A wooden church built in the 12th-13th centuries, the best preserved of Norway´s stave churches.
Major phases in the history of theories and views about the structure of the atom.
The steam engine, perfected by the Scottish engineer James Watt, revolutionised technology.
Medieval Syrian water wheels were used to convey water to distant areas.
The French Montgolfier brothers were the first pioneers of flying.
Designated as the first National Treasure of South Korea, the Namdaemun was one of the major gateways of Seoul's Medieval city walls.
Learning about the geographic location, capitals and flags of the world´s countries through exercises in three levels of difficulty.
The inflammation of the vermiform appendix, which is connected to the cecum, requires immediate surgical intervention. The animation shows the cause and...
The primary duty of these Japanese warriors was to serve their feudal lords, even at the cost of their own lives.
Energy released during nuclear fission can be used for civilian or military purposes.
In benzene there are sigma bonds and delocalised pi bonds between carbon atoms.
This bizarre-looking fish uses its bioluminescent lure to catch its prey. The animation explains how it works.
Neil Armstrong, one of the crew members of Apollo 11 was the first man to set foot on the Moon.
Located close to Osaka, the Japanese castle is also called the White Heron because of its white exterior.
Space probes and Mars rovers examine the structure of Mars and possible traces of life.
The animation shows the two-seater Lunar Rover used in the Apollo 15 mission
This animation demonstrates the internal structure of the brain.
Bottlenose dolphins are sea mammals which use ultrasound for orientation.
The Buddhist pagoda of the six Harmonies is located in China, by the River Qiantang.
In loudspeakers sound waves are generated by electromagnetic induction.