nissin said:
That Brian Greene is damn interesting. I think I'm gonna get his book.
His two books are fairly similar, witht he first being a good bit more fundamental and a bit tougher of a read. I found that one (The Elegant Universe) to be a bit more rearding though.
suaveric said:
I thought it was the other way around? Travel back but not forward?
Nah. The elapsed time in two frames relative to each other is given by the relationship of...
1/(sqrt(1-v^2/c^2)) where v is your velocity and c is the speed of light. Since v < c in all cases, this factor must always be greater than 1. This equation is usually just called "gamma", which we'll use & for right now.
so if T'=&T where T is your time measured, and T' is the place moving RELATIVE TO YOU(important), then you will always measure time at a slower rate than they will.
Hope that made some kind of sense.
If you want to read some stuff on possibilities of traveling back in time, read "Time Travel in Einstein's Universe" by J. Richard Gott. Personally I didn't really like the book, seemed too "what if" and "maybe if...than" and not really grounded in things that are feasible, but many others enjoyed it immensely.
