The animation shows the two-seater Lunar Rover used in the Apollo 15 mission
The respiratory system is responsible for the intake of oxygen and the release of carbon dioxide.
This animation demonstrates the parts of the head, the torso and the limbs.
The primary duty of these Japanese warriors was to serve their feudal lords, even at the cost of their own lives.
The diameter of the Sun is about 109 times that of the Earth. Most of its mass consists of hydrogen.
Neil Armstrong, one of the crew members of Apollo 11 was the first man to set foot on the Moon.
This animation demonstrates the development of the axe throughout archaeological periods.
Aluminium smelting is the process of extracting aluminium from alumina by electrolysis.
The apparent movement of the Sun is caused by the Earth's rotation around its axis.
River locks make rivers with great level differences safe for boating.
The ancient city of Babylon was built on the banks of the Euphrates River in Mesopotamia.
A dynamo converts mechanical energy into direct current.
Lightning is a sudden electrostatic discharge accompanied by a sound known as thunder.
One of the best known buildings in the world, this is the residence and office of the President of the United States.
This animation demonstrates the functioning of the 3 basic types of water tap.
The Rutherford Experiment proved the existence of positively charged atomic nuclei. The results led to the elaboration of a new atomic model.
Learning about the geographic location, capitals and flags of the world´s countries through exercises in three levels of difficulty.
Commercial maritime routes of container ships form a global network.
The Internet allows us to send data quickly to large distances.
Candles have been used for lighting since ancient times.