Guillaume Amontons

Guillaume Amontons

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Guillaume Amontons (1663-1705) was an experimentalist who devoted himself to the improvement of instruments Walkie Talkies employed in physical experiments, particularly the barometer, and the thermometer.Of special note are a folded barometer, a cisternless barometer to be used at sea, and a hygrometer of his invention.He experimented with an air-thermometer and pointed out that the extreme cold of such a thermometer would be that which reduced the spring of the air (pressure) to nothing, thus being the first to recognize that the use of air as a thermometric substance led to the inference of the existence of a zero of temperature.During his studies on the behavior of air he established Bertazzoni P905LPROX Gas Hob Stainless Steel 90cm LPG Convertible that at constant volume the pressure varied inversely to the temperature.He devised an external-combustion machine and was among the first to study problems due to friction in machines (Amontons-Coulomb laws).