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Feb2313 08:40 AM
ZapperZ

1 
41,687 
The section of the Usenet Physics FAQ titled "Experimental Basis of Special Relativity" has been cited here many...

Dec3107 02:06 AM
jtbell

0 
41,328 
Sorry if you have already covered this subject.
Is it possible to apply the formula F = GMm/R^2 for a relativistic...

Dec1706 01:58 PM
pervect

4 
1,682 
Suppose mass A is at rest and soon to be accelerated ( pushed ).
Mass A can not be accelerated all at once because...

Mar2007 07:46 PM
duordi

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1,682 
An astronuat in a nuclear ship accelerates away from earth and gets very near the speed of light, .99999% in fact. ...

Apr708 11:27 AM
LURCH

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if the time and distance between 2 events for observer A are t and d then what is the time and distance between those...

Sep2108 12:43 AM
granpa

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1,682 
Dear fellow relativiters,
I never fully got how to get from the field equations of Einstein's
R_{ \mu \nu} ...

Dec2712 05:48 AM
Madster

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1,682 
Hi everyone, before I post I apologize for my bad English!
I am not a physicist but I am interested in this stuff...

Nov213 04:20 PM
Ibix

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1,682 
Let's say there are two objects of the same mass. One of the is moving, the other not. Now let's look at both of them...

Dec1003 05:05 PM
Tail

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I've read that in GR, gravity isn't considered to be a force, or that it's considered to be a fictitious force because...

Sep1307 02:08 AM
rcgldr

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1,681 
Einstein v. Wheeler's Black Holes
John Wheeler who died earlier this month (13 April) not only coined the term ...

Apr2508 05:32 AM
pmb_phy

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1,681 
Before people start bashing me for not reading up on other threads, I did try and perhaps I am not physicssavvy...

Oct3013 10:43 PM
DaleSpam

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Imagine for a moment a closed system. All that exists in this system is two likecharged bodies which would have the...

Jun1907 11:32 AM
pmb_phy

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After mulling over special relativity for a while, I have come to some conclusions that seem correct, but I don't know...

Nov1107 05:05 AM
FunkyDwarf

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It occurred to me that, as far as calculating the position or movement of objects a reference frame can be rotational,...

Feb808 03:45 PM
CaptainQuasar

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1,680 
Are there other observations for the bending of light apart from Eddington 1919...i want to know that whether bending...

Mar2908 11:19 AM
Alfi

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I have a cube with a spectrometer at the center of each face. In the center of the cube is an exited glob of hydrogen....

Jun2008 08:12 AM
zonde

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...time dilation and length contraction would mean that I could travel the entire 'breadth' of the universe in zero...

Sep1008 11:52 AM
DrGreg

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1,680 
Hi,
I am a bit confused about a certain aspect of Special Relativity and I am hoping someone can clear this up for...

Oct2308 07:11 PM
DaleSpam

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Was just thinking about this earlier today. Digging through a couple books, I haven't found an obvious statement one...

Dec1308 11:25 PM
Primordial

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If light travels at constant velocity c in vacuum and constantly relative to any inertial reference body, then does...

Apr1510 05:46 PM
ZapperZ

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1,680 
two identical ships launch on parallel paths r distance apart. the are completely alone ]. once they reach some...

Apr411 11:46 PM
ghwellsjr

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As I've just recently started studying relativity, I need some help with these basic concepts.
So this thread is...

Jun913 09:30 AM
Sugdub

17 
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Hi All,
Probably some of you have seen papers relating Woodward research of the origin of Gravity and Mach's...

Feb2304 05:58 AM
TeV

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In all descriptions of the Michelson Morley experiment I know of, the two arms of the interferometer are at right...

Jul807 06:40 AM
country boy

3 
1,679 
Can anyone tell me whether Wien's law of displacement is valid in Relativistic frame??
Any help would be greatly...

Sep1408 10:47 PM
bernhard.rothenstein

2 
1,679 
Hi,
I've heard it said that for Schwarzschild spacetimes, then the coordinate 'r' is an affine parameter for radial...

Feb611 04:07 AM
LAHLH

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if light hits a mirror at a 90 degree angle, wouldn't it HAVE to travel slower than the speed of light when it hit the...

Nov2111 11:03 PM
turbo

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Does the relative motion of a thing slow down the relative motion of a thing? Hope that makes sense or you can work...

Jan1812 08:53 PM
jartsa

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Dear all,
It is known that the recent ICARUS finding was in agreement with Einstein’s Special Relativity Theory...

Jun412 02:00 PM
Mark M

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1,679 
I understand that the speed of light can be slowed down when it passes through different mediums.
I also understand...

Dec2213 08:26 PM
JVNY

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Hey everyone,
(First off, this is not a HW question, but I can move it there if you are unhappy about my...

Jan1509 05:00 PM
cduston

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I'm trying to use the equations on this page and I have solved the following. Is it correct?
...

Aug411 03:54 AM
randombill

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1,678 
:confused:
Some papers say that Palatini Formalism still works if the frame variables e^i_a
is not an isomorphism...

Apr506 12:20 AM
kakarukeys

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What is the approximate fractional difference in time measured between a quartz watch crystal resonating either...

Mar1007 12:25 PM
Mentz114

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This is a thought experiment that best depicts my issue in understanding special relativity, particularly the...

Jul3110 09:53 PM
JesseM

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ok, if when we look at a planet that is say 100000 light years away, and we can see it emitting light, and that light...

Nov2711 04:28 PM
ianpr

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I had 1 year ago a little discussion with DaleSpam about the short Lorentz derivation (triangle) if a photon alone...

Apr1613 06:38 PM
digi99

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Popular Science has been running an article about Sonny White, a prominent engineer at NASA's JSC.
White has been...

Apr613 06:46 AM
tade

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I've just been thinking (prolly a bad idea): Lorentzian metrics aren't actually metrics at all are they? Infact...

Nov1604 02:03 PM
jcsd

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Are there any experiments which test special relativity? I know of the Kennedy–Thorndike experiment, but it involves...

Nov1906 04:44 AM
jtbell

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Trying to see the logic in deriving length contraction and time dilation using the Lorentz transformations and inverse...

Apr514 02:15 PM
ANvH

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1,676 