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Re: Speed Of Light

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Posted by SlySi on November 3, 1999 22:13:46 UTC

If you were, say, at a point on the edge of the galaxy, spinning round at 250000000mph, you are travelling at 0mph in relation to the galaxy, so equal accelerations in either direction mean that you would end up travelling at the same speed with relation to the galaxy, because you started with a relative velocity of 0.

One the second point however, there is a problem. One of the basises for relativity is that, no matter how fast you are travelling, if you turn a torch on, the light from it will appear to travel away from you at the speed of light. So, if the sun is the torch, no matter whether its travelling in front of or behind the planet, the light takes the same amount of time to get there.

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