Giant sequoia

Giant sequoias are the world's largest living organisms by mass.

Ötzi, the Iceman

The mummified body of a man who probably lived in the Chalcolithic period, was found in one of the glaciers of the Alps.

Sabre-toothed cat

Large, extinct species of cats named after the shape of their large canine teeth.

Saker falcon

The saker falcon is a large bird of prey widespread in Europe and and Asia.

Shadows

Change of light conditions in different seasons. Measuring height using shadows.

Western jackdaw

Groups of western jackdaws are frequently found in cities. Konrad Lorenz analysed the complex social behaviour of these animals.

Chilean recluse spider

The poisonous bite of the Chilean recluse spider poses a serious threat to human health.

Market town (Kingdom of Hungary)

Market towns became the most common type of towns in the Kingdom of Hungary by the Late Middle Ages.

Bombardier CRJ200 (1991)

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

Church of St John at Kaneo (Ohrid, 13th c.)

The Orthodox church, situated on a picturesque cliff, was named after John the Apostle

The science of Santa Claus

Every year, Santa Claus brings gifts to nearly 600 million children on Christmas Eve. Let's see what physical facts make his job harder.

Cities

A type of settlement that has central functions.

The battle of Actium (31 BC)

In the battle fought at the shores of Hellas, Octavian won a decisive victory over Marcus Antonius.

Carbon monoxide (CO) (intermediate)

Colourless, odourless gas, highly toxic to humans and animals in high concentration.

The Battle of the Catalaunian Plains (451)

The Roman army, led by Flavius Aetius, stopped the Hun invasion led by king Attila

Mir Castle Complex (17th century)

The Mir Castle Complex, situated in the town of Mir, Belarus was built in the Gothic-Renaissance style.

Refugees and migrants

This animation presents the current refugee crisis from various points of view.

Solids of revolution (rectangle)

Rotating a rectangle around its axes of symmetry or around its sides results in solids of revolution.

The castle of Eger (16th century)

The castle of Eger got its final shape and became an important component in the new chain of border forts in the 16th century.

Oxygen (O₂) (intermediate)

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

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