they are used all over the world
mercury barometers and aneroid barometers both measure air pressure.
Historical, both thermometers and barometers have used mercury.
because they are too large and clumsy to be used as altimeters so there replaced by aneroid
in thermometers, barometers, fluorescent lamps and batteries.
It's a useful instrument for detecting weather. It measures air pressure.
Mercury is used in thermometers barometers and flourescent lightbulbs.
Digital barometers, much like analog barometers, are used to forecast the weather using humidity, air pressure, and dew point. This answer needed a few more characters.
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Mercury
They are more portable and can be used for airplane equipment
There are two types of barometers, Mercury barometers and then Aenroid barometers.
Some of the weather equipment are: Radars, Barometers, Thermothers, and Rain Gauges. This is just some of many and the world advances.
The pressure of air.
it measure the atmosphere.
mercury
Barometers are used to measure pressure.
mercury barometers and aneroid barometers both measure air pressure.