Category:Torricellian

Tor`ri*cel"li*an, a.

Defn: of or pertaining to torricelli, an italian philosopher and Mathematician, who, in 1643, discovered that the rise of a liquid in A tube, as in the barometer, is due to atmospheric pressure. See Barometer. Torricellian tube, a glass tube thirty or more inches in Length, open at the lower end and hermetically sealed at the upper, Such as is used in the barometer. -- torricellian vacuum (physics), a vacuum produced by filling with A fluid, as mercury, a tube hermetically closed at one end, and, After immersing the other end in a vessel of the same fluid, allowing The inclosed fluid to descend till it is counterbalanced by the Pressure of the atmosphere, as in the barometer. Hutton.