Diamond

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

Graphite

One of the crystalline allotropes of elemental carbon.

Medieval Arab torpedo (Hassan Al Rammah, 13th century)

The medieval Arab inventor, Hassan Al Rammah designed the world's first operating torpedo.

Romanesque style Benedictine church (Ják, Hungary)

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

Junkers JU-52 (1932)

The most popular European-made transport aircraft before World War II.

Moon radar experiment (Zoltán Bay, 1946)

In 1946 a Hungarian scientist was the first person to detect radar echoes from the Moon.

Messerschmitt Bf 109 G (Germany, 1941)

A legendary fighter plane used by the German air force in World War II.

Tanks (World War I)

Tanks developed in the mid-1910s quickly became the most important weapons of land-based military operations.

How do fish breathe?

Blood vessels in fishes' gills absorb oxygen and release carbon dioxide.

Bourgeois salon

This animation compares a modern living room and a typical bourgeois salon.

Local winds

The most important types of local winds are the sea-land breeze, the mountain-valley breeze as well as the downslope winds.

How does it work? - Combine harvester

Combine harvesters are machines that harvest and thresh grain crops.

Treasury of Atreus (Mycenae, 14th century BC)

A beehive tomb on the site of the ancient city of Mycenae, attributed to the legendary king.

Soil pollution

This animation demonstrates the main sources of soil pollution.

Ring closure of glucose

The animation demonstrates the process of ring closure of open-chain glucose into alpha- and beta-D-glucose.

Water pollution

The main sources of water pollution are industry, agriculture and urban areas.

Shape games

Find views and nets of three-dimensional shapes.

Precision agriculture

This animation demonstrates the use of modern technology in agriculture.

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