This animation introduces the most important systems of the human body.
Bacteria occur in a wide range of shapes, including spheres, rods and spirals.
Candles have been used for lighting since ancient times.
The ribs, the sternum and the spinal column form the skeleton of the chest.
Eukaryotic cells contain a number of organelles.
Lymph vessels carry lymph to the blood vessels, while lymph nodes are integral parts of the immune system.
A hydrothermal vent is a fissure in the planet's surface through which geothermally heated water erupts.
RMS Titanic was the largest passenger ship at the beginning of the 20th century.
Located close to Osaka, the Japanese castle is also called the White Heron because of its white exterior.
The B-24 Liberator was an American heavy bomber aircraft, built in large numbers, that was used on every front during World War II.
This animations demonstrates the exterior and interior construction of cars, as well as their operation.
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.
A type of steam locomotives used by British Railways were manufactured in the 1950s.
Life magazine picked Gutenberg's invention of mechanical movable type printing as the most important event of the second millennium.
The diameter of the Sun is about 109 times that of the Earth. Most of its mass consists of hydrogen.
The International Space Station is a habitable satellite built with the cooperation of 16 countries.
Bottlenose dolphins are sea mammals which use ultrasound for orientation.
The Earth is composed of several spherical layers.
The orbits of the 8 planets in our Solar System are elliptical.