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Neat News 2019-108 (added 2019-04-18)

Laser for sound

levitation.jpg
© Peter Nussbaumer [CC BY-SA 3.0]

Lasers are everywhere and play an important role in modern life. They are based on light waves. Now an analogous invention has been made for sound waves. The new approach allows it to be applied for levitation of a range of objects, from a single electron to small organisms.

News seen at: ScienceDaily - Top Physical/Tech

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