I’m sure this is obvious to most people who are not dumb that the key discovery of the person known as the world’s greatest smarty pants might be a difficult subject, but I apparently have the dumb. I have been studying general relativity (“Einstein gravity”) on and off, for twenty years, and while I get some of it, other parts still just keep breaking my head.
Like, why does time slow down when you accelerate? That’s, like, almost THE key prediction of GR. The explanation seems so simple, but yet, when I try to work through the links of the chain, I just can’t get it. I read the words and then try to recreate it in my little black grid-ruled notebook and end up right where I started, asking the question, “What does baffled mean?”
The current attempt involves having literally about a half-dozen books that have useful-seeming explanations of gravitational time dilation, which I am going through in quasi-parallel, trying to get a grip on the key feature which just doesn’t make sense to me (why particles emitted in the roof of a rocket or elevator seem to “run fast” compared to an observer sitting on the floor).
I feel if I could just get this, then I’d have a much deeper understanding. But the understanding I do have gives me two wrong answers: one, it shouldn’t work at all, or two, it’s always been there in the equations, and Newton should have discovered it, but simply didn’t because he didn’t think of it.
Hopefully I’ll get there. Wish me luck.
-the Centaur
Pictured: pound cake, almond milk, two general relativity textbooks, and buried between them the little black notebook where I’m trying to work all this out. Thanks, Albert.
