A thermometer is a device that measures temperature or a temperature gradient (the degree of hotness or coldness of an object).
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Slide Rule
invented by William Oughtred
The slide rule is a mechanical analog computer. The slide rule is used…
Piano
invented by Bartolomeo Cristofori
The piano is an acoustic, keyboard and stringed musical instrument in which the…
Artificial refrigeration machine
invented by William Cullen
The term refrigeration means cooling a space, substance or system to lower…
lead chamber process
invented by John Roebuck
The lead chamber process was an industrial method used to produce sulfuric acid…
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