i think it would stop AT the speed of light ....scott1 said:According to realtivity if you went faster then the speed of light time would appear to stop.
But I'am not sure if that's what your question is.
I don't think that's what his question.He didn't ask would it be possible to stop time but can it be stoped.Hootenanny said:According to einstein;
[tex]E_{k} = \frac{mc^2}{\sqrt{1-\frac{v^2}{c^2}}} - mc^2[/tex]
If we are travelling at the speed of light the term [itex]\frac{v^2}{c^2}[/itex] is one and hence the denomator of the fraction is zero, leading to the first term becoming infinite. Therefore, to travel at the speed of light would require an infinite amount of energy. That's my understanding anyway.
-Hoot
I think I understand what your asking.Are you asking that time itself stops and everthing in the universe seems to stop no matter how fast your going.i mean stops so that it all freezes.
If the denominator was zero, the fraction would be undefined, as far as I understand.Unless you meant tending to zeroHootenanny said:According to einstein;
[tex]E_{k} = \frac{mc^2}{\sqrt{1-\frac{v^2}{c^2}}} - mc^2[/tex]
If we are travelling at the speed of light the term [itex]\frac{v^2}{c^2}[/itex] is one and hence the denomator of the fraction is zero, leading to the first term becoming infinite. Therefore, to travel at the speed of light would require an infinite amount of energy. That's my understanding anyway.
-Hoot
Isn't that what stop watches are for ? :shy:roger said:can time be stopped ? if so how can it be done ?
Sorry tending to zero, becuase v would never actually equal c.roger said:If the denominator was zero, the fraction would be undefined, as far as I understand.Unless you meant tending to zero
In fact, there's no such thing as "the own reference frame" of the photon, because the particularity of something moving at the speed of light is exactly that it moves at the speed of light in ALL reference frames - it is the definition of the conformal structure of spacetime.hurk4 said:A photon travels at the speed of light. Coming from the sun it will take 8 minutes to arive at the earth. Maybe in its own reference system (what does that mean in the case of a photon?) time stays zero,
You're absolutely terrible.Isn't that what stop watches are for ?
(ok, silly joke...)
so if you travelled at c, like a photon, it would take you 0 time to travel any distance, which means that you would be everywhere in the universe at once! which makes sense due to length contraction. of course we are talking about limits where v->c, so it is asymptotic and you would never reach c.PatPwnt said:Time is stopped for photons. They don't experience time. If you could travel the speed of light, it would take you 0 time to travel any distance.
Right, at the speed of light time stops.i think it would stop AT the speed of light ....
at a speed faster than light, it would go in reverse direction or something like that
anyway, yeah even I'm not sure in what context you're asking whether time can be stopped
So the photons that take 8mins to travel from the sun to earth experience no time?Time is stopped for photons. They don't experience time. If you could travel the speed of light, it would take you 0 time to travel any distance.