Space probes and Mars rovers examine the structure of Mars and possible traces of life.
Medieval townhouses were built from stone or brick and were several storeys high.
The B-24 Liberator was an American heavy bomber aircraft, built in large numbers, that was used on every front during World War II.
The inflammation of the vermiform appendix, which is connected to the cecum, requires immediate surgical intervention. The animation shows the cause and...
Wealthy citizens in ancient Rome owned large houses with varied layouts of several rooms.
Christopher Columbus' three-masted carrack, the Santa Maria was the flagship of his first, landmark voyage.
Designated as the first National Treasure of South Korea, the Namdaemun was one of the major gateways of Seoul's Medieval city walls.
The name of this magnificent palace complex originates in Arabic and means 'the red one'.
A wooden church built in the 12th-13th centuries, the best preserved of Norway´s stave churches.
Our gametes are haploid cells produced from diploid cells by meiosis, a special type of cell division.
The atomic bomb is one of the most destructive weapons in human history.
The three important laws describing planetary motion were formulated by Johannes Kepler.
The animation shows five outstanding works in the history of sculpture.
The largest bronze-age building complex of ancient Crete was probably the centre of Minoan civilisation.
This animation shows the characteristics of domestic light sources, from traditional light bulbs to LED lights.
Life magazine picked Gutenberg's invention of mechanical movable type printing as the most important event of the second millennium.
The heart generates the electrical impulses necessary for its own operation. The graphic representation of the electrical activity of the heart is the...
In loudspeakers sound waves are generated by electromagnetic induction.
The Buddhist pagoda of the six Harmonies is located in China, by the River Qiantang.
This animation demonstrates the internal structure of the brain.