The water cycle

Water on Earth is constantly in flux and is going through a cycle.

The lion

King of the savannahs, the lion is at top of its food chain. Its only enemy is man.

mozaik3D app

Promotional video of our new native app on Android.

Plitvice lakes

Croatia’s stunning system of lakes is included on the list of World Heritage Cultural Sites.

Perpetual motion machine

Inventors have been mulling just as long over the idea of constructing a device which would work...

CD hovercraft

This simple experiment shows how you can make a floating CD using ordinary tools.

The Great Depression

This video presents the causes and the solution of the Great Depression.

The overpopulation of the Earth

This video presents the consequences of the Earth’s overpopulation, the antecedents of the...

Adventurers in time

This animation presents the phenomenon of the twin paradox that results from Albert Einstein’s...

The bicycle

Here are a few interesting bits and pieces about the world’s most economical means of...

The problem of the bridges of Königsberg

Legend has it that a question arose among the citizens of Königsberg whether one could walk...

Balancing utensils table trick

With this little balance trick, you can amaze your friends using a toothpick, a spoon, a fork...

Fire resistant water balloon

Using some water, you can easily make a fireproof balloon at home.

Saint Peter’s Basilica

The world’s largest Christian church is found in Vatican City, within the city of Rome.

Why do days and nights alternate?

The alternation of day and night is caused by the Earth’s rotation around its axis.


Mammals are the most developed representatives of the animal kingdom. Let’s find out more about...

The Indian python

There are some species in the animal kingdom that do just fine with a single meal a month or...

Metropolises: destruction or sustainability

Watch this video to find out what problems a metropolis has to face today.

The discovery of America

America was discovered by several groups before the Europeans arrived, but was forgotten after....

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