It seems that galileo galilei an italian philosopher and mathematician born 1564 died 1642 was asked toward the end of his life to explain why water could not be raised in a suction pump more. He invented this barometer roughly 200 years before the aneroid model.

Evangelista Torricelli Italian Physicist And Mathematician Britannica

Mercury in the tube adjusts until the weight of it balances the atmospheric force exerted on the reservoir.

Who invented the mercury barometer. The word barometer took place in literature since then. A complete theory of how the barometer worked was developed by the french scientist blaise pascal. He realized that if air had vertical weight the pressure would be lower at higher altitudes.

The mercury barometer is the oldest type of barometer invented by the italian physicist evangelista torricelli in 1643. Torricelli built the first mercury barometer around 1644. A mercury barometer has a vertical glass tube closed at the top sitting in an open mercury filled basin at the bottom.

Barometer torricelli s work led to first speculations about atmospheric pressure and to the corollary invention of the mercury barometer from the greek word baros meaning weight the principle of which was described as early as 1631 by rené descartes although there is no evidence that descartes ever built such an instrument. Water is relatively light in weight so a very tall tube with a large amount of water had to be used in order to compensate for the heavier weight of atmospheric pressure. In 1646 he asked a relative to carry a barometer up a mountain and record the mercury height as he went.

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. High atmospheric pressure places more force on the reservoir forcing mercury higher in the column. Gasparo berti came up with the water barometer around the same time or two years before the mercury barometer was invented.

The barometer was invented three hundred years ago and work in connection with this invention is very interesting. The most common and probably the most used barometer in the world was invented by evangelista torricelli. How and who invented the barometer.

Torricelli conduct ed his first barometric experiments using a tube of water. The invention of the mercury barometer took place in approx. Evangelista torricelli other research evangelista torricelli also wrote on the quadrature of the cycloid and conics the rectifications of the logarithmic spiral the theory of the barometer the value of gravity found by observing the motion of two weights connected by a string passing over a fixed pulley the theory of projectiles and the motion of fluids.

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.