Acoustic Holograms

Researchers can create complex patterns in air and water using ultrasonic waves. By placing 3D printed plates in front of speakers, they can levitate water droplets and propel small objects.
Source: nature video
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Acoustic Holograms, Sonic Tractor Beam, Acoustic Tweezers, Ultrasonic Waves, Holographic Technology, Futuristic Device, 3D Sound Holograms

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