Einsteins Theory of Special Relativity in 2 minutes
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at 0:45 you made a mistake. You said that the light travels different distances and that is why the train observer B sees the lightning at different times. However, the light only travels different distances from the perspective of the OUTSIDE OBSERVER. From the frame of reference of the person inside the train, the light traveled an EQUAL distance from his frame of reference because he is in the middle of the train. THAT is the whole point of relativity.
2 years ago 7
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You mean to say, the closer you get to the speed of light, the SLOWER time passes. It's the person traveling near the speed of light that will see only one year vs. ten years for the guy on the space station.
3 years ago 5
All Comments (91)
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how can we humans judge the speed of light? when we can only see a fraction of the actual spectrum of light.
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/watch?v=Qg4nWT3FYJI
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The light can not travel in diagonal path referent to the source,since then,the light speed is constant(in this case),light will take the same amount of time to reach each mirror,no matter how fast it(this sort of light clock,or whatever)travels...for both observers...
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I wish you were my physics teacher so bad!!!! =,(
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I appreciate your very nice graphic explanation. Keep up the good work sir!
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He's wrong, with the observer b on the train, they are only looking forward to see the one lightning strike, they would not see the other at all...
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I agree that this train example which is often given is incorrect. The man on the track's perception would be that the girl would see the front strike first and the back last. That perception would be incorrect because of how light acts. Time and space would alter to allow the girl to see the strikes at the same time.
If the example is correct then a person travelling on a train going in the opposite direction would experience the strikes in reverse order. Surely that cant be right
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well made ;)
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JamesMorlan is right. You have to fix your video at 1:45.
Its the other way around. I know because I have a test in 2 days from now and I'm studying hard to pass that damn physics test.
Correct answer is:
For observer B: a short amount of time like hours
could be
For observer A: a looong period of time. Years to be exact.
Trivialnights 2 years ago
I could fix it, but the debate is far more interesting, plus it was for a college course in TV production which i've managed to pass... good luck with the test ;)
EH3Films 2 years ago