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An introduction to pressure which discusses various everyday applications and the relationship between pressure and surface area.
The fundamental SI unit of pressure is the Pascal (Pa), but it is a small unit so kPa is the most common direct pressure unit for atmospheric pressure.
Percy Williams Bridgman (1881 - 1961) research concerned the effects of high pressures on materials and their thermodynamic behavior.
Ever wondered why it hurts so much when someone wearing spiked heels steps on your foot? It's all about pressure.
physics.org page with fascinating facts all about atmospheric pressure. Did you know that you have one tonne of air pressing down on you?
A handy conversion calculator for some common pressure units.
Description of this concept and links to related information. Pressure is defined as force per unit area.
This page from NASA tells you all you need to know about atmospheric pressure. Find out why your ears pop or have a go at flying a hot air balloon.
A collection of interesting experiments dealing with air pressure and aerodynamics.
From the companion website to several recent NOVA programs on Mt. Everest. This page looks at the effects of air pressure at high altitudes.
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