• Pebble splashes can produce sound of supersonic jet

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      24th Jan 10
      ANI
    London, Jan 25 (ANI): A pebble, if dropped in water, creates an air-filled cavity that ejects air at supersonic speeds, researchers the University of Twente in the Netherlands have found. Stephan Gekle and his colleagues used high-speed photography, and spotted a cavity of air forming in an hourglass shape - with the top of the hourglass [...]
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