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Atmospheric Pressure

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.

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Explore Big History

Interactively explore the timeline of the universe.

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Hits: 641

Squishy Circuits

An activity to do at home to explore the world of circuits. Make two types of dough, one that carries electricity and one that doesn't, to create all sorts of circuits and explore how they work.

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Hits: 93

Air 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?

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Hits: 3068

How air pressure affects you

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.

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Hits: 4756

Atmospheric Pressure and altitude

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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Hits: 4854

Fowler's Physics

Various applets allowing results to be taken for demonstration purposes.

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Hits: 1392

Line Rider

A fun toy that lets you build a sledge run and then test it out. You'll need a good feel for the laws of motion to get results!

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Hits: 4690

Seeking the Cosmic Dawn

A look at the results from BICEP2 detector in the south pole which gives evidence for inflation happening at the start of the universe.

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Hits: 213

hyperphysics

Boiling Point

The boiling point is defined as the temperature at which the saturated vapor pressure of a liquid is equal to the surrounding atmospheric pressure.

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