Spanish/UK Researchers Invent Acoustic Tractor Beam

Holographic models of tractor beam

Pictures of one-sided levitation in mid-airSmithsonian reports: “…a device built by a team in Spain and the U.K. can levitate and manipulate small objects in air, and possibly in water and human tissue, using high-frequency sound waves. The technology holds promise in a variety of fields ranging from medicine to space exploration.”

Nature Communications: “Holographic acoustic elements for manipulation of levitated objects.”


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