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Explore Big History

Interactively explore the timeline of the universe.

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Hits: 530

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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Hits: 6066

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: 2815

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: 4555

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: 4598

Fowler's Physics

Various applets allowing results to be taken for demonstration purposes.

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Hits: 1239

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: 4303

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: 130

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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Hits: 2838

The End of My Latin

Kaufmann's experimental results on deflection of electrons in an electromagnetic field favoured Abraham's theory, not Einstein and Lorentz, but were eventually proved wrong.

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