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Most species of frogs live near water, however some species have also adapted to extreme circumstances.

Asian elephant

This species of the family Elephantidae is the second strongest and biggest terrestrial mammal living on Earth today.

Animals of the polar regions

A video about the mammals living in the cold climate zones of the Earth, like the polar bear, seals and penguins.

Vatican City

The smallest state in the world, with an area of barely 0.44 km2. The Papal State has a population of just over 800 people, most of whom are ecclesiastical...

Boiling water with ice

Is it possible to boil water below its boiling point of 100°C?


A delicious fruit cultivated worldwide that is mostly eaten raw, but it also has various uses.


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


The potato originates from South America. It is the most important food crop beside cereals.

Southern three-banded armadillo

The southern three-banded armadillo is one of the very few species of armadillos capable of rolling into a complete ball to defend themselves.


One of the main ingredients of the highly popular refreshment: the lemonade. As it is high in vitamin C, it helps us prevent catching colds.

The reaction of Coke and milk

What happens when we mix these two well-known, chemically interesting liquids together?

Common hackberry

A tree that tolerates urban conditions well. Excellent quality whip handles used to be made from its branches.

Baroque architecture

Baroque is a style in art developed in Europe from the early 17th to mid-18th century. Among its characteristics are complex patterns, richly ornamented...

The power of acetone peroxide

Acetone peroxide is a dangerous crystalline organic compound with a consistency like icing sugar.


Lightning strikes somewhere on Earth every second. This extraordinary phenomenon is a spectacular sight, but at the same time it can be dangerous.

Maritime pine

A typical pine species of Mediterranean beaches and also the pine with the longest needles in Europe.

The dangers of aluminium production

The use of bauxite, which is first processed into alumina and then into aluminium, can be harmful.


Its fruit that is similar to apple is one of the most popular fruit we have. Among the fruit species, it is probably the one that needs the largest amount...

The operation of a nuclear power plant

Learn how a nuclear power plant with pressurized water reactors is operated.

The atmosphere

The atmosphere surrounds us everywhere on this planet. We take its presence so much for granted that we often manage to forget it.

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