Acoustic levitation

voir la vidéoLevitation of an acrylic disk 5mm thick x 10mm in diameter via acoustic ultrasonic radiation from a piezoelectric transducer in water. The levitation is due to the powerful acoustic radiation force, and can be manipulated to rotate the object at high speeds. It also works in air [ go to Youtube.com ]

Time : 5 min 16
Added : 27/03/07 11:51
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