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Torricelli's demonstration of the effect of atmospheric pressure on a column of liquid, 1643 (1873). Artist: Unknown

Evangelista Torricelli's demonstration of the effect of atmospheric pressure on a column of liquid, 1643 (1873). Torricelli (1608-1647), Italian physicist and mathematician, showed that the height of a column of liquid is governed by atmospheric pressure and that the height of the column is directly proportional to the density of the liquid. Water will rise to 9.75m (32 feet) but mercury, which is approximately 13.5 times denser, will only rise to .736m (29 ins). A metre (3 feet) tube is filled with mercury and the open end placed in a dish of mercury. The liquid will fall in the tube until the weight of the column is in equilibrium with atmospheric pressure. From The Atmosphere by Camille Flammarion. (London, 1873).

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Titre: Torricelli's demonstration of the effect of atmospheric pressure on a column of liquid, 1643 (1873). Artist: Unknown

Légende: Voir la traduction automatique
Evangelista Torricelli's demonstration of the effect of atmospheric pressure on a column of liquid, 1643 (1873). Torricelli (1608-1647), Italian physicist and mathematician, showed that the height of a column of liquid is governed by atmospheric pressure and that the height of the column is directly proportional to the density of the liquid. Water will rise to 9.75m (32 feet) but mercury, which is approximately 13.5 times denser, will only rise to .736m (29 ins). A metre (3 feet) tube is filled with mercury and the open end placed in a dish of mercury. The liquid will fall in the tube until the weight of the column is in equilibrium with atmospheric pressure. From The Atmosphere by Camille Flammarion. (London, 1873).

Personnalités: CAMILLE

Crédit: Album / Oxford Science Archive / Heritage Images

Autorisations: ? Autorisation de modèle: Non - ? Autorisation de propriété: Non
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Taille de l'image: 4273 × 4087 px | 50.0 MB

Taille d'impression: 36.2 × 34.6 cm | 1682.3 × 1609.1 in (300 dpi)

Mots clés: BAROMETRE • CAMILLE • DEMONSTRATION • DENSITÉ • EXPERIENCE • EXPERIENCES • EXPERIMENTATION • ITALIE • MONOCHROME • NOIR ET BLANC • PILIER • PREPARATION D'EXPERIENCE • PRESSION ATMOSPHERIQUE • PRESSION • SCIENCE: EXPERIENCES