Hi everyone,
I'm a first year engineering student, and basically I'm wondering if I'm in the right program or not. This post is kind of long (but for a good reason), so first I'll thank anyone who takes the time to read it all and give me their input.
I chose engineering because I'm a...
T = root((t2 - t1)^2 - (x2 - x1)^2)
As I understand it, T is proper time as measured in someone's intertial frame, and (x2 - x1)^2 is their movement through space... but in what frame is (t2 - t1)^2 measured?
Hmm... I didn't really read up much on Length Contraction, but what I read was that it's the object itself, and not the distance travelled, that contracts as its speed approaches c. In any case, what's the principle that states that travel distance contracts as speed approaches c?
Could someone explain this to me? Unless my math is wrong, the trip should take ~1.52 x 10^6 years, not 25 years (I'm assuming that the "trip to the edge of the observable universe" is referring to the radius of the universe, which I've read to be 1 500 000 light years), to the one in the...