Online, or at a supermarket that sells tools.
Barometer
Quite possibly a barometer.
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.
A a radar is better: it can detect a tornado at a distance. A barometer would be of no use unless the tornado came dangerously close.
barometer has mercury inside it .
The same as anyone else. Use it to find out the atmospheric pressure
What is the civilian barometer test?
It was not used as a barometer.
The plural for barometer is barometers.
A mercury barometer.
A barometer is an instrument used to measure atmospheric pressure. A circle does not have a barometer!