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Feb2313 08:40 AM
ZapperZ

1 
37,474 
The section of the Usenet Physics FAQ titled "Experimental Basis of Special Relativity" has been cited here many...

Dec3107 02:06 AM
jtbell

0 
37,210 
Gents,
What programs are most successfull for visualization physical processess?

May1205 04:27 AM
Neitrino

3 
928 
Very interesting...
General Relativity redefined?

Mar508 04:59 PM
HallsofIvy

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928 
What is the divergence and curl at the edge of a black hole?

Jul2609 04:00 AM
siyphsc

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928 
I recently started selflearning special relativity. I am having lots of trouble convincing myself about the Lorentz...

Jul2911 01:34 PM
ophiophagous

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928 
Arguably, this is pure mathematical question, but most discussions of semiriemannian manifolds are in the context of...

Sep1511 05:49 PM
PAllen

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What would happen if Theory of relativity is abolished or challeged?
As the news is coming that Neutrino is supposed...

Oct411 11:32 AM
jtbell

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927 
Are time and space independent of an object, or are they properties of an object?

Jun1809 01:07 PM
Gear300

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Hey everyone, I am new on this forum and don't really know how things work here, but I'll try my best. I am a junior...

Oct210 12:13 PM
Mentz114

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Hi,
I can't say I've really ever done much relativity but this made me wonder. Imagine we have some frame...

Nov1910 11:58 AM
bcrowell

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927 
Thus wrote PAM Dirac in his little monograph, "General Theory of Relativity", p.34t. More fully, "Even a light signal...

Feb611 06:48 PM
goedelite

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927 
Point particles have mass.
Point particles are dimensionless.
Would it stand to reason that point particles are...

Apr1311 12:10 AM
bcrowell

2 
927 
I know that it is observed that galaxies and stars thousands and millions of light years away are expanding away from...

Nov2812 04:46 PM
PeterDonis

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927 
I just read in a article that NASA has revisited an older theory and found they can improve on it greatly. here is a...

Jan2513 11:21 PM
pervect

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927 
The speed of light is constant but with reference to what?
Distances are not absolute and neither is time.
Is it...

Oct1409 01:13 PM
ZikZak

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926 
A person is in a confined cubicle  say 1m x 1m x 1m. Assuming he is not accelerating, he should not be able to tell...

Dec1209 05:00 AM
HallsofIvy

3 
926 
In the massenergy equivalent equation, E=mc^2, why is it related to the speed of light?

Dec2509 01:27 PM
Nabeshin

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926 
Let's suppose that I am the Captain at a space dock sitting in interstellar space. My crew decides to go on a trip in...

Dec3109 05:56 AM
HallsofIvy

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926 
Hi,
I'm rather confused about the procedure in which people obtain gravity from gauged (super)Poincare algebras....

Jun3010 02:25 AM
haushofer

3 
926 
I'm amazed at how often the question arises, and how many people are interested in "fasterthanlight" travel. So in...

Oct2110 12:26 AM
Passionflower

6 
926 
I was working on a problem the other day involving the Tensor versions of the Einstein Field Equations where I defined...

Mar112 08:30 AM
PAllen

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926 
I'm reading Spacetime and Geometry: An Introduction to General Relativity by Sean M. Carrol and in the chapter on...

Jan2413 10:43 PM
tensor33

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Calculating gravity with high precision ?
Few questions / concepts im trying to get clarified....adding all the...

Nov2513 12:13 PM
Nugatory

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I understand the ideas behind relativity (4d space time, different speeds see different slices of it, what not), but...

Oct3104 12:01 PM
pervect

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I'm reading Einstein's book on relativity (aptly named Relativity), and trying to follow his "simple" derivation of...

Nov910 03:19 PM
rhenretta

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925 
Find the coefficients in coordinate bases, of the metric tensors for Minkowski space, for "rotating coordinates"...

Apr811 06:06 PM
Rasalhague

4 
925 
Sorry if I am asking a too trivial question! I am having a confusion regarding the followingThe solution to Einstein...

Oct3112 03:34 PM
tom.stoer

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When the 'evaporation' of a black hole supposedly occurs, it is always attributed to 'Hawking radiation.' As I...

Feb413 05:56 PM
tom.stoer

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Gravity seems to squish space time, velocity seems to also.
It seems that through each's affect on distance, a...

Aug609 09:06 AM
jtbell

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924 
This may have been hashed before, so forgive my indulgence if this post is a logical fallacy.
Energy = Mass, OK
...

Feb510 11:26 PM
Nabeshin

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924 
Hi all,
I've heard it said that if I could send a message faster than light, then another inertial observer would...

Nov2211 11:18 PM
AdrianMay

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924 
Hi, I am currently struggling with an exercise in Sean Caroll's Spacetime and geometry. The question is "Can we make...

Dec2311 09:54 AM
IRobot

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924 
Hey guys
The lab manual for the class is found here
http://advancedlab.physics.gatech.edu/labs/Muons/Muons.pdf
...

May2213 03:26 PM
piareround

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While explaining how science works in my biology class my biology teacher said that relativity had been proved wrong,...

Dec1912 03:19 PM
PeterDonis

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Dear all,
This is a continuation of my previous thread, but I figure it's cleaner to start afresh with this topic....

Apr713 10:45 AM
NanakiXIII

6 
924 
Hi.
BHs receive gravity of other stars and then move. Does this mean that information of gravity of other stars go...

Sep1012 07:31 AM
sweet springs

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923 
It seems that the common approach to obtain the equations for the Lorentz transformations is to guess at its form and...

Mar1410 12:04 PM
JT7

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923 
in my book i think that on any planet if we can stay for 1 year then on earth how much time are gone

Jun1611 10:36 AM
bcrowell

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923 
The ship leaves the station carrying two mirror clocks. One aligned with the motion. The other, orthogonal to the...

Feb1512 05:06 PM
intervoxel

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Hello guys , beside Einstein's General Theory of Relativity by hervik , is there any lecture or book about this case ?...

Nov1312 02:44 AM
thecoop

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So Newton says that gravity is an attractive force and some people believe in gravitons to transmit that attractive...

Feb2113 02:04 PM
Nugatory

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923 