If I understand this correctly, Einstein's theory of relativity can be used to describe and ultimately define momentum. Doesn’t time have something to do with momentum? - Without time you cannot properly measure velocity, or even motion. Am I missing something.... but without time...how do you measure speed? Without speed how do you define momentum? Obviously momentum is relative to mass, speed and friction. Am I a confused SOB or what?
Iv heard that if you catch up to the speed of light it would no longer exist!!!? It will seem as the light is not moving...but at a stand still...but if light is at a stand still you can’t see it? WTF!
Or what about that experiment where you take a laser beam, and shine it though a vertical slit onto a wall. When the slit is open, the laser beam will appear round on the wall, then as you narrow the slit, the sides of the beam begin to narrow (as expected) and the light becomes oval shaped until you close the slit so far that all you see is the "wave" of the light and it does not end up being a tiny vertical slit of light, but rather it spreads our horizontally.
I’m sorry if I didn’t explain that good enough, but if some of you know about what I’m talking about and care to explain this phenomena to me, id like that a lot! Its has something to do with quantum theory that light is not light until you see it...or something!...I'm just starting to study physics and science in general, so these ideas fascinate me but I’m unable to fully grasp them yet.