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piezoelectric effect

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piezoelectric effect

Property of some crystals (for example, quartz) to develop an electromotive force or voltage across opposite faces when subjected to tension or compression, and, conversely, to expand or contract in size when subjected to an electromotive force. Piezoelectric crystal oscillators are used as frequency standards (for example, replacing balance wheels in watches), and for producing ultrasound. Crystalline quartz is a good example of a piezoelectric material.

The crystals are also used in phonograph pickups, transducers in ultrasonics, and certain gas lighters.
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The boulder, which was allegedly accidentally damaged by workmen in the park some time in the past, has a streak of quartz running through it, and some think this element occasionally creates an aura of light around the rock through the piezoelectric effect, whilst others claim the halo of the Greenstone has its origins in the supernatural.
The Greenstone Part Two; TALES FROM THE PAST by Liverpool Echo (Liverpool, England)
Ronson used the same Piezoelectric effect used in this machine, to create an igniter for lighters that transforms energy into an electric spark.
The History of the Cigar Lighter by Bryan Halverson / Reference and Education community
The nanogenerator power is produced by the piezoelectric effect, a phenomenon in which certain materials - such as zinc oxide wires - produce electrical charges when they are bent and then relaxed.
Nanogenerators produce electricity from jacket wearing hamsters by Asian News International
 
 
 
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