Ukrainian Cossack (17th century)

Cossacks, members of independent semi-military communities, played an important role in the history of Ukraine.

German alphabet game

Practise the German alphabet and form words from the letters.

Megalithic cultures in Europe

Structures consisting of enormous stone blocks, dating back thousands of years, are monuments of megalithic cultures.

Unmanned aerial vehicles (UAV)

The range of applications of unmanned aerial vehicles ('drones') keeps growing.

The life cycle of plants

The development of mosses, ferns, gymnosperms and angiosperms is characterised by the alternation of generations.

The anatomy of the heart

This scene presents the location, anatomy and functioning of the central organ of the human circulatory system.

Fallingwater (Mill Run, USA, 1939)

Frank Lloyd Wright's well-known work is a masterpiece of modern organic architecture.

Permian flora and fauna

This 3D scene presents the flora and fauna of the last period of the Palaeozoic Era.

Cement production

This 3D scene presents the steps of the cement manufacturing process.

How does it work? - Vacuum cleaner

The vacuum cleaner creates a partial vacuum and sucks up dust with the help of the incoming high-pressure air.

How does it work? - PET-CT

By positron emission tomography (PET), we can obtain visual information on our internal organs without making any surgical incisions.

English alphabet game

Practise the English alphabet, build words from letters.

Enzymes

Enzymes are protein molecules catalysing biochemical reactions. Their activity can be regulated.

Bone structure

This scene explains the structure and functions of the bones.

The adrenal glands

The adrenal glands are responsible for maintaining homeostasis and producing a rapid response in stressful situations.

The structure of prokaryotic and eukaryotic cells

There are two basic cell types: prokaryotic and eukaryotic cells.

Russian alphabet game

Practise the Russian alphabet, build words from letters.

Carbonic acid (H₂CO₃)

Colourless, odourless liquid produced by dissolving carbon dioxide in water.

RNA

A polynucleotid made up of phosphoric acid, ribose, and nucleobases (cytosine, uracil, adenine and guanine).

The Varaždin Castle (16th century)

This stunning castle is situated in northern Croatia.

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