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Electrical resistance

A good explanation of electrical resistance, why it exists and the variables that affect it including wire length, width and material.

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Hits: 3894

Explore Big History

Interactively explore the timeline of the universe.

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Hits: 671

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: 219

Electrical resistance

Good revision site aimed at UK A Level standard covering resistance, ohm's law, conductivity etc

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Hits: 3203

Resistance

Definition and links to related information on electrical resistance.

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Hits: 2189

Resistance at the molecular level

A useful animation to demonstrate the free electron model of current flow, showing electrical resistance in the copper wire of a lightbulb.

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Hits: 3563

Fowler's Physics

Various applets allowing results to be taken for demonstration purposes.

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Hits: 1429

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: 4848

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: 234

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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