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SlideshowReport

A Mercury Barometer

Description
Units of measurement
Inches of mercury – standard sea-level pressure is 29.92 inches of mercury

Instruments for measuring
Mercury barometer
Invented by Torricelli in 1643
Uses a glass tube filled with mercury barometer
Aneroid barometer
“Without liquid”
Uses an expanding chamber
Barograph (continuously records the air pressure)
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