A barometer is a device used to measure atmospheric pressure. If pressure is high (good weather), then pressure on the barometer will exceed 1000 millibars. If the pressure is low (bad weather), then the pressure reading on the barometer will be below 1000 millibars.
A barometer is a weather tool used to measure air pressure.
A barometer is an instrument used to measure the weight of the air pressing down on the earth's surface which is known as air pressure.
Some of the weather equipment are: Radars, Barometers, Thermothers, and Rain Gauges. This is just some of many and the world advances.
They allowed scientists to measure pressure.
thermometers, wet-dry bulbs and barometers
A barometer is a weather tool that shows you air presser.
Barometers measure air pressure.
There are two types of barometers, Mercury barometers and then Aenroid barometers.
mercury barometers and aneroid barometers both measure air pressure.
Mercury and aneroid barometers.
anaeriod barometer and a mercury barometer
Many do, but not all. Most barometers that people would have in their homes are aneroid barometers, which don't contain any mercury.
Pilots use barometers to see the air pressure from the plane.
They are more portable and can be used for airplane equipment
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.
t
predict weather
Mercury
pilots use barometers because they don't want to crash because of the air pressure might be high