Nitrogen (N₂) (intermediate)

A colourless, odourless, non-reactive gas, it constitutes 78.1% of Earth´s atmosphere.

Ara Pacis Augustae (Rome, 1st century BC)

The Altar of Peace, commissioned during the reign of Augustus, was one of the most important works of ancient Roman art.

Carbon dioxide (CO₂) (intermediate)

Colourless, odourless, heavier-than-air gas. Necessary for the photosynthesis of plants.

The Battle of Gaugamela (331 BC)

The battle, that is considered to be a tactical masterpiece, meant a decisive victory for Alexander the Great against Persia.

Zither

A zither is one of the typical instruments of Hungarian folk music, played by strumming or plucking the strings.

Belgrade (15th century)

The castle of Belgrade (Nándorfehérvár) was one of the most important components in the chain of Hungarian border forts.

Archimedes’ screw (3rd century BC)

The screw pump commonly attributed to Archimedes made irrigation much more effective

Cromwell´s Ironsides (17th century)

The Ironsides were members of the Parliamentarian cavalry formed by Oliver Cromwell during the English Civil War.

Clothing in ancient Egypt

Inhabitants of ancient Egypt wore characteristic clothes and jewellery.

Tower of Hanoi

The Tower of Hanoi is a mathematical puzzle.

Sputnik 1 (1957)

The Soviet-made satellite was the first spacecraft to be launched into outer space (in October 1957).

The Hungarian Crown Jewels

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

Tall buildings

Tall buildings are mementoes of human history and technological development.

German soldier (World War II)

Soldiers of the Wehrmacht in World War II were well-trained and well-equipped with modern weapons.

Gothic brick castle (Gyula, Hungary)

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

States and cities of the USA

This animation demonstrates the states and largest cities of the USA.

Motorised aeroplane (János Adorján, 1910)

The construction of ´Libelle´ (Dragonfly) is one of the milestones of (Hungarian) aviation history.

Ichthyosaur

Fish-like marine dinosaurs which resembled dolphins; a good example of convergent evolution.

Sulphur trioxide (SO₃)

One of the oxides of sulphur, forms sulphuric acid with water.

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