Quote:
Originally Posted by Morepower
Hi Renormalised, where would the Gamma rays be coming from. Sorry I don't understand that.
.
|
Light waves from
in front of you get 'Blue shifted', their frequencies increase up to
gamma rays.
Quote:
Originally Posted by Morepower
On another note if the train was supplied electricity from Earth then I'm assuming it would use up 100yrs worth of power ? If this is the case then it seems it pays to take your fuel with you when time travelling  . |
That's what I feel too, it seems like one weeks refuel could lead to a sort of perpetual motion sort of problem, but I haven't found the right answer yet
Quote:
Originally Posted by Morepower
The other thing they said is that if any of the children on the train ran up the aisle, from back to front, they theoretically would exceed C. However they did continue to state that this couldn't happen, but I forget the reason why.
|
They may think they are running fast enough to break the speed of light, but time for them has dilated so that, to an observer from earth they are running really slow, so train speed + kid speed is still under C.