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Feb2313 08:40 AM
ZapperZ

1 
37,364 
The section of the Usenet Physics FAQ titled "Experimental Basis of Special Relativity" has been cited here many...

Dec3107 02:06 AM
jtbell

0 
37,126 
I recently read Griffiths paper on Hidden momentum, and still didn't found it complete. Following is the short...

T 06:31 AM
Jonathan Scott

31 
687 
Hi, from what I understand about the twin paradox, Is the resolution essentially that since the traveling twin...

Y 11:28 PM
russ_watters

4 
194 
Hello,
I was unable to find a similar thread, so I would like to ask about this myself. I have several textbooks on...

Y 11:06 PM
Nugatory

21 
605 
Light can be affected by gravity and as I understand it light can be a source of gravitational effects on other...

Y 02:19 PM
PAllen

15 
524 
Here is my basic question:
Lets say we have a massless charged shell with charge q and radius R. Is there some R...

Y 01:36 PM
PeterDonis

20 
358 
This has bothered me for a long time. I understand that time varies with velocity relative to the observer. But what...

Y 06:33 AM
Nugatory

9 
253 
Suppose a black hole travels at something like v = 0.999999999c relative to some observer. Does the black hole's event...

Y 04:46 AM
martinbn

6 
253 
In another thread Wannabenewton mentioned:
and gave this reference:
Until WBN mentioned it, I had never given...

Y 01:44 AM
WannabeNewton

199 
7,252 
Hello everyone. Thought of this question while at work. I've read the universe appeared out of nothing and expanded...

Y 12:08 AM
Mordred

9 
220 
Hi,
I know there are already other posts about extremal aging, but all of them are actually closed
and none of...

Apr1514 04:57 PM
RiccardoVen

6 
219 

 
 
 
Hello,
Im interested in surface gravity of Kerr black hole it means, I need to find killing vector for Kerr which...

Apr1514 09:33 AM
Vrbic

2 
153 
Please help me to understand.
In theory with a powerfull enough ship a space man can travel to a distant star, say...

Apr1514 09:09 AM
lowemack

18 
512 
Hello, all.
I've been attempting to understand relativity the past week. I've also been reading about quantum...

Apr1514 02:06 AM
bhobba

5 
257 
So, there's a paper here that I'm a bit confused about. On pages 3 and 4, it talks about energy density magnitude and...

Apr1414 08:22 PM
MattRob

0 
199 
If I am not mistaken, the change of the minkowski metric to:
n_{\mu\nu} \rightarrow g_{\mu\nu}(x)
will violate the...

Apr1414 08:10 PM
Geometry_dude

4 
154 
One problem in understanding Special Relativity is that it is intuitively hard to agree with relative simultaneity.
...

Apr1414 05:15 PM
andromeda

38 
1,338 
"... Supposing that the bodies act upon the surrounding space causing curving of the same, it appears to my simple...

Apr1414 04:13 PM
DaleSpam

10 
328 
I have a question on the tension between special relativity and quantum mechanics, so please correct the category if...

Apr1414 04:03 PM
DaleSpam

17 
531 
I'm starting with the Einstein box. It's the one that's floating in space and has photons moving from one side to the...

Apr1414 08:48 AM
UltrafastPED

17 
398 
Hi
Bear with my possible ignorant. I am puzzled over this dilemma. If General Relativity states that gravity is the...

Apr1414 07:27 AM
Mordred

5 
224 
My question is the following: Have there ever been any experimental tests of the Einstein equation (a.k.a. Einstein...

Apr1314 05:33 PM
Geometry_dude

2 
234 
Suppose that you have a region of space with no fields and the only matter is in the form of a cloud of pointmasses....

Apr1314 11:54 AM
WannabeNewton

2 
243 
...
I gained most of my elementary understanding of Special Relativity (SR) from books by Isaac Asimov. I made the...

Apr1314 09:14 AM
Wes Tausend

29 
792 
I'm sticking my neck out because I just worked this out and may regret this post later.
The spaceship paradox...

Apr1214 06:12 PM
Mentz114

133 
4,961 
This came up while I was trying to research the interaction of an electromagnetic plane wave with a dielectric slab,...

Apr1214 04:16 PM
universal_101

2 
191 
Someone on another forum shared with me that a 6L6 vacuum tube exhibits a blue dot when in operation that is supposed...

Apr1214 01:44 PM
nsaspook

2 
257 
Hello everyone,
I have recently read a puzzling statement on my Electromagnetism (Chapter on Special Relativity)...

Apr1214 11:45 AM
Zag

15 
340 
Neat "rubber sheet" analogy of the curvature of space time on YouTube. Skip to 5:57 for orbits around the Earth moon...

Apr1114 02:46 PM
A.T.

1 
241 
good day ,
I am not a professional , but I read that in according to laws of physics it is not possible to go...

Apr1014 11:20 PM
Wes Tausend

5 
286 
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

0 
175 
Given that distance between two points can vary depending on your frame of reference wouldn't that mean that the...

Apr1014 04:59 AM
ghwellsjr

5 
274 
Lately, I have been giving a lot of thought to whether or not photons would have mass or not. I know most on here an...

Apr914 11:33 PM
Matterwave

13 
528 
I have been trying to work out the solutions to a homogenous line universe using special relativity, and have found...

Apr914 10:17 PM
122520253025

2 
294 
Hey guys
based on the Einstein train thought experiment we can say that different inertial frames disagree on...

Apr914 04:49 PM
analyst5

20 
801 
In a video on the youtube channel "Veritasium", it is explained that an electric field and a magnetic field is...

Apr914 01:37 PM
jartsa

14 
456 
Suppose we do a constant Jacobian transformation (which is not Lorentz) of a SR (inertial)
frame, by using four...

Apr914 12:01 PM
hwl

2 
410 
Kevin Brown, in his excellent book "Reflections on Relativity" p. 409, "immediately" integrates 2 geodesic equations:...

Apr914 07:35 AM
Bill_K

1 
208 
I've been told on many occasions that light will always be measured at the same speed regardless of measuring...

Apr814 11:01 PM
ghwellsjr

15 
941 
Dear,
If i start from the Einstein Hilbert ACtion and apply the usual Noether rules (as we use them on flat...

Apr814 09:42 PM
pervect

2 
246 