who invented the barometer
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● Evangelista Torricelli
= Evangelista Torricelli is the inventor of the barometer.
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Evangelista Torricelli or E Torricelli
The first mercury filled glass tube was generally accepted to have been invented in 1643 by Torricelli, which became known as Torricelli's mercury barometer. In this he produced a vacuum by filling a glass tube with mercury, inverting it and then submerging the open end in a vessel of mercury.
When the mercury level lowered, the weather turned poor. When the mercury rose, the weather became fair. This experiment created the first barometer. In 1646 the French scientist Blaise Pascal used Torricelli's barometer to test his theory that air has different weight at different heights.
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