How to Make a White Hole

You will need:

1) At water faucet.

2) Your kitchen sink.

Instructions:

Turn on your tap so there is a small but steady flow of water onto the surface of the sink. Gently adjust the steady flow of water until a circular disk forms. At the edge of the disk will be a lip of water, raised over the flow.

There! That’s it! A white hole!

You were expecting something more exotic perhaps?

A region of space where waves and particles can enter but not escape is a black hole. A region of space where waves and particles can escape but not enter is a white hole.

According to Technology Review, proof has been found that the lip, called a “hydraulic jump,” is mathematically equivalent to a white hole: the water flow going out of the disc, across the jump, is faster than the speed of the waves going in. The disc is a region of space where waves can escape, but not enter. It is a white hole.

Nice!

White Holes And Kitchen Sinks – Technology Review

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