
The section of the Usenet Physics FAQ titled "Experimental Basis of Special Relativity" has been cited here many...

Dec3107 02:06 AM
jtbell

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41,917 
Before posting anything, please review the Physics Forums Global Guidelines.
If you are seeking help with a...

Feb2313 08:40 AM
ZapperZ

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42,286 

 
 
 
I am doing a research about the compact Milne Universe in two dimensions Using special relativity.
such that (t,θ)...

Aug2813 08:35 AM
hazha

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30 
In this source explaining how to derive the Schwarzchild metric, the person came up with an ansatz and worked from...

T 08:31 AM
Nugatory

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89 
I know that you're going to probably say that a frame of reference doesn't make sense for light, but I've uploaded a...

Feb513 09:38 PM
Drakkith

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For another BRS thread, I looked up some information at http://www.genealogy.ams.org/ and was completely sidetracked...

Mar110 05:00 PM
Chris Hillman

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136 
Hi,
I'm interested in trying to understand Einstein's field equations, I'm a physics student due to start an...

T 10:31 AM
stevendaryl

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146 
Although I can't nominate myself for a Nobel Prize, I was wondering I any distinguished scientist would oppose such a...

Feb1213 02:55 AM
kloptok

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152 
Depending on where I go to get a good understanding of the Lorentz transformations, I run into two formulas for time...

T 12:22 AM
Nugatory

2 
161 
Hi
I am in a debate with some creationists. They are claiming that the speed of light changes in strong...

T 10:56 AM
PeterDonis

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167 
I'll try rephrasing my question, as I do not wish to question the theory itself. Verily, verily, it would be...

Feb1613 04:19 PM
Didymus

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169 
This expression:
\Gammaavc\Gammacab
Can someone please show me how to multiply the two Christoffel symbol...

Aug1414 12:45 PM
HallsofIvy

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175 
After learning more about relativity, and the vast amount of knowledge that is on this forum, I would like to clear up...

Aug1714 08:28 PM
jbriggs444

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188 
What if Schwatzchild has made the same mistake as Newton?
( 1  2MG / c2 r ) dt
can be view as a binomial...

T 11:24 AM
PeterDonis

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190 
Dear all,
I was reading this...

Aug914 03:04 PM
dextercioby

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200 
In the Wiki article about the Vaidya metric :
http://en.wikipedia.org/wiki/Vaidya_metric
there is mention of a...

Aug1714 07:21 AM
George Jones

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208 
When you have a general coordinate chart on spacetime you have a lot of freedom to pick your coordinates, but you are...

Aug1214 07:03 PM
Fredrik

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210 
Question the thing in the region of space that cannot be seen from us because they recede faster than the speed of...

Aug1914 08:08 AM
phinds

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211 
when muons are created in the atmosphere and fall to earth the earth clock runs faster. Thus, the "slower" muon clock...

Aug414 10:08 PM
PAllen

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213 
I would appreciate it if some senior member would give me feedback about this result that I have been using in my...

T 07:43 AM
m4r35n357

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215 
This may be a stupid question, but have the various gravitational wave observatories around the world been tested by...

Jul3114 03:42 PM
PeterDonis

2 
220 
I'm looking for proof that Wolfgang Rindler coined the term Event Horizon. I believe that it was Rindler because...

Aug1914 03:34 AM
PhysicistMike

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220 
I know that the example of time dilation and length contraction due to Special Relativity is usually given as the...

Aug1914 05:06 AM
Nugatory

2 
221 
Hi,
On p.4 of "A First Course in General Relativity", Shutz says that we redefine the units of time so that the new...

T 03:20 PM
DaleSpam

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222 
From what I know, to get the reverse trace form of the Einstein field equations, you must multiply both sides by gab...

Aug1814 03:14 PM
pervect

3 
229 
I am somewhat distracted so this post will not be what it should, given that GAP is one of my interests.
For those...

Mar1110 05:17 PM
Chris Hillman

1 
231 
Hi, I'm trying to understand why the metric I've seen for AdS space,...

Jan2414 11:38 AM
copernicus1

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232 
On the spacetime manifold in general relativity, one chooses a basis at a point and express it by the partial...

May1714 02:59 PM
Matterwave

2 
233 
Recently read about a release from 2006 about an electromagnetic superconductor that generated a small gravity field...

Aug1514 06:42 PM
Fival

2 
234 
Hello,
Some knows how to Bondi deduce his radiating line element? I read some papers and there isn't any hint about...

May414 07:21 PM
btphysics

2 
236 
In General Relativity spacetime is described by a metric. The most common one is the Schwarzschild metric, valid at...

Aug1614 04:39 PM
rlshuler

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239 
This is about Hans Ohanian, "Einstein's E = mc2 mistakes," http://arxiv.org/abs/0805.1400 , a historical paper that...

Jan2314 06:03 PM
bcrowell

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243 
would time dilation occur if for example, i was making a hydrogen atom spin with the center of spin the atom? would...

May1914 03:40 PM
mfb

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245 
We know that distant galaxies (which are expanding) are sometimes expanding at rates that do not conform with our...

Aug114 08:22 AM
Drakkith

2 
250 
I've found the equations of motion for a charged test particle in the KerrNewman geometry from a number of sources. ...

Aug1514 01:44 PM
michael879

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250 
I'm reading an old article published by Kaluza "On the Unity Problem of Physics" where i encounter an expression for...

May1514 07:58 AM
Bill_K

3 
251 
In classical mechanics we talk about homogeneous and inhomogeneous gravitational fields.
Do we do this with...

Feb514 09:35 AM
DaleSpam

1 
252 
In Bianchi IX, the isometry group is the group that admits the same lie algebra as the lie algebra of SO(3). What...

May1614 04:34 AM
befj0001

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252 
Hello,
I am working on a project but I stuck at a point. I found that divergence of two objects are equal...

Mar1214 05:17 AM
crimsonidol

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256 
I started attending to GR lectures, and there we referred to an intelingent beetle living on a 2D flat space and...

Apr1014 10:54 AM
ChrisVer

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258 