Said to be virtually silent and one-twelfth the weight and one-fifth the size of standard electromagnetic miniature motors, Elliptec motors use a piezoelectric element to generate high-speed, ...
Before humans discovered ultrasound for a variety of medical, technical and military applications, nature had perfected it over millions of years for navigation under and above water. Dolphins and ...
Download this article in PDF format. Jacques and Pierre Curie, French physics, discovered the piezoelectric effect in 1880. When some solid material is mechanically compressed or stressed, the ...
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