He would use it to measure air pressure.
The same as anyone else. Use it to find out the atmospheric pressure
The most commonly barometer used today would be a Aneroid.
A barometer does not measure temperature it measures pressure.
The barometer was rising so we thought it would be a good day for a picnic
A barometer using water,would need to be 13.6 times taller than a mercury barometer to obtain the same pressure difference. This is because mercury is 13.6 times more dense than water.
He would not have had a barometer. He would have had a glass tube stuck into a bowl of Mercury, with nothing in it. Because once the hole was made the vacuum would be gone and the mercury would fall back down to the bowl.It takes the vacuum in the tube to create a barometer.
Hunting would be a baron's prime interest.
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.
meteorologists use barometers
Usually the instrument used is called a barometer- which could be a closed end manometer or an aneroid barometer.An altimeter actually also measures atmospheric pressures - but for a different purpose.
Air pressure is measured with a barometer.
What would sunshine look like like if there were no sun? If the barometer was any good it would read zero. Many barometers are not designed to handle that sort of extreme.