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The first barometer was made by the Italian physicist Torricelli in about 1640.
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Sabattus Maine USA
barometer
Air pressure is measured with a barometer.
Mercury barometer - invented by Evangelist Torricelli (1608) barometer Aneroid barometer - invented by Lucien Vidie in 1843 Cassegrain telescope thermometer pendulum clock
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 .
Actually a barometer can be made of just about any liquid with a sufficiently low vapour pressure. For example, most people don't realize that their toilet acts as a barometer. Traditionally barometers were made with Hg, but they could be made with just about any liquid with a low VP.
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.
The barometer measures atmospheric pressure.
A barometer is an instrument used to measure atmospheric pressure. A circle does not have a barometer!