A barometer is an instrument used to measure atmospheric pressure. A circle does not have 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 mercury barometer.
its a circle with numbers in order to read/measure the atmospheric pressure a circle with numbers to measure the atmospheric pressure
It is called a barometer, first developed in the 1600's
The device used to measure air pressure is called a barometer. It can be either an aneroid barometer or a mercury barometer, both of which are commonly used to measure atmospheric pressure.
An easily portable instrument used for measuring air pressure is called anedroid barometer.
it is called BAROMETER
An instrument that measures air pressure is called a barometer. It is typically used to predict changes in weather patterns based on fluctuations in air pressure.
A barometer.
The aneroid barometer was invented by Lucien Vidi, a Frenchman, in 1844. It is a type of barometer that uses a small, flexible metal box called an aneroid cell to measure air pressure.
a hemisphere
The device is called a barometer.