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Geography Categories
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| Definition Of: |
INCHES OF MERCURY (Hg)
The name comes from the use of mercurial barometers which equate the height of a column of mercury with air pressure. One inch of mercury is equivalent to 33.86 millibars or 25.40 millimeters. First devised in 1644 by Evangelista Torricelli (1608-1647), an Italian physicist and mathematician, to explain the fundamental principles of hydromechanics. Related term: barometric pressure
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Meteorology & Weather Dictionary INDEX:
List of Terms: Terms beginning with "A", Page 1 |
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Page Number:
1 2 A: Page 1 of 2.
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