Word: piezo
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...being touted as the world's first eco-club on July 10 in London. And as the dancers get pumped up, Club Surya will get powered up. Literally. The dance floor is designed to harness the energy of the people stomping on it based on a principle called piezoelectricity. Piezo, Greek for pressure, uses crystals or other materials that, when compressed, give off a small amount of voltage. So as clubbers dance on the spring-lined floor, the crystal blocks beneath it acquire a charge and generate a current that can charge nearby batteries...
...action of a high-voltage field. The electric field was obtained by the use of the 100,000-volt storage battery belonging to the laboratory and the timing of the electron was accomplished by a short wave oscillator. The frequency of the oscillator was obtained by the use of piezo-electric standards of frequency which were also developed in the laboratory and have come into great importance commercially in the control of the wave lengths of radio transmitting stations. From the measurements of electron velocity Professor Chaffee and Miss Perry have obtained an accurate value of the physical constant...
...Piezoelectricity (piezo, Greek to press), discovered by the Curies a half-century ago, is generated when pressure is applied to a pyroelectric crystal (one in which a temperature change produces a state of electric polarity). In the piezo effect the amount of electricity freed is proportional to the pressure applied. First pyroclectric crystal discovered: tourmaline...
...Cruft Laboratory, at 5 o'clock this afternoon, Mr. P. S. Bauer of the Engineering School, will give a lecture on "Piezo-electric Effect and its Application to Radio-Frequency Oscillators." The lecture is being held under the auspices of the Communication Engineering Colloquium and is open to all members of the University...
Professor Pierce will give a lecture at the Physical Colloquium this afternoon at 3 o'clock in the Jefferson Physical Laboratory. His subject will be "Piezo-electric Crystal Oscillators". The lecture is open to the public...