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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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Let's measure time!

This lesson presents timekeeping devices and the types and units of time measurement.

Frog violin

Is a matchbox able to imitate the croak of frogs? With the following experiment we reveal the...

Plastic bottle rocket

In this experiment, we convert a plastic bottle into a rocket.

The brachistochrone problem

Find out whether the marble reaches the finish line faster on the straight or on the curved slope.

Cartesian diver

Objects denser than water sink in water.

Seconds pendulum

How can this pendulum accurately measure time in seconds?

Project Garage Band

Let's make musical instruments.

Sound waves all around us • Part 2

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

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