Cosmology is timeless, perhaps literally—as this post argued on January 23, 2015. In the 1992 documentary A Brief History of Time, Stephen Hawking describes what we would see if we were observing an astronaut nearing a black hole’s event horizon—the barrier beyond which gravitation is so great that not even light can escape. He invites […]
general relativity
Dear LWON readers, I’d like to ask you a question. Twice recently I’ve written about properties of black holes that blow my mind. In each instance, my inspiration was a detail from a movie. First was Interstellar. The great gravitational grip of the black hole in that movie, as is the case for all black holes, distorts […]
Ok, so y’all know about how, in general relativity, gravity slows time. Clocks closer to something massive and more strongly attracted to it run slower. And clocks farther away and less attracted run faster. I’d explain this to you in more detail but I’m busy. Anyway, AG can use the different times on his different […]
I was going to explain the connection between gravity, general relativity, and time. But I understand less than half of it and anyway, that’s not what our boy AG is really talking about here. He’s talking about coming to grand conclusions based on understanding less than half of something. And the guy he’s quoting, […]