The animation shows the way forces act on wheeled vehicles and vehicles with runners.

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The Doppler effect

This lesson helps to understand the Doppler effect.

Putting a candle out with carbon dioxide

What should we look out for in wine cellars? In this experiment we...

Sir Isaac Newton

Newton, one of the greatest physicists, has laid down the basics...

The magic chain

A spectacular optical illusion using a chain of closed rings.

Steam turbine

A drink can, water and a Bunsen burner can be used to create a...

Properties of matter: mass, volume and density

In certain cases, liquids do not mix together, and form layers...

Sound waves all around us • Part 2

In this lesson you will learn more about how sound propagates.

String saw

In this experiment we prove that it is possible to cut a bottle...

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