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Feb2313 08:40 AM
ZapperZ

1 
37,494 
The section of the Usenet Physics FAQ titled "Experimental Basis of Special Relativity" has been cited here many...

Dec3107 02:06 AM
jtbell

0 
37,229 
I have never accepted Einstein's thought pattern on this and other matters. I have examined his equation to calculate...

May907 08:53 PM
Chris Hillman

9 
2,016 
According to Einstein's equation E=moc2, any object which has mass has energy, and, conversely, anything which has...

Nov1011 01:36 AM
tom.stoer

6 
2,016 
I am aware of the motives of finding a modification of Newtonian mechanics, but the effects of relativity are so...

Oct912 11:41 AM
Histspec

18 
2,016 
What`s the difference between Lorentz and Galileiantransformation?

Mar1006 04:41 PM
Eivind

9 
2,015 
Suppose one prepares two particles in an entangled state (at point S) and that one has detectors (say A and B) at...

Sep1406 10:33 PM
michael879

15 
2,015 
I don’t see that this question has been asked before and I am hoping the generous moderators of this forum will be...

Nov2107 10:21 AM
wsellers

3 
2,015 
Suppose I am an observer stationed at the origin of frame O, watching a frame O' pass by me at some velocity u. If I...

Sep1906 11:27 PM
jtbell

31 
2,014 
From what I understand of GR, time dilates due to the gravity of massive bodies. I like to think of it as the three...

Dec2509 03:00 PM
A.T.

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2,014 
hey guys i just saw a weirdo on TV claiming that the speed of light is not constant......since that is a direct attack...

Aug1610 05:29 AM
Jocko Homo

10 
2,014 
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 
2,013 
I think this "elephantintheroom" issue is important enough to deserve its own thread. I believe it is at the root...

Mar1711 07:10 PM
DaleSpam

23 
2,013 
What if absolute motion was detected, would this mean to Einstein's theory of special relativity?
Callisto

Apr1105 05:53 PM
JesseM

14 
2,012 
What are the examples of superluminal events which do not transmit information or energy, and hence not violating...

Jun2911 02:44 PM
dan_r

5 
2,012 
If I accelerate to .9c I am gaining mass, but if I reverse thrust and decelerate why aren't I still adding mass since...

Sep2707 04:47 PM
DaleSpam

14 
2,012 
Hi,
it's very interesting, that many parts of special relativity were developed before Einstein by Lorentz, Larmor...

May1208 01:01 PM
peter0302

10 
2,012 
Consider the Schwarzschild blackhole vaccuum solution. Now let a test particle drop from "coordinate rest" at a...

Feb809 12:56 AM
JustinLevy

16 
2,012 
General relativity states that all free falling bodies follow spacetime geodesics. A geodesic is a path of extremal...

Apr1111 04:20 PM
pervect

12 
2,012 
I imagin this thought experiment: a train which travels with the speed of light is trying to enter a tunel which has...

Sep907 03:30 PM
Doc Al

7 
2,011 
First please forgive me, if my question is in the wrong board.
Dear members.
I'm only Junior High School...

Feb1312 11:28 AM
reko

11 
2,011 
what is to top speed that this rocket can achieve as seen by a stationary observer? Also if you look at the...

Jun508 01:10 PM
neh4pres

22 
2,010 
In the Schwarzschild solution consider two test point particles, p1 and p2, both at the same distance from the black...

Jun310 11:43 AM
JesseM

15 
2,010 
Einstein's equivalence principle states that freefalling observers are in local inertial frame, so one can construct...

Nov310 01:05 PM
Mentz114

11 
2,010 
According to Hawking Radiation, a black hole if left alone will eventually evaporate. As the black hole loses mass the...

Mar912 10:04 AM
Naty1

5 
2,010 
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 
2,009 
hey , i was wondering if this would be true :
at school we often tell us that the universe is in a constant...

Sep1507 01:23 PM
pervect

6 
2,009 
I'm reading the relativistic mechanics chapter, of Hestenes' New Foundations for Classical Mechanics.
After the...

Jun1208 05:21 PM
yuiop

11 
2,009 
This is probably a repeat question from somone somewhere, but here goes. Please fill in the blanks. I don't need a...

Jul3009 04:14 PM
solveforX

22 
2,009 
Probably this has an easy answer but I can't see it just now, according to the principle of relativity we shouldn't be...

Jan2111 10:52 AM
TrickyDicky

20 
2,009 
Can someone tell me what the numerical value for the entropy of a black hole of five solar masses would be?
Is it a...

Aug604 08:21 AM
kurious

2 
2,008 
Dear esteemed physicists :)
I've been trying to satisfy my own curiosity by proving relativistic Doppler using only...

Dec2704 11:00 PM
Andrew Mason

7 
2,008 
Is Gravity a Force of Attraction?
We are familiar with electromagnetic attraction and we understand how and why it...

Dec1804 07:11 PM
Nereid

10 
2,007 
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

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2,007 
I am curious if there has been any research in to the elasticity of spacetime in regards to mass. If we consider that...

Oct2811 10:46 PM
yoron

7 
2,007 
Is there a logical connection between the concept of a naked singularity and the concept of a timelike singularity?
...

Sep2412 06:21 PM
bcrowell

14 
2,007 
I'm familiar with how one foliates, say, a fourdimensional spacetime (\mathcal{M},g) so that one can identify it as a...

Dec2006 02:04 AM
coalquay404

6 
2,006 
In physics questions, objects are shown to travel at relativistic speeds, like 0.6c or 0.8c. This is all hypothetical,...

Apr2109 01:53 PM
JesseM

7 
2,006 
i am a master's student and want to work on general relativity! does anybody have information on the most recent...

Oct3007 08:53 AM
Dvin

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2,005 
This question may be kind of metaphysical, but I don't understand the relativity of simultaneity and its implications....

May413 09:30 AM
DevilsAvocado

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2,004 
Roger Penrose is reported to have said:
And I understand that, in Minkowski spacetime, the relative velocity...

Nov2909 03:01 AM
Grimble

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2,003 
Hello, I was wondering how collisions would when both objects are travelling at c.
Imagine 2 cars driving towards...

Nov1311 04:59 PM
Drakkith

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