Medieval Chinese soldier

The equipment of ancient Chinese soldiers was rudimentary.

Ichthyosaur

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

Lake steamer (1846)

The first paddle steamer in Hungary entered service in 1846.

Hydrogen peroxide (H₂O₂)

The compound of hydrogen and oxygen. Colourless, odourless liquid; heavier than water.

Folding (intermediate)

Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.

Soil types - Hungary (map)

This animation demonstrates the types of soil found in Hungary.

Typical Central European flat in the 1950s

Typical Central European flats in the 1950s consisted of a single room, a kitchen and a...

Topographic map of Hungary

This animation demonstrates the geographical regions of Hungary.

Administrative divisions of Hungary

This animation presents the regions, counties and cities of Hungary.

Pyrimidine (C₄H₄N₂)

A heterocyclic organic compound, its derivatives are thymine, cytosine and uracil.

Pyridine (C₅H₅N)

A basic heterocyclic organic compound; a colourless, pungent toxic liquid.

Political and economic unions

Several political and economic unions have been formed between countries during the past...

The water cycle (basic)

Water on Earth is in a continuous state of change. The water cycle includes processes...

Dimethylamine (NH(CH₃)₂)

A colourless gas with a pungent odour. It is widely used in industry.

Ethene (ethylene) (C₂H₄)

The first member in the homologous series of 1-alkenes.

Historical topography (notable personalities, universal history)

Find present-day countries related to notable historical personalities.

Ancient Athenian citizen with his wife

The Athenian democracy was built on the community of citizens with full rights.

Clothing (Western Europe, 1980s)

Clothing reflects the lifestyle and culture of the region's inhabitants.

Dynamo (basic)

A dynamo converts mechanical energy into direct current.

Ancient Roman senator with his wife

Senators, being members of the highest social class of ancient Rome, wore togas with...

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