Lectionary Calendar
Sunday, December 22nd, 2024
the Fourth Week of Advent
the Fourth Week of Advent
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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.
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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.
