| Guillaume Amontons |
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| 1663 births | |
| amontons, guillaume | |
| 1705 deaths | |
| french inventors | |
| french physicists | |
| people with craters of the moon named after them | |
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LIFE Guillaume was born in Paris, France . His father was a Lawyer from Normandy who had moved to the French capital. While still young, Guillaume Lost His Hearing , which may have motivated him to focus entirely on Science . He never attended a University , but was able to study Mathematics , the Physical Sciences , and Celestial Mechanics . He also spent time studying the skills of Drawing , Surveying , and Architecture . He died in Paris , France . WORK He was supported in his research career by the Government , and was employed in various Public Works projects. Scientific instruments Among his contributions to scientific instrumentation were improvements to the Barometer ( 1695 ), Hygrometer ( 1687 ), and Thermometer ( 1695 ), particularly for use of these instruments at sea. He also demonstrated an Optical Telegraph and proposed the use of his Clepsydra ( Water Clock ) for Keeping Time On A Ship At Sea . Thermodynamics Amonton investigated the relationship between Pressure and Temperature in Gas es though he lacked Accurate And Precise Thermometer s. Though his results were at best semi- Quantitative , he established that the pressure of a gas increases by roughly one-third between the temperatures of ''cold'' and the Boiling Point of Water . This was a substantial step towards the subsequent Gas Laws and, in particular, Charles's Law . His work led him to speculate that a sufficient reduction in temperature would lead to the disappearance of pressure. Thus, he is the first researcher to discuss the concept of an Absolute Zero of temperature, a concept later extended and rationalised by William Thomson, 1st Baron Kelvin . Friction In 1699 , Amontons published his rediscovery of the laws of Friction first put forward by Leonardo Da Vinci . Though they were received with some scepticism, the laws were verified by Charles-Augustin De Coulomb in 1781 . HONOURS
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