The Gregorian calendar

Developed nearly 500 years ago, it is a variant of the Julian calendar. Today it is the most widely used calendar.

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The World of the seas

Seas and oceans cover almost three-quarters of the Earth’s surface. 97.5% of the total...


Tsunami waves are very high waves of immense destructive power.


Waves play an important role in forming the coast.

Soil types - Hungary (map)

This animation demonstrates the types of soil found in Hungary.

Aeolian landforms on coasts and steppes

Wind, as an external force, plays an important role in shaping coastal areas and steppes.

Weather fronts

When masses of cold and warm air meet, weather fronts develop.


Rocks are a composed of minerals. These minerals can often be found in their pure forms.

Formation of stratovolcanoes

Stratovolcanoes consist of layers of volcanic ash, debris and lava.

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