Black Holes in the Bathtub

If you stuck your hand inside a black hole recently created in a Canadian laboratory, you wouldn’t get sucked in like a string of spaghetti. You’d just get wet.

This black hole exists in a water tank, its forces afflicting water waves rather than unsuspecting space travelers. Technically this bathtub version is a white hole, an inverted black hole that keeps waves out rather than sucking them in. But the w