Lectionary Calendar
Friday, November 22nd, 2024
the Week of Proper 28 / Ordinary 33
the Week of Proper 28 / Ordinary 33
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Bible Encyclopedias
Hypsometer
1911 Encyclopedia Britannica
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(Gr. 40s, height, Air pov, a measure), an instrument for measuring heights which employs the principles that the boiling-point of a liquid is lowered by diminishing the pressure, and that the barometric pressure varies with the height of the point of observation. The instrument consists of a cylindrical vessel in which the liquid, usually water, is boiled, surmounted by a jacketed column, in the outer partitions of which the vapour circulates, while in the central one a thermometer is placed. To deduce the height of the station from the observed boiling-point, it is necessary to know the relation existing between the boiling-point and pressure, and also between the pressure and height of the atmosphere.
Copyright Statement
These files are public domain.
These files are public domain.
Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Hypsometer'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/h/hypsometer.html. 1910.
Chisholm, Hugh, General Editor. Entry for 'Hypsometer'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/h/hypsometer.html. 1910.
