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The effects of flowing waterbodies in the mountains

The greater the discharge and speed of the water, the stronger its surface-shaping force.

The history of lighting

Nowadays it is perfectly natural to turn on the lights. But it has not always been that way.

The cymbal

When plates and membranes vibrate they deform spectacularly. These deformations, however, are...

Putting a candle out with sound waves

How can sound waves be detected in the air?

Levitating magnets

This simple experiment demonstrates the phenomenon of magnetic levitation.

Hand-powered paper turbine

Let’s rotate a paper wheel with the heat of our hands.

Travertine Terraces

Find out the secret of the unique beauty of travertine terraces.

The formation of the Andes

The Andes were formed by the collision of two tectonic plates, one oceanic and one continental.

The Baikal fault line

The deepest lake in Earth was formed in a rift valley created by the Baikal Rift Zone.

Snowflake

Fold the paper here and there, chip one or two with the scissors. This is all you need to create...

Nets of a cuboid

This animation demonstrates the different nets of a cuboid and includes a game.

Cuboid

A cuboid is a polyhedron with six rectangular faces.

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