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Loess is a clastic, predominantly silt-sized sediment, which is formed by the accumulation of wind-blown dust.
In order to protect our environment we must establish a sustainable world. The following pictures sum up the most pressing environmental issues.
Separate waste collection is probably the simplest way for us to contribute to the protection of our environment.
The social, economic and political consequences of World War I in certain countries.
Not many people know that the word 'coach' used in English-speaking countries originates from the name of a Hungarian village.
Greece is the cradle of European culture. Its archipelago consists of more than 1300 islands. Its economy is based mainly on tourism.
A mineral is a naturally occurring substance that is solid and stable at room temperature, and its composition can be represented by a chemical formula.
This video presents the events of the peace conference in Versailles after the end of World War I.
The force of the waves, whipped up by the wind near the shore, is a defining factor in shaping the coastline.
The lakeside is the natural habitat for a number of species. Here you can find duckweed, reed and cane, too. A bit further away the floodplain forest begins.
Croatia’s stunning system of lakes is included on the list of World Heritage Cultural Sites.
The most useful way to reduce mountains of waste is waste separation.
Coal is one of the most widely used energy sources. Its heating value is high; however, its exploitation is becoming increasingly problematic in Europe.
When the essential oil from the peel touches the candle flame, it burns and creates a ball of fire.
Almost every corner and building of the Italian capital is a reminder of historic events which you have certainly heard about.
The largest species of lizard that lives in isolation. Even a single bite of it can be fatal.
Horseshoes are mystical objects; they are thought to bring luck. Watch how the ancient profession of farriers is still practised today.
Waves play an important role in forming the coast.
Why did World War One break out? Who faced each other on the battlefields?
Who were the winners and losers of World War I? Among other things, this video sheds some light on that, too.