Levitate liquids and other tiny objects with this DIY device

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,...