Subterranean rodents widespread in Central- and Eastern Europe.
The poisonous bite of the Chilean recluse spider poses a serious threat to human health.
Pharaoh Thutmose III defeated the rebellious coalition of Canaanite vassal states led by the king of Kadesh.
Threshing machines are used for separating grains from straw.
Hans Christian Andersen´s legendary character comes to life in a diorama.
Saving energy and protecting the environment are important factors in the design of modern office buildings.
This animation compares a modern living room and a typical bourgeois salon.
A pilgrimage chapel designed by the French architect Le Corbusier, one of the greatest architects of the 20th century.
Otters are semi-aquatic predatory mammals.
A brick castle in South-East Hungary; its oldest parts were probably built in the late 14th century.
This animation demonstrates how microwave ovens work.
Central European farmhouses in the 19th century had characteristic interior and exterior.
An acyl-carrier coenzyme taking part in both anabolic and catabolic processes.
The US Marine Corps is an important branch of the US Armed Forces, with about 200 thousand, specially trained members.
Dogs are the domesticated subspecies of grey wolves.
An exercise about the volume and surface area of solids generated from a ´base cube´.
World War I brought major changes in military technology, due to the development of new weapons.
Pollen serves to fertilise the egg of plants. Pollen grains come in a variety of shapes and sizes, characteristic of the species.
Cyclones are large air masses with winds spiralling inwards around a low-pressure centre, and carry clouds and precipitation.
One of the best known species of spiders, often kept as pets. Its bite is not fatal for humans.