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Science

Modeling a White Hole With Your Kitchen Sink 104

Posted by Soulskill
from the fancy-equipment-is-for-wimps dept.
jamie passes along this excerpt from Wired: "That ring of water in your kitchen sink is actually a model white hole. For the first time, scientists have shown experimentally that liquid flowing from a tap embodies the same physics as the time-reversed equivalent of black holes. When a stream of tap water hits the flat surface of the sink, it spreads out into a thin disc bounded by a raised lip, called the hydraulic jump. Physicists’ puzzlement with this jump dates back to Lord Rayleigh in 1914. More recently, physicists have suggested that, if the water waves inside the disc move faster than the waves outside, the jump could serve as an analogue event horizon. Water can approach the ring from outside, but it can’t get in."
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Modeling a White Hole With Your Kitchen Sink

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  • Re:Um, No (Score:5, Interesting)

    by phlegmofdiscontent (459470) on Sunday October 17, 2010 @02:50AM (#33922296)

    I think this just illustrates the elegance of the universe. For many different scales, the same mathematics get reused, whether it's a theoretical white hole or a hydraulic jump in a kitchen sink. Another example which may be similar is the edge of our solar system, the heliopause. In a very similar way, high-speed solar wind particles prevent a lot of particles from outside from entering the inner solar system. Like the hydraulic jump in a kitchen sink, the heliopause is where the speed of the outgoing particles reaches the speed of sound of the medium in which it is traveling.

  • Re:gay hole (Score:0, Interesting)

    by Anonymous Coward on Sunday October 17, 2010 @04:50AM (#33922702)

    What's redundant is insecure Windows users constantly trolling.

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