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Philo of Byzantium is credited with the construction of the first thermoscope (or Philo thermometer), an early version of the thermometer. [6] It is also thought, but not certain, that Galileo Galilei discovered the specific principle on which the device is based and built the first thermoscope in 1593.
Philo of Byzantium [a] (Ancient Greek: Φίλων ὁ Βυζάντιος, Phílōn ho Byzántios, c. 280 BC – c. 220 BC), also known as Philo Mechanicus (Latin for "Philo the Engineer"), was a Greek engineer, physicist and writer on mechanics, who lived during the latter half of the 3rd century BC.
Fludd's figure of Philo's experiment. In the 3rd century BC, Philo of Byzantium documented his experiment with a tube submerged in a container of liquid on one end and connected to an air-tight, hollow sphere on the other. When air in the sphere is heated with a candle or by exposing it to the sun, expanding air exits the sphere and generates ...
1617 — Giuseppe Biancani published the first clear diagram of a thermoscope; 1624 — The word thermometer (in its French form) first appeared in La Récréation Mathématique by Jean Leurechon, who describes one with a scale of 8 degrees. [2] 1629 — Joseph Solomon Delmedigo describes in a book an accurate sealed-glass thermometer that uses ...
Leurechon was born in Bar-le-Duc where his father, also named Jean Leurechon, was a physician to the Duke of Lorraine. [1] He sent Leurechon to be educated at the Jesuit university in Pont-à-Mousson but, learning of Leurechon's desire to take holy orders [2] and wishing him instead to become a physician, [1] brought him back to Bar-le-Duc. [2]
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These early devices were called thermoscopes. The first sealed thermometer was constructed in 1654 by the Grand Duke of Tuscany, Ferdinand II . [ 1 ] : 19 The development of today's thermometers and temperature scales began in the early 18th century, when Daniel Gabriel Fahrenheit produced a mercury thermometer and scale, both developed by Ole ...
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