The saker falcon is a large bird of prey widespread in Europe and and Asia.
Woodwind instruments differ from brass instruments mainly in their reed.
Extinct species of fish which had thick ´armour´ protecting the head.
The Votive Church of Szeged, located on the Great Plains of Hungary, emerges from the buildings of the city's famous square, while the National Pantheon can...
This animation demonstrates how a washing machine works.
The animation demonstrates how laser printers work
Groups of western jackdaws are frequently found in cities. Konrad Lorenz analysed the complex social behaviour of these animals.
By varying the position of the light source, you can examine the shades projected onto the planes of the coordinate system.
The Tower of Hanoi is a mathematical puzzle.
The Orthodox church, situated on a picturesque cliff, was named after John the Apostle
A variety of peripherals can be used with laptop computers.
Dogs are the domesticated subspecies of grey wolves.
The phalanx formation was a military formation of the Greek heavy infantry.
Flat feet, or fallen arches, may cause a number of health problems.
Members of the ancient Roman Legions were the masters of military tactics.
Hans Christian Andersen´s legendary character comes to life in a diorama.
Central European farmhouses in the 19th century had characteristic interior and exterior.
Otters are semi-aquatic predatory mammals.
Amino acids that make up proteins are bound by peptide bonds.
This animation demonstrates the construction of a fire engine.