Medieval Christian king

Medieval kings were typically depicted sitting on their thrones, wearing a crown and the...

Euler's polyhedron formula

The theorem formulated by Leonhard Euler describes one of the basic properties of convex...

Diamond

Crystalline allotrope of elemental carbon, the hardest known natural substance.

Wine region

Wines of the Tokaj wine-growing region are well known worldwide.

Battle of Alesia (52 BC)

The Gaul city Alesia, which was defended by Vercingetorix, was besieged by the Roman...

Common blackbird

This animation demonstrates birds' bones and eggs through the example of the common...

Oxygen (O₂) (intermediate)

A colourless, odourless gas, an important component of the atmosphere, indispensable to...

Colouring a cube

Colouring the vertices, edges and faces of a given cube according to the criteria...

Ottoman architecture in Hungary (17th century)

Remnants of Ottoman architecture in Hungary include the Gazi Kasim Pasha Mosque in Pécs...

Romanesque style Benedictine church (Ják, Hungary)

A Romanesque style Benedictine church with a special gateway, built in the 13th century...

Clothing in ancient Egypt

Inhabitants of ancient Egypt wore characteristic clothes and jewellery.

Bombardier CRJ200 (1991)

The small passenger aircraft is designed for speed, convenience and economical operation.

The fortress of Oradea (1775)

The fortress of Oradea in Transylvania is a good example of medieval fortress architecture.

Coenzyme A

An acyl-carrier coenzyme taking part in both anabolic and catabolic processes.

Ancient Greek merchant ship

Ancient Greeks became the ‘carters of the sea’ thanks to their advanced sailing ships.

Peptide bond

Amino acids that make up proteins are bound by peptide bonds.

Flat feet

Flat feet, or fallen arches, may cause a number of health problems.

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