0 Members and 1 Guest are viewing this topic.
An object traveling faster than light would be travelling backward in time. If it were travelling backward in time (from our perspective) it could not emit any light in our present or future as the object has already traveled into our past.
Quote from: MikeS on 08/05/2012 09:35:39An object traveling faster than light would be travelling backward in time. If it were travelling backward in time (from our perspective) it could not emit any light in our present or future as the object has already traveled into our past. A particle traveling faster than light can travel back in time but it need not do so. It all depends on what frame of reference you're observing events in.
Quote from: Pmb on 08/05/2012 13:50:21Quote from: MikeS on 08/05/2012 09:35:39An object traveling faster than light would be travelling backward in time. If it were travelling backward in time (from our perspective) it could not emit any light in our present or future as the object has already traveled into our past. A particle traveling faster than light can travel back in time but it need not do so. It all depends on what frame of reference you're observing events in.I think I made that clear in the second sentence as I said "from our perspective" The first sentence also implied it "An object traveling faster than light would be travelling backward in time. " The object traveling faster than light and traveling backward in time to be meaningful, has to be viewed in the same frame.
"from our perspective" is the key term here. Let us take two inertial frames of references S and S'. I will be at rest in S and you will be in frame S'. The tachyon cannot be at rest in any inertial frame of reference. It is possible to choose S and S' such that obsevers in S observer the tachyon traveling back in time while observers in S' will not observe the tachyon moving back in time.
electrons might travel faster than the speed of light.
The voltage is the speed of electrons.
But Einstein's theory of relativity says's nothing an go faster than light.
If Einstein is correct there should be a voltage that can not be achieved because the electrons can't go any faster.
I was thinking the other day about this. Here's my opinion. If an object were to travel faster than the speed of light, it would become so red-shifted, than the object would not only turn a color of no color, it would turn into a micro wave or a radio wave, or maybe, if it went so fast, it would turn into nothing, space its self. (of course, i mean in conditions of a empty space, where it won't burn up and nothing would block its path.)What do you think of this? I want your opinion. ? ? ? ? ? ? ?
An object traveling faster than light would be travelling backward in time. If it were travelling backward in time (from our perspective) it could not emit any light in our present or future as the object has already traveled into our past. ?but dosn't this meen, that if it were possable to do, sence our vew of the stars is delade. meaning some that we see are burnt out ded, its safe to say moving away from beond light speed would slow time to far off destinacions. a kind of warp travle like star trek? lol hate to say it.