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Steam turbine

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

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Learn how to pierce a balloon without popping it.

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Suction pumps and direct action pumps

Direct action pumps and suction pumps are among the simplest water pumps.


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This lesson explains the concept of atmospheric pressure.

The Doppler effect

This lesson helps to understand the Doppler effect.

String saw

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

The clever karate master

Can we break a stick with the weight of only a few sheets of paper?

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