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Feb2313 08:40 AM
ZapperZ

1 
41,496 
The section of the Usenet Physics FAQ titled "Experimental Basis of Special Relativity" has been cited here many...

Dec3107 02:06 AM
jtbell

0 
41,122 
Hi,
I'm interested in what people think of Dennis Sciama's 1953 paper on the origin of inertia in which he shows...

Feb212 05:11 PM
PAllen

5 
2,083 
Two individuals A and B are traveling through space at a velocity in the "x" direction at and are next to each other...

Mar2812 04:56 PM
GeorgeDishman

17 
2,083 
Hi,
I am doing exercises regarding relativity. I know how to calculate relative speed in one dimension, but I have...

Aug1304 06:25 PM
pervect

11 
2,082 
Please help me in the folowing problem:
It is well known that the radar echo (police radar) establishes a...

Feb1807 05:10 AM
bernhard.rothenstein

12 
2,081 
I believe the experiment proves nothing and the comeout means nothing
the experiment similars to this:
in...

Aug1908 04:30 AM
yeti1112007

11 
2,081 
If two objects, let's say two pool balls (or giant balls of neutronium for that matter), are placed in a closed...

Sep1108 09:20 PM
MeJennifer

21 
2,081 
Probably there's a simple answer for the following question. What prevents a neutral particle falling into a black...

Apr610 09:57 AM
starthaus

18 
2,081 
What is the rationale for the sign convention in the spacetime 4vector? How is it related to the sign convention in...

May108 08:51 AM
pmb_phy

9 
2,080 
I understand that magnetic force is a relativistic effect of electric force.
Is there a force which is the...

Jul308 12:30 PM
rbj

12 
2,080 
How many numbers does it take to describe a point in space in GR?

Jan1810 06:32 PM
Spinnor

10 
2,080 
There was an old thread but for some reason it is now closed...
So I'd have to restate this question:
Why does...

Jul1012 11:10 AM
PAllen

10 
2,080 
Okay, I know that sun wont become BH (Black Hole) , and I know about Chandrasekhar limit and...

May1809 06:25 AM
DaleSpam

3 
2,079 
I have a spacetime which is (I think) AdS_2. The metric is,
http://i53.tinypic.com/whiixw.png
I'm trying to find...

Dec510 04:07 PM
implicitnone

9 
2,079 
when we say "a topological action", do we only mean that the action is metric free? or is there some other meaning for...

Jan1911 04:46 PM
Naty1

2 
2,079 
these should be some very easily answered questions. how does anyone know photons exist? im guessing they can be...

Mar3112 12:51 AM
Austin0

8 
2,079 
Why the six generator of the restrict lorentz group are the three rotation's generator(angular momentum) and the three...

Dec808 03:14 AM
martyf

3 
2,078 
Ok so im just a layman that reads too much and understands too little, but I was hoping someone could help me out with...

Dec2809 06:33 PM
Romulus100

0 
2,078 
Greetings,
I was watching a video lecture by Alex Filipenko of Berkeley's Astronomy Dept. and I was shocked to hear...

Mar1406 02:03 PM
chroot

13 
2,077 
The solution of Einstein's field equations for a simple black hole show a slowing of time as you get close to the...

Feb2714 11:44 AM
PAllen

37 
2,077 
In the equation x = vt it is generally accepted that x and v are vectors and that they have a common eigenvector....

Sep413 06:37 PM
WannabeNewton

21 
2,077 
All right. So, given that the speed of light varies in a gravitational field,
Why, then, does the MichelsonMorley...

Jun1004 07:00 PM
OneEye

21 
2,076 
How/why does a superconductor amplify the effects of gravitomagnetism?
It must have something to do with a coherent...

Sep1107 09:55 PM
adm2e

9 
2,076 
I have rewritten this as as I accidently deleted my original post. I was wondering if the relativistic Doppler shift...

Mar1712 04:03 PM
yuiop

4 
2,076 
If I understand correctly, an object with mass can't reach the speed of light because at the speed of light it would...

Jul712 09:32 PM
PeterDonis

13 
2,076 
Some say that the reason Einstein developed the GR is because he wanted to avoid the spooky "action at a distance,"...

Sep706 10:50 AM
Swapnil

10 
2,075 
I have recently read a paper written by H.A. Lorentz in wich he repeatedly referred to an "ether"... what seems...

Jun906 02:36 AM
Hans de Vries

12 
2,075 
Problem 17.3 in the "problem book in relativity and gravitation" states:
"Show that once a rocket ship crosses the...

Sep2311 12:13 AM
keithdow

20 
2,075 
I was reading The Elegant Universe by Brian Greene and I wanted to see how to do one of his examples with math. Here's...

Jul2210 12:41 PM
yossell

14 
2,075 
In the following article
...

Jul2411 09:45 PM
bcrowell

9 
2,075 
Maybe an old topic.
But if you reflect a light wave, and if the light wave is not coming back in exact the same...

Dec2411 12:53 PM
PAllen

15 
2,075 
If Einstein's relativity tells us that movement is relative to the observer, and if temperature is determined in the...

Oct2012 03:09 PM
pervect

18 
2,075 
In another thread dextercioby posted the comment
I want to address this interesting comment here so as not to divert...

Dec2004 05:01 AM
pmb_phy

15 
2,074 
Suppose we have an observer at a large distance from the event horizon of a black hole, pouring matter towards the BH...

Dec805 01:16 PM
JesseM

6 
2,074 
Hi All,
I was recently trying to understand the Special Theory of Relativity and my understanding of the resolution...

Jan908 04:34 PM
Fredrik

5 
2,074 
will the following actions be appropriate
g^{\mu\sigma}\frac{dA_{\sigma}}{d\tau}=\frac{dA^{\mu}}{d\tau}
Please...

Jun711 09:35 AM
bcrowell

24 
2,074 
Time invariance implies conservation of energy. Space invariance implies momentum convervation. What convervation...

Nov107 04:07 PM
arivero

9 
2,073 
Where can I found an expressionfor the shear stress tensor in GR with some explanation about it?
Thanks
blue

Sep1305 01:43 PM
blue_sky

4 
2,073 
Where is the horizon of the AdS space?
What's the relationship between AdS space and black hole?
Is there any...

Nov2906 12:12 PM
Chris Hillman

1 
2,073 
Hello,
does anybody know a proof of the equivalence (or differences) between the "total mass" integral \int T_munu...

Oct2907 06:16 AM
fnesti

6 
2,073 
In the section shown here
...

Apr2410 07:55 PM
JesseM

18 
2,072 