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How does it work, that if you travel at the speed on light time slows down?

2007-06-01 20:07:35 · 7 answers · asked by Anonymous in Science & Mathematics Astronomy & Space

So, lets say you could travel faster than light......would you eventually go back in time?

2007-06-01 20:13:45 · update #1

7 answers

Well mathematically, you would use the Lorentz factor. For example: To = T * (1 - (v^2)/(c^2))^1/2. Where To is the time of an observer (for this instance someone on Earth) and T is the time relative to you if you were on a spaceship that had a velocity approaching the speed of light, V as the velocity of your spaceship and c as the speed of light constant. (3x10^8 m/s) As you can see V cannot be greater than C because otherwise (v^2)/(c^2) would be >1 and there would therefore be a squareroot to a negative number (or imaginary number.)

Ty this formula out, ie make v = 0.99 C and To = 20 years.
Another explanation for how this works is that they have proven that the speed of light will always travel at the same velocity to you (3x10^8), no matter how fast you are travelling.

2007-06-02 01:23:37 · answer #1 · answered by Anonymous · 1 0

Events existence meaning time is established by the events happening why you begin to move close to or faster than the speed these events occur you are in a bubble speeding through the events of existence when you stop you find maybe 1000's of years have passed when you only travel for 1 year. Speed of light is not just seeing it is an events happening limit not just a speed like a car limit
From my understanding odf Einstein and Carl Sagan time would infinitely slow time down in your bubble but you would not travel back in time

2007-06-02 03:14:16 · answer #2 · answered by Johnny W 2 · 1 0

The only way to explain the phenomenon of the speed of light being constant, would be that time slows down.

UPDATE: If you could travel faster than light, you would not go back in time. Your mass would become infinite -- so if your mass is infinite, what would you use to track a backward movement in time? You would be everything -- and the state of things as they were in the past is not the same.

2007-06-02 03:11:01 · answer #3 · answered by Mickey Mouse Spears 7 · 1 0

Anything traveling the speed of light doesn't have time just slow down. Time is irrelevant to anything traveling the sped of light.

2007-06-02 05:50:34 · answer #4 · answered by smartprimate 3 · 0 1

Theoretically it is so. But Practically Travelling at the speed of light is impossible.

Time dilation at relativistic speeds is proven beyond doubt. But we still haven't reached the speed of light.

2007-06-02 06:05:20 · answer #5 · answered by Nivvedan 2 · 0 0

u wud jus disintegrate if u travelled at the speed of light or faster.

2007-06-02 05:55:43 · answer #6 · answered by Anonymous · 0 1

I think I found some useful links for you.

2007-06-02 05:21:25 · answer #7 · answered by Brian K 1 · 1 0

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