Cellphone

Vibrations Sent From Smartphone Through Skeleton Unlock Door

Apr 25, 2012 | Black Technology

NEW YORK, NY — Brian Amento gripped the deadbolted door handle on the display next to him and with a click, the door unlocked at his touch. In his other hand, he was pinching a small metal disk called a piezoelectric transducer — like the ones used in guitar pickups —...

Vibrations Sent From Smartphone Through Skeleton Unlock Door

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