Barometer

Science / Weather / Barometer: An instrument used to measure atmospheric pressure. Two examples are the aneroid barometer and the mercurial barometer.

Mercurial Barometer

Science / Weather / Mercurial Barometer: An instrument used for measuring the change in atmospheric pressure. It uses a long glass tube, open at one end and closed at the other. After first filling the open end with mercury, it is then tempo MORE

Inverse Barometer Effect

Science / Tides and Currents / Inverse Barometer Effect: The inverse response of sea level to changes in atmospheric pressure. A static reduction of 1.005 mb in atmospheric pressure will cause a stationary rise of 1 cm in sea level. MORE

Aneroid Barometer

Science / Weather / Aneroid Barometer: An instrument for measuring the atmospheric pressure. It registers the change in the shape of an evacuated metal cell to measure variations on the atmospheric pressure. The aneroid is a thin-walled me MORE

January Barometer

Business / Finance / January Barometer: A statistic from 'The Stock Traders Alamanac' reflecting, with 88% accuracy, that the overall stock market rises in a year when the S&P is up in the month of January and drops when the index for that MORE

Pressure Altimeter

Science / Weather / Pressure Altimeter: An aneroid barometer calibrated to indicate altitude in feet instead of units of pressure. It is read accurately only in a standard atmosphere and when the correct altimeter setting is used. MORE

Barograph

Science / Weather / Barograph: An instrument that continuously records a barometer's reading of atmospheric pressure. MORE

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