Re: Try as I might, I still can't conceptualise/visualise gravity waves
I know, right? It all seems more like philosophy than physics.
Scientists seem to like to refer to space with words we usually use to describe liquid. Matter is furiously spinning, tiny little whirlpools of -- something. Something that is, and also is not nothing. Except it's not those 2 1/2 dimensional whirlpools you get in water. They're 3 1/2 dimensional whirlpools. Something you can't actually imagine, but you can do math with.
Get enough of those whirlpools, and you get a big whirlpool. And those big whirlpools stuck stuff in. Except there's no stuff, just the liquid. Which isn't a liquid. Since all stuff is just whirlpools, the stuff it sucks in is other whirlpools. Crash a couple really, really, big whirlpools together, and you get a shock wave that travels out through the nothingness that isn't nothingness, nor is it a liquid.
It's just one holy psychedelic fever dream.