Evangelista Torricelli
Italian physicist and mathematician (1608-1647) · Italy · Scientists · Died at 39
Evangelista Torricelli is read about 329 times a day, in 85 languages.
A typical day, 30 days to 15 October 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 390 days, one point a day.
Something wrong?He built the first barometer - not just a weather gadget, but proof that air has weight and the void above it isn't impossible. That 1643 tube of mercury broke two thousand years of Aristotle and handed science a tool it still uses.
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Photos 8
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Evangelista Torricelli by Lorenzo Lippi (circa 1647, Galleria Silvano Lodi & Due)
1959 CPA 2279
Baro 1
Bourg-en-Bresse - Place de l'Hôtel-de-Ville - Hôtel de ville - Plaque Baromètre selon Torricelli
Demonstration of Torricelli pump at Questacon 1
Demonstration of Torricelli pump at Questacon 2.jpg?width=1200)
El mundo físico, 1882 "Experimento de Torricelli - efecto de la gravedad atmosférica". (4031746654).jpg?width=1200)
Evangelista Torricelli (stampa artistica)About this person
Born 15 October 1608, Torricelli studied under Benedetto Castelli and made his name young in mathematics and physics. In 1643 he inverted a glass tube filled with mercury into a dish and watched it settle at a fixed height - the column held up by atmospheric pressure, the space above it a vacuum. The experiment answered why water pumps failed past a certain depth and introduced the barometer to the world. He also advanced optics and contributed to the method of indivisibles, a precursor to calculus. He died 25 October 1647, nine days past his thirty-ninth birthday; the unit of pressure, the torr, carries his name.
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