Water on the surface of the Earth is almost never completely still. Its place and state changes constantly. Let’s watch this cycle.
During evolution numerous creatures learnt to adapt to their environment, for example by camouflage.
A lake is a body of still water surrounded by land. The majority of lakes contain freshwater. On a geological scale their lifespan is relatively short.
There are a number of Viking stave churches in Norway that were once erected in honor of Viking gods.
The terrestrial planets in our Solar System are the four planets closest to the Sun. They are made up of rocks and metals and have hard surfaces.
Can a candle be re-lit if the flame of the match does not even touch it?
Make a magnifying glass using a jar, some cling foil and a few drops of water.
These unique works of art are renowned and sought-after worldwide. It is not unusual to spend 5000 hours working on a single tablecloth.
Camping is a perfect outdoor recreational activity. A popular form of camping is wild camping, however, this is illegal in some countries.
It is a popular form of urban travel. The first trams were built in the 19th century to satisfy the increasing demand for public transportation.
After the first oil crisis in 1973, trolleybuses gained popularity in urban transportation systems since their operation does not depend on the price of...
The rolling highway (Rollende Landstrasse) is an environmental friendly way of transportation where lorries are transported by trains.
Let's visit Prague, the capital of the Czech Republic and learn about its sights and the world famous Czech beer.
This species is an excellent example for symbiosis. Living together with sea anemones they keep predators away.
The establishment of Stalin’s dictatorial regime and its consequences.
A species of monkeys with complex social structure where hierarchical system can be clearly observed.
A popular pet of children. They can be easily recognized by the patches behind their eyes.
A typical animal of the Andes kept as a beast of burden as well as for its meat and wool.
This prosimian is an excellent example for a species' evolution in geographical isolation.Lemur means 'ghost' in Latin.
In this video we present why some of the well-known animal species were domesticated.