Torricellian vacuum

British  

noun

1. the vacuum at the top of a Torricellian tube

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Etymology

Origin of Torricellian vacuum

C17: named after E. _Torricelli

Example Sentences

The latter showed that the Torricellian vacuum was not essential to the phenomenon, for the same glow was apparent when mercury was shaken with air only partially rarefied.

From Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 "Banks" to "Bassoon" by Various

This method was developed by Hofmann in 1868, who replaced the short tube of Gay-Lussac by an ordinary barometer tube, thus effecting the volatilization in a Torricellian vacuum.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 "Demijohn" to "Destructor" by Various

The vacancy at the summit of the barometer is termed the Torricellian vacuum, and the exhausted receiver of an air pump the Boylean vacuum, in honour of these two philosophers.

From The Botanic Garden A Poem in Two Parts. Part 1: the Economy of Vegetation by Darwin, Erasmus

Being 30 inches long up to the bottom of the expanded portion, or lamp globe, the mercury fell below this and left a Torricellian vacuum there.

From Scientific American Supplement, No. 344, August 5, 1882 by Various

In reference to the Torricellian vacuum, he says, 'Perhaps it is hardly necessary for me to state that I find both iron and bismuth in such vacua perfectly obedient to the magnet.

From Faraday as a Discoverer by Tyndall, John