In this work, we demonstrate the ability of lysozyme amyloid protein fibrils to possess piezoelectric capabilities when assembled into a freestanding bulk material. We transformed hen egg white ...

Not so, if you use a pair of specialised ultrasonic transducer arrays to move the air instead! (Video, embedded below) Three banks of thrusters provide a 180 degree steerable net force Details are ...

The transducer is then simply placed on the metal shelf. The two piezo pickups are placed on either end of the shelf, with one going to the right channel of one input, the other going to the left ...