It is helpful to measure air pressure and allows you, if you can figure out how to use it properly, then allows you to figure out if a storm is coming. So it would be very helpful to people who predict the weather, weather forecasters. I am sure there are other reasons however I am not sure what they are yet.
radiation levels.
A barometer. Or a barograph, which is a barometer with it's pointer attached to a pen recorder, to see changes over time.
Air pressure is measured with a barometer.
Well, an aneroid barometer, is called an aneroid barometer- but, a barometer measures air pressure, and an aneroid barometer is a barometer that contains no liquid.
barometer has mercury inside it .
What is the civilian barometer test?
It was not used as a barometer.
The plural for barometer is barometers.
A mercury barometer.
A barometer measures atmospheric pressure.
A barometer is an instrument used to measure atmospheric pressure. A circle does not have a barometer!
The barometer measures atmospheric pressure.