Of course Styrofoam floats on water, but have you ever seen it float in midair? That’s exactly what Julius Kramer’s 3D-printed acoustic levitator does, using an array of 72 40kHz ultrasonic transducers to form standing waves of low and high pressure. When turned on, he’s able to simply insert a tiny foam ball which hovers […]
If you’ve ever wished you could levitate tiny drops of liquid, small solids, or insects in mid-air, new research has you covered. That’s because Asier Marzo, Adrian Barnes, and Bruce W. Drinkwater have developed a 3D-printed, Arduino Nano-controlled acoustic levitator. Their device uses two arrays of 36 sonic transducers in a concave pattern, which face each other in […]
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