Hopping-Pong Redirects Ping Pong Balls Using Ultrasound Phased Arrays

Scientists at the University of Tokyo’s Shinoda & Makino Lab have designed an ultrasound phased array capable of changing the trajectory of a ping pong ball (PPB) in flight. While that doesn’t sound too interesting, the device has potential in many applications, including removing defective samples in food production, used in augmented sports, and changing the direction of an object thrown by humans, among a host of others.

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