Atmospheric pressure - Wikipedia
Atmospheric pressure, also known as air pressure or barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit …
How Is Barometric Pressure Measured and Why? - HowStuffWorks
2024年2月27日 · Barometric pressure is a measurement of the air pressure in Earth's atmosphere. For this reason, it is also known as atmospheric pressure. The pressure is …
What does it mean when a barometer is rising or falling?
Barometers are used to predict the weather. A barometer measures air pressure: A "rising" barometer indicates increasing air pressure; a "falling" barometer indicates decreasing air …
Barometer - Wikipedia
A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather. Many …
The Basics of Barometric Pressure: Understanding the Weather …
2023年12月5日 · In this comprehensive guide, we will explore the fundamentals of barometric pressure, its measurement, effects on weather, and its significance in everyday life. …
Atmospheric pressure | Definition, Measurement, & Variations
Atmospheric pressure can be measured with a mercury barometer (hence the commonly used synonym barometric pressure), which indicates the height of a column of mercury that exactly …
Barometric pressure Definition & Meaning - Merriam-Webster
2024年8月10日 · The meaning of BAROMETRIC PRESSURE is the pressure of the atmosphere usually expressed in terms of the height of a column of mercury.
Barometer | Definition, Types, Units, & Facts | Britannica
2024年11月7日 · barometer, device used to measure atmospheric pressure. Because atmospheric pressure changes with distance above or below sea level, a barometer can also …
Barometer - Education | National Geographic Society
2023年10月24日 · A barometer is a scientific instrument used to measure atmospheric pressure, also called barometric pressure. The atmosphere is the layers of air wrapped around Earth. …
Barometric Definition & Meaning - Merriam-Webster
The meaning of BAROMETER is an instrument for determining the pressure of the atmosphere and hence for assisting in forecasting weather and for determining altitude. How to use …