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Scientists Achieve Levitation Using Nothing But Sound.

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A team of researchers in Switzerland have developed a way of levitating and transporting small objects using nothing but sound.

Using ultrasonic waves – that is, sound waves whose frequency is too high for humans to hear – scientists at the Swiss Federal Institute of Technology in Zurich have made water droplets, instant coffee crystals, styrofoam flakes, and a toothpick, among other objects, hang in midair, move along a plane, and interact with each other.

It is the first time that scientists have been able to use sound to simultaneously levitate several objects next to each other and move them around.

Original Full article source: CSMonitor

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