I need doug around to clarify something for me..
my friend was sayin sumthin about the reason you cant travel at the speed of light is because you'd be infinitly massive... care to explain?
"massive" is a term used for volume, which is NOT the same as mass which is what you mean. they are related by density, but thats another story. It all comes from einstein's theory of reletivity and his E=MC^2 equation, which as you can see relates energy to mass and the speed of light. What you actually need is infinate energy, and you can see in that equation that infinite energy implies infinate mass
Its a little more complex than that, but thats the general jist.
One question that bothered me before i studied quantum theory was "if you need infinite mass to travel at the speed of light, and light is made up of photons (which have a small mass), then how does light travel at the speed of light??" The answer is because of wave-particle duality - ie the particle does not exist while traveling, only the probability wave does.
hmm, im considering astrophysics. any good?
after watchin that vid you tell me if its worth it!
we get to explain all that and understand why it is how it is
On top of that, come to the UK - theres a *MASSIVE* shortage of physisists, so you get to pretty much write your own paychecks lol