The Zuiderzee Works and the Delta Works (Netherlands)

Remarkable civil engineering works to continue the Netherland's centuries-long fight against the sea.

The sense organs

Organs that detect signals of the environment or of the body and transmit them to the brain as nerve impulses.

Ukrainian Cossack (17th century)

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

Fullerene (C₆₀)

A crystalline allotrope of carbon which was discovered at the end of the 1980s.

Axolotl

The axolotl, also known as Mexican salamander, is an amphibian species that keeps its gills even in adulthood.

RNA

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

Ragusa (Croatia, 16th century)

Today called Dubrovnik, this Croatian city is known for its spectacular architecture and beautiful location.

Administrative divisions of the Netherlands

This animation presents the provinces and provincial capitals of the Netherlands.

Stearic acid (octadecanoic acid) (C₁₇H₃₅COOH)

Solid, white substance, a constituent of vegetable oils and animal fats.

Regular square pyramid

A regular square pyramid is a right pyramid with a square base and four triangular faces.

Ratio of volumes of similar solids

This 3D scene explains the correlation between the ratio of similarity and the ratio of volume of geometric solids.

Administrative divisions of China

A presentation of the major administrative units of China.

The Varaždin Castle (16th century)

This stunning castle is situated in northern Croatia.

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.

The life cycle of plants

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

Enzymes

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

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.

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