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Forgive my physics ignorance here, but black holes can suck in matter by becoming arbitarily more dense. This isn't possible for such sinkholes, so how can they
by calcsam 13y ago
Forgive my physics ignorance here, but black holes can suck in matter by becoming arbitarily more dense. This isn't possible for such sinkholes, so how can they suck in stuff without expanding?
- davorak 13y ago> but black holes can suck in matter by becoming arbitarily more dense. This isn't possible for such sinkholes Correct but this is not the behavior which the sinkholes are mimicking. With out having read the article the behavior that is probably being mimicked by the sink holes is while the sink hole is active the sound waves can not escape, similar to how light does not escape the event horizon of the black hole. Their are laboratory experiments that mimic similar behavior in fluids to study such physical phenomena as well.
- damian2000 13y agoI think they refer to areas of water that are basically still, not moving sort of like the eye of a hurricane. > they are essentially independent of their environment, surrounded by a seemingly impenetrable boundary and with little, if any, of the fluid inside them leaking out.
- madaxe 13y agoThe two-dimensional horizon of the gyre on the water's surface does expand, slowly, and is analogous to the three dimensional event horizon of a black hole. That is to say, the portion of the gyre which extends below the water, which is not visible to us, is analogous to the hyper (or hypo, depending on your frame) dimensional interior of a black hole.