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Encyclopedia Britannica - Main :: PYR-RAY |
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PYROMETER (Gr. iri p, fire, Erpov, a measure) , an instrument for measuring high temperatures. The term
instrument wherein the expansion of a metal rod measured the temperature. Discontinuous thermoscopes, depending on the fusion of a metal or salt, are also employed. Prinsep prepared a series of alloys of silver and gold, and of gold and platinum , whose melting points, as determined by accurate instruments
fair
idea of the temperature was obtained. Carnelley and Williams employed certain salts of known melting point; whilst the Seger's cones, employed in porcelain
THERMOMETRY for scientific forms.)End of Article: PYROMETER (Gr. iri p, fire, Erpov, a measure) If you wish, you can link directly to this article.
<a href="http://jcsm.org/StudyCenter/Encyclopedia/PYR_RAY/PYROMETER_Gr_iri_p_fire_Erpov_.html"> PYROMETER (Gr. iri p, fire, Erpov, a measure) </a> |
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