Re: Space Travel
- From: The Ghost In The Machine <ewill@xxxxxxxxxxxxxxxxxxxxxxx>
- Date: Tue, 26 Feb 2008 21:13:37 -0800
In sci.physics, James Colvier
<jamescolvier@xxxxxxxxx>
wrote
on Mon, 25 Feb 2008 15:38:28 -0800 (PST)
<20ae0e32-37a0-4025-8b31-062eed869bcb@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>:
I was wondering if anybody knew anything about the possibility of
traveling faster than the speed of light. I studied E=mc2, but if I
understand it correctly, that doesn't actually state that it isn't
possible. If it were possible, what would it require, and how would it
operate?
-James Colvier
Special Relativity precludes such. The propagation
equations are simply the Lorentz:
x' = (x-vt)/sqrt(1-v^2/c^2)
t' = (t-vx/c^2)/sqrt(1-v^2/c^2)
If v^2 > c^2 x' and t' go imaginary, which is
truly cuckoo [*], and certainly beyond the theory's
design parameters.
If v^2 = c^2 one gets a divide by zero condition; one can work
around this with some care, but that's not faster than light,
that's as fast as light.
[*] You know who you are.
--
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