The equipment of ancient Chinese soldiers was rudimentary.
Fish-like marine dinosaurs which resembled dolphins; a good example of convergent evolution.
The first paddle steamer in Hungary entered service in 1846.
The compound of hydrogen and oxygen. Colourless, odourless liquid; heavier than water.
Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.
This animation demonstrates the types of soil found in Hungary.
Typical Central European flats in the 1950s consisted of a single room, a kitchen and a...
This animation demonstrates the geographical regions of Hungary.
This animation presents the regions, counties and cities of Hungary.
A heterocyclic organic compound, its derivatives are thymine, cytosine and uracil.
A basic heterocyclic organic compound; a colourless, pungent toxic liquid.
Several political and economic unions have been formed between countries during the past...
Water on Earth is in a continuous state of change. The water cycle includes processes...
A colourless gas with a pungent odour. It is widely used in industry.
The first member in the homologous series of 1-alkenes.
Find present-day countries related to notable historical personalities.
The Athenian democracy was built on the community of citizens with full rights.
Clothing reflects the lifestyle and culture of the region's inhabitants.
A dynamo converts mechanical energy into direct current.
Senators, being members of the highest social class of ancient Rome, wore togas with...