The efficient reconnaissance aircraft has been used by the CIA since the Cold War.
Living fossil, important stage in the evolution of tetrapods.
The Global Positioning System consists of 24 satellites but only 4 have to be visible for positioning.
A force can be measured by measuring the twisting of the torsion wire in a torsion balance.
Extinct species of fish which had thick ´armour´ protecting the head.
Central European farmhouses in the 19th century had characteristic interior and exterior.
Colourless, odourless gas, highly toxic to humans and animals in high concentration.
A pilgrimage chapel designed by the French architect Le Corbusier, one of the greatest architects of the 20th century.
A type of settlement that has central functions.
Pharaoh Thutmose III defeated the rebellious coalition of Canaanite vassal states led by the king of Kadesh.
In the battle fought at the shores of Hellas, Octavian won a decisive victory over Marcus Antonius.
The phalanx formation was a military formation of the Greek heavy infantry.
The Roman army, led by Flavius Aetius, stopped the Hun invasion led by king Attila
Members of the ancient Roman Legions were the masters of military tactics.
The small passenger aircraft is designed for speed, convenience and economical operation.
This animation compares a modern living room and a typical bourgeois salon.
Hans Christian Andersen´s legendary character comes to life in a diorama.
Otters are semi-aquatic predatory mammals.
This animation demonstrates the most important equipment of ambulance cars.
The Mir Castle Complex, situated in the town of Mir, Belarus was built in the Gothic-Renaissance style.