The Galileo barometer, invented by the Italian physicist and astronomer Galileo Galilei round 1643, is an easy but efficient system for measuring atmospheric stress. It consists of a glass tube, sealed at one finish, and crammed with a liquid, usually water or mercury. The open finish of the tube is positioned in a reservoir of the identical liquid, and the peak of the liquid within the tube is noticed.
The peak of the liquid within the tube is inversely proportional to the atmospheric stress. It is because the burden of the liquid within the tube is balanced by the drive exerted by the environment on the floor of the liquid within the reservoir. When the atmospheric stress will increase, the drive exerted on the liquid within the reservoir will increase, which causes the liquid within the tube to rise. Conversely, when the atmospheric stress decreases, the drive exerted on the liquid within the reservoir decreases, which causes the liquid within the tube to fall.
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