The discovery of piezoelectricity.

definition

The piezoelectric effect is the ability of certain solid materials (crystals, certain ceramics and even biological matter such as bone, DNA and certain proteins) to generate a voltage when subjected to mechanical stress and vice versa.

DISCOVERY
  • In 1880, the French physicists and brothers Paul-Jacques Curie and Pierre Curie demonstrated the generation of an electric potential when compressing tourmaline and quartz crystals.
  • Tin sheets were attached to the top and bottom of a crystal and the crystal subjected to pressure; once compressed, a voltage was created that was detected by a voltmeter because of the tin sheets. When released, an inverse voltage was created.

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discoverers
  • Here is a photograph of Paul-Jacques Curie:

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(1855-1941)

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  • And here is one of Pierre Curie:

[ux_image_box img=”521″ image_width=”30″ link=”https://en.wikipedia.org/wiki/Pierre_Curie” target=”_blank”]

(1859-1906)

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