This page confuses me. Under that section you've listed, it makes sense that a scientist performing an EM experiment on a stationary platform would observe light from his frame of reference to be traveling at c. It also makes sense that a scientist performing an EM experiment on a moving train...
So, I can sort of grasp why it's the case, but why precisely must time and length vary as a consequence of invariant speed? Is there some thought experiment that would make this clearer to me?
Also, then, what exactly is the reason for light speed's invariance? If I understand your post...
Hey, this is my first post. I am a biology major so I know pretty much nothing about physics, yet sometimes it interests me way more than chromosomes do.
So, given that I know nothing about physics, this is probably going to sound like a stupid question. But I've always wondered how it is...