations and Maxwell's equations it is obvious that −1/(4πG) is the gravitational analog of vacuum permittivity ε0. Adopting Planck units normalizes G, c and 1/(4πε0) to 1, thereby eliminating these constants from both sets of equations. The two sets of equations then become identical but for the minus sign preceding 4π in the GEM equations and a factor of four in Ampere's law. These minus signs stem from an essential difference between gravity and electromagnetism: electrostatic charges of identical sign repel each other, while masses attract each other. Hence the GEM equations are nearly Maxwell's equations with mass (or mass density) substituting for charge (or charge density), and −G replacing the Coulomb force constant 1/(4πε0). 4π appears in both the GEM and Maxwell equations, because Planck units normalize G and 1/(4πε0) to 1, and not 4πG and 1/ε0.

Higher-order effects

Some higher-order gravitomagnetic effects can reproduce effects reminiscent of the interactions of more conventional polarized charges. For instance, if two wheels are spun on a common axis, the mutual gravitational attraction between the two wheels will be greater if they spin in opposite directions than in the same direction. This can be expressed as an attractive or repulsive gravitomagnetic component.

Gravitomagnetic arguments also predict that a flexible or fluid toroidal mass undergoing minor axis rotational acceleration (accelerating "smoke ring" rotation) will tend to pull matter through the throat (a case of rotational frame dragging, acting through the throat). In theory, this configuration might be used for accelerating objects (through the throat) without such objects experiencing any g-forces.[10]

Consider a toroidal mass with two degrees of rotation (both major axis and minor-axis spin, both turning inside out and revolving). This represents a "special case" in which gravitomagnetic effects generate a chiral corkscrew-like gravitational field around the object. The reaction forces to dragging at the inner and outer equators would normally be expected to be equal and opposite in magnitude and direction respectively in the simpler case involving only minor-axis spin. When both rotations are applied simultaneously, these two sets of reaction forces can be said to occur at different depths in a radial Coriolis field that extends across the rotating torus, making it more difficult to establish that cancellation is complete.Potter or Ceramic Artist Truman Bedell from Rexton, has interests which include ceramics, best property developers in singapore developers in singapore and scrabble. Was especially enthused after visiting Alejandro de Humboldt National Park.

Modelling this complex behaviour as a curved spacetime problem has yet to be done and is believed to be very difficult.Potter or Ceramic Artist Truman Bedell from Rexton, has interests which include ceramics, best property developers in singapore developers in singapore and scrabble. Was especially enthused after visiting Alejandro de Humboldt National Park.

Gravitomagnetic fields of astronomical objects

Template:Disputed section Before you choose any particular company it is vital to understand in full how the different plans can vary. There is no other better method than to create a message board so that people can relax and "chill" on your website and check out your articles more. You should read the HostGator review, even before registering with a web hosting company. but Hostgator in addition considers the surroundings. You can even use a Hostgator reseller coupon for unlimited web hosting at HostGator! Most of individuals by no means go for yearly subscription and choose month to month subscription. Several users commented that this was the deciding factor in picking HostGator but in any case there is a 45 day Money Back Guarantee and there is no contract so you can cancel at any time. GatorBill is able to send you an email notice about the new invoice. In certain cases a dedicated server can offer less overhead and a bigger revenue in investments. With the plan come a Free Billing Executive, Free sellers account and Free Hosting Templates.



This is one of the only things that require you to spend a little money to make money. Just go make an account, get a paypal account, and start selling. To go one step beyond just affiliating products and services is to create your own and sell it through your blog. Not great if you really enjoy trying out all the themes. Talking in real time having a real person causes it to be personal helping me personally to sort out how to proceed. The first step I took was search for a discount code, as I did with HostGator. Using a HostGator coupon is a beneficial method to get started. As long as the necessities are able to preserve the horizontal functionality of your site, you would pretty much be fine. The formula for the gravitomagnetic field Bg near a rotating body can be derived from the GEM equations. It is given by:Potter or Ceramic Artist Truman Bedell from Rexton, has interests which include ceramics, best property developers in singapore developers in singapore and scrabble. Was especially enthused after visiting Alejandro de Humboldt National Park.

Bg=G2c2L3(Lr/r)r/rr3,

where L is the angular momentum of the body. At the equatorial plane, r and L are perpendicular, so their dot product vanishes, and this formula reduces to:

Bg=G2c2Lr3,

The magnitude of angular momentum of a homogeneous ball-shaped body is:

L=Iballω=2mr252πT

where:

Earth

Therefore, the magnitude of Earth's gravitomagnetic field at its equator is:

Bg, Earth=G5c2mr2πT=2πrg5c2T,

where g=Gmr2 is Earth's gravity. The field direction coincides with the angular moment direction, i.e. north.

From this calculation it follows that Earth's equatorial gravitomagnetic field is about Template:Val Hz,[11] or Template:Val in units of standard gravity (9.81 m/s2) divided by the speed of light. Such a field is extremely weak and requires extremely sensitive measurements to be detected. One experiment to measure such field was the Gravity Probe B mission.

Pulsar

If the preceding formula is used with the second fastest-spinning pulsar known, PSR J1748-2446ad (which rotates 716 times per second), assuming a radius of 16 km, and two solar masses, then

Bg=2πGm5rc2T

equals about 166 Hz. This would be easy to notice. However, the pulsar is spinning at a quarter of the speed of light at the equator, and its radius is only three times more than its Schwarzschild radius. When such fast motion and such strong gravitational fields exist in a system, the simplified approach of separating gravitomagnetic and gravitoelectric forces can be applied only as a very rough approximation.

Lack of invariance

While Maxwell's equations are invariant under Lorentz transformations, the GEM equations were not. The fact that ρg and jg do not form a four-vector (instead they are merely a part of the stress–energy tensor) is the basis of this problem.

Although GEM may hold approximately in two different reference frames connected by a Lorentz boost, there is no way to calculate the GEM variables of one such frame from the GEM variables of the other, unlike the situation with the variables of electromagnetism. Indeed, their predictions (about what motion is free fall) will probably conflict with each other.

Note that the GEM equations are invariant under translations and spatial rotations, just not under boosts and more general curvilinear transformations. Maxwell's equations can be formulated in a way that makes them invariant under all of these coordinate transformations.

See also

References

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Further reading

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    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

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  • One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

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    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

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    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

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  • 20 year-old Real Estate Agent Rusty from Saint-Paul, has hobbies and interests which includes monopoly, property developers in singapore and poker. Will soon undertake a contiki trip that may include going to the Lower Valley of the Omo.

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  • One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

    In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

    There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang
  • 20 year-old Real Estate Agent Rusty from Saint-Paul, has hobbies and interests which includes monopoly, property developers in singapore and poker. Will soon undertake a contiki trip that may include going to the Lower Valley of the Omo.

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  • 20 year-old Real Estate Agent Rusty from Saint-Paul, has hobbies and interests which includes monopoly, property developers in singapore and poker. Will soon undertake a contiki trip that may include going to the Lower Valley of the Omo.

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  • Template:Cite arxiv
  • Template:Cite arxiv in 20 year-old Real Estate Agent Rusty from Saint-Paul, has hobbies and interests which includes monopoly, property developers in singapore and poker. Will soon undertake a contiki trip that may include going to the Lower Valley of the Omo.

    My blog: http://www.primaboinca.com/view_profile.php?userid=5889534
  • One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

    In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

    There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang
  • 20 year-old Real Estate Agent Rusty from Saint-Paul, has hobbies and interests which includes monopoly, property developers in singapore and poker. Will soon undertake a contiki trip that may include going to the Lower Valley of the Omo.

    My blog: http://www.primaboinca.com/view_profile.php?userid=5889534
  • One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

    In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

    There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang

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  1. One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

    In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

    There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang
  2. One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

    In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

    There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang
  3. One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

    In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

    There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang
  4. One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

    In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

    There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang
  5. 55 years old Systems Administrator Antony from Clarence Creek, really loves learning, PC Software and aerobics. Likes to travel and was inspired after making a journey to Historic Ensemble of the Potala Palace.

    You can view that web-site... ccleaner free download
  6. 55 years old Systems Administrator Antony from Clarence Creek, really loves learning, PC Software and aerobics. Likes to travel and was inspired after making a journey to Historic Ensemble of the Potala Palace.

    You can view that web-site... ccleaner free download
  7. One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

    In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

    There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang
  8. One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

    In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

    There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang
  9. One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

    In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

    There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang
  10. One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

    In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

    There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang
  11. http://www.google.com/search?q=2*pi*radius+of+Earth*earth+gravity%2F(5*c^2*day)