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Atmospheric pressure


edit]. An important application of the knowledge that atmospheric pressure varies directly with altitude was in ...

Measuring Atmospheric Pressure - Windows to the Universe


Jun 11, 2010 ... Let's look at how atmospheric pressure is measured. For a long time, atmospheric pressure has been measured by a mercury barometer.



The atmospheric pressure is the weight exerted by the overhead atmosphere on a unit area of surface. It can be measured with a mercury barometer, consisting ...

Atmospheric Pressure - HyperPhysics


Since static fluid pressure is determined by the fluid density and depth, the depth or height ... The standard atmospheric pressure is measured in various units: ...

Definition: The pressure on the Earth's surface caused by the weight of the air in the atmosphere. At sea level, this pressure is 14.7 psi at 32OF (101 kPa at O"C). © 2000 - 2002 Vincent T. Ciulla More »



The basic unit for atmospheric pressure measurements is the pascal (Pa) (or ... for measuring atmospheric pressure if they meet the following requirements:.

Barometers measure Atmospheric Pressure - YouTube


May 3, 2013 ... How an old fashioned mercury barometer measures barometric pressure. (a.k.a. atmospheric pressure).

Understanding air pressure - USATODAY.com


Air pressure is also called barometric pressure because barometers are used to measure it. ... Scientists generally use hectopascals to measure air pressure.

atmospheric pressure - National Geographic Education


An atmosphere (atm) is a unit of measurement equal to the average air pressure at sea level at a temperature of 15 degrees Celsius (59 degrees Fahrenheit).

Chapter 5 Measurement of Atmospheric Pressure


5.2 Principle of Atmospheric Pressure Measurement ··················································· ··································· 1. 5.2.1. Mercury Barometer ...

Popular Q&A
Q: What measures atmospheric pressure?
A: A Barometer measures atmospheric pressure. Read More »
Source: wiki.answers.com
Q: How to measure atmospheric pressure?
A: Use a domestic Barometerwhich has an air chamber which responds to the air pressure, and moves a pointer which, like the minute hand on a clock, points to numbe... Read More »
Source: wiki.answers.com
Q: What measures atmospheric pressure?
A: Atmospheric pressure is defined as air pressure, or more specifically, the Read More »
Source: www.chacha.com
Q: What is used to measure atmospheric pressure?
A: Barometer instrument for measuring atmospheric pressure. It was invented in 1643 by the Italian scientist Evangelista Read More »
Source: www.chacha.com
Q: What are devices that measure atmospheric pressure?
A: Mercury barometers and aneroid(containing no liquid) barometers are used to measure atmospheric pressure. Read More »
Source: answers.yahoo.com