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The experiment uses a simple barometer to measure the pressure of air, filling it with mercury up until 75% of the tube. Any air bubbles in the tube must be removed by inverting several times. After that, a clean mercury is filled once again until the tube is completely full. The barometer is then placed inverted on the dish full of mercury.
The barometer arose from the need to solve a theoretical and practical problem: a suction pump could only raise water up to a height of 10 metres (34 ft) (as recounted in Galileo's Two New Sciences). In the early 1600s, Torricelli's teacher, Galileo, argued that suction pumps were able to draw water from a well because of the "force of vacuum."
A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather.
By around 1706, Fahrenheit was manufacturing and shipping barometers and spirit-filled thermometers using the Florentine temperature scale [d]. [6]: 116 In 1708, Fahrenheit met with the mayor of Copenhagen and astronomer, Ole Rømer, and was introduced to Rømer's temperature scale and his methods for making thermometers. Rømer told Fahrenheit ...
Gasparo Berti (c. 1600 – 1643) was an Italian mathematician, astronomer and physicist.He was probably born in Mantua and spent most of his life in Rome. [1] He is most famous today for his experiment in which he unknowingly created the first working barometer. [2]
Torricelli attracted considerable attention when he demonstrated the first mercury barometer to the general public. He is credited with giving the first modern explanation of atmospheric pressure. Scientists at the time were familiar with small fluctuations in height that occurred in barometers.
Louis Jacques Thénard (1777–1857) – discovered hydrogen peroxide and contributed to the discovery of boron [55] Leonardo Torres Quevedo (1852–1936) – Spanish civil engineer, inventor and mathematician who was a pioneer in automatic calculating machines and remote control. [56] Evangelista Torricelli (1608–1647) – inventor of the ...
Jean Nicolas Fortin (1750–1831) was a French maker of scientific instruments, born on 9 August 1750 [1] in Mouchy-la-Ville [2] in Picardy.Among his customers were such noted scientists as Lavoisier, [2] for whom he made a precision balance, [3] Gay-Lussac, [2] François Arago [2] and Pierre Dulong.