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In rock-paper-scissors, the least popular choice of players is paper. But is it really...

An experiment with crushing results

How can a tin can be crushed without manual force? All you need is some water and heat.


A bicycle light can be used with not only batteries, but it can be operated with our own...

String saw

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


Pines are conifer trees characteristic of the taiga. The timber of pine trees is a...


A lake is a body of still water surrounded by land. The majority of lakes contain...

Liquid magnifier

Make a magnifying glass using a jar, some cling foil and a few drops of water.


Let's find out more about this tiny country in Central Europe called Slovakia. This state...

Types of lakes

Still waters take various forms on the planet. Let’s take a look at how we can group them.

After the peace agreements

A summary of events right after the peace agreements that put an end to World War I.

The terrestrial planets

The terrestrial planets in our Solar System are the four planets closest to the Sun. They...


This species of antelope, native to southern Asia, is more often seen in zoos than in the...

Water cycle

Water on the surface of the Earth is almost never completely still. Its place and state...

Salt Production

The evaporation of seawater provides an excellent opportunity for coastal countries to...

This is how it's made

Are you curious how our digital materials are made? Go behind the scenes.


A cuboid is a polyhedron with six rectangular faces.

Nets of a cuboid

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


Greece is considered one of the cradles of European culture. Today, its key sector is...

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