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Barometer - Wikipedia, the free encyclopedia
A barometer is an instrument used to measure atmospheric pressure. It can measure the pressure exerted by the atmosphere by using water, air, or mercury.
A barometer is a type of manometer. A document on manometers may be accessed by clicking on the blue button to the right; it will appear in a separate window.
The mercury barometer can be used for absolute measurement of pressure, independently of any standard, but for this purpose careful attention must be paid to sources of inaccuracy.
Antique barometers and clocks restored. They are also bought and sold bought and sold. French mercury pendulum vials. Mercury barometer tubes.
mercury barometer definition | Dictionary.com
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