Search results
Learn how the mercury barometer, invented by Torricelli in 1643, measures atmospheric pressure with a column of mercury. Find out how Pascal, Perier, and others improved and used the device, and why it is no longer widely available due to mercury's toxicity.
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.
Oct 24, 2023 · 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. 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 ...
Learn about barometer, an instrument to measure air pressure, and its two types: mercury and aneroid. Find out how to make a barometer at home and how it helps predict weather.
- 7 min
- A barometer is an instrument used to measure the air pressure as it varies with distance, either above or below sea level.
- Italian scientist Evangelista Torricelli invented the instrument in the year 1643.
- The working of a barometer depends on balancing mercury weight in the glass tube with respect to the atmospheric pressure.
- There are two types of barometers namely: mercury barometer and aneroid barometer.
- Mercury barometers are commonly used.
Feb 15, 2022 · A mercury barometer is an atmospheric pressure measuring instrument based on the displacement of mercury in a glass tube. It is also called the mercury manometer. In short, a mercury barometer is used to measure the pressure exerted by the atmosphere at a given place.
Learn how to measure atmospheric pressure using a mercury barometer, a device that consists of a tube filled with mercury and inverted into a dish of mercury. Explore the properties and behavior of gases, their kinetic energy, and their ability to exert pressure on surroundings.
- 8 min
- Ryan Scott Patton
Jul 3, 2022 · Learn about the history and types of barometers, instruments that measure air pressure. Find out how air pressure varies with height, temperature, and weather conditions, and how to use a mercury barometer to forecast the weather.
