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

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

Angle of inclination of lines and planes

This animation demonstrates the angle of inclination of lines and planes in various positions.

Human evolution

The brain and skull underwent significant changes during human evolution.

Ichthyostega

A prehistoric amphibian and an early representative of the Tetrapods, which became extinct 360 million years ago.

Photosynthesis (basic)

Plants are capable of converting inorganic substances (carbon dioxide and water) into organic sugar.

Laptop computer, peripherals

A variety of peripherals can be used with laptop computers.

Cities

A type of settlement that has central functions.

Marsh harrier

Marsh harriers are birds of prey found almost worldwide.

Drums

Drums are played by hitting the membrane. There are many versions of drums.

Battle of Zama (202 BC)

Scipio’s Roman army defeated Hannibal’s Punic army in the battle fought during the 2nd Punic war in Africa.

Clothing in ancient Egypt

Inhabitants of ancient Egypt wore characteristic clothes and jewellery.

Chain Bridge (Budapest)

The Széchényi Chain Bridge, named after István Széchenyi, was the first permanent bridge across the Danube between Pest and Buda.

Threshing machine (19th century)

Threshing machines are used for separating grains from straw.

The fortress of Oradea (1775)

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

Mir Castle Complex (17th century)

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

Refugee camp in Africa (Darfur)

Because of the military conflict in Sudan, millions of people had to flee their homes.

Gothic brick castle (Gyula, Hungary)

A brick castle in South-East Hungary; its oldest parts were probably built in the late 14th century.

How does it work? - Microwave oven

This animation demonstrates how microwave ovens work.

Four colour theorem

Colour a map with the fewest number of colours possible, so that no two adjacent regions have the same colour.

The Hungarian Crown Jewels

The best-known piece of the Hungarian Crown Jewels is the Holy Crown.

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