Three-Dimensional Mid-Air Acoustic Manipulation

Tech demo of setup able to levitate, control and maneuver small light objects in a 3D space using ultrasound waves, defying gravity.The essence of levitation technology is the countervailing of gravity. It is known that an ultrasound standing wave is capable of suspending small particles at its sound pressure nodes and, so far, this method has been used to levitate lightweight particles, small creatures, and water droplets. More Here

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