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Meteorology |
Record 1 to 25 of 103 |
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Air Currents The upward air current in a thunderstorm.... |
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Air Currents The air currents in a thunderstorm.... |
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Air Currents "Directions of primary air currents (after ferrel)." -Waldo, 1896... |
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Air Currents, Lower "General hemispherical direction of horizontal (lower) air currents." -Waldo, 1896... |
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Air Currents, Upper "General hemispherical direction of horizontal (upper) air currents." -Waldo, 1896... |
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Anemometer "An instrument for indicating the velocity or pressure of the wind; a wind-gage."-Whitney, 1902... |
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Anemometer "An instrument for indicating the velocity or pressure of the wind; a wind-gage."-Whitney, 1902... |
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Anemometer, Robinson Cup The anemometer is an instrument used to measure the velocity of the wind.... |
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Aneroid Barometer "The principal part of the aneroid barometer is a cylindrical air-tight box of metal closed by a corrugated top of thin elastic metal. The air is exhausted from the box, which is then sealed. Evidentl... |
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Anticyclone "Direction of a whirl for...an anticyclone (Northern Hemisphere)." -Waldo, 1896... |
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Anticyclones A region of high pressure forming an anticyclone.... |
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Atmospheric Circulation "The inner circle incloses a map upon which the horizontal direction of the lower currents is shown by unbroken arrows, and that of the upper currents by broken arrows. The map is surrounded by a vert... |
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Barometer A homemade barometer made using a bottle.... |
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Barometer The simplest form of the weather barometer made with mercury.... |
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Barometer An instrument for determining the weight or pressure of the atmosphere, and hence the changes of the weather, or height of any ascent.... |
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Barometer "A Torricellian tube, firmly fixed to an upright support and properly graduated, constitutes a mercurial barometer. The zero of the scale is at the surface of the mercury in the cistern." — Av... |
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Barometer "The barometer is simply a pressure gauge that registers the pressure of the air. In this case the cup and tube at the bottom are protected by a brass or iron casing. At the top of the tube is a gradu... |
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Barometer "A glass tube about 33 inches in length, open at one end, is completely filled with mercury, and being firmly closed by the thumb, is inverted and placed vertically in a cup containing mercury. When ... |
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Barometer "A cistern barometer, being that generally seen in weather-glasses or ordinary barometers. The tube is bent at the bottom, and the cistern is merely an expansion of the lower end. Very generally, th... |
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Barometer An instrument used to measure atmospheric pressure.... |
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Barometer An instrument used to measure atmospheric pressure.... |
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Barometer "Suppose a to be a long tube, with the piston b so nicely fitted to its inside, as to work air tight. If the lower end of the tube be dipped into water, and the piston drawn up by pulling at the hand... |
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Barometer A standard mercury barometer has a glass column of about 30 inches in height, closed at one end, with an open mercury-filled reservoir at the base. Mercury in the tube adjusts until the weight of the ... |
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Barometer "Barometer, an instrument for measuring the pressure of the atmosphere, based on an experiment performed in 1643 by Torricelli, a pupil of Galileo." -Foster, 1921... |
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Barometer The barometer is used to measure atmospheric pressure.... |
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