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en.wikipedia.org/wiki/Atmospheric_pressure

Atmospheric pressure, sometimes also called barometric pressure, is the pressure within the atmosphere of Earth In most circumstances atmospheric pressure is ...

www.ask.com/youtube?q=Understanding+Atmospheric+Pressure&v=jmQ8FWnM0fA
Jun 1, 2011 ... so why is it when air rises the air pressure gets lower? Not trying to be a smartass I don't understand this or why things happen the way they do.

www.livescience.com/39315-atmospheric-pressure.html

Aug 29, 2013 ... Atmospheric pressure is the force exerted against a surface by the weight of the air above the surface.

usatoday30.usatoday.com/weather/wbarocx.htm

Understanding air pressure. The weight of the air pressing down on the Earth, the ocean and on the air below causes air pressure. Earth's gravity, of course, ...

www.artofmanliness.com/2015/07/07/fair-or-foul-how-to-use-a-barometer

Jul 7, 2015 ... Atmospheric pressure — or barometric pressure — is simply the weight of the air at ground level. It's a little easier to understand when you think ...

www.nationalgeographic.org/encyclopedia/atmospheric-pressure

May 14, 2011 ... The air around you has weight, and it presses against everything it touches. That pressure is called atmospheric pressure, or air pressure.

www.in-fisherman.com/rigged-ready/ne/understanding-barometric-pressure

Understanding how barometric pressure and other mitigating factors—both natural and human-related—affect fish behavior will definitely help you catch fish.

www.kidsgeo.com/geography-for-kids/0049-atmospheric-pressure.php

To understand pressure, consider a sponge. When left alone, a sponge stretches out to its full size. As you squeeze down on the sponge, what happens?

www.geography4kids.com/files/atm_pressure.html

The key to understanding pressure in the atmosphere is to understand how gases work. You can read about gases and how pressure can increase and ...

www.theweatherprediction.com/habyhints2/410

The air pressure is a function of how much air is pressing over an area. ... Much of the general public does not understand how air pressure is used in ...