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A mercury barometer is an instrument used to measure atmospheric pressure in a certain location and has a vertical glass tube closed at the top sitting in an open mercury-filled basin at the bottom. Mercury in the tube adjusts until the weight of it balances the atmospheric force exerted on the reservoir.
The mercury barometer is the oldest type of barometer, having been invented in 1643–44 by the Italian physicist and mathematician Evangelista Torricelli. In its simplest form, it comprises a narrow glass tube closed at one end and open at the other end, which is submerged in a pool of mercury.
3 Jul 2022 · The simplest kind of barometer is a tall closed tube standing upside down in a bath of mercury (a dense liquid metal at room temperature) so the liquid rises partly up the tube a bit like it does in a thermometer. We use mercury in barometers because it's more convenient than using water.
A basic mercury thermometer is a precisely crafted piece of tube-shaped glass enveloping a mercury-filled reservoir connected to an extremely thin channel, called the capillary bore, that provides a chamber the mercury from the reservoir can expand into.
Inches of Mercury (inHg): This unit is derived from the use of mercury in barometers, where atmospheric pressure is measured by the height of a mercury column. Standard atmospheric pressure is equivalent to 29.92 inches of mercury.
3 Jul 2019 · How the Classic Mercury Barometer Works. The classic mercury barometer is designed as a glass tube about 3 feet high with one end open and the other end sealed. The tube is filled with mercury. This glass tube sits upside down in a container, called the reservoir, which also contains mercury.
An introduction to using a Mercury Barometer, also known as a Fortin Barometer. Requires Flash; uses videos in RealMedia, QuickTime or mpeg format.
24 Okt 2023 · Mercury Barometer The mercury barometer is the oldest type of barometer, invented by the Italian physicist Evangelista Torricelli in 1643. Torricelli conducted his first barometric experiments using a tube of water.
Pressure and the simple mercury barometer. Unpack the unique properties of gases, their kinetic energy, and their ability to exert pressure on surroundings. Understand the connection between temperature, force, and pressure in gases. Learn about atmospheric pressure and its measurement using a barometer.
The Mercury Barometer. In this document we discuss measuring atmospheric pressure using a Mercury Barometer. This instrument is also known as a Fortin Barometer. This type of instrument was first used by Torricelli in 1643; Fortin slightly modified the original design in 1810.
