Knossos Palace (2nd millenium BC)

The largest bronze-age building complex of ancient Crete was probably the centre of Minoan civilisation.

Viking stave church (Borgund, 13th century)

A wooden church built in the 12th-13th centuries, the best preserved of Norway´s stave churches.

Deep-sea hydrothermal vents

A hydrothermal vent is a fissure in the planet's surface through which geothermally heated water erupts.

Atomic bombs (1945)

The atomic bomb is one of the most destructive weapons in human history.

Operation of river locks

River locks make rivers with great level differences safe for boating.

The Sun's path above the major circles of latitude

The apparent movement of the Sun is caused by the Earth's rotation around its axis.

BR Standard Class 3 2-6-2T steam locomotive

A type of steam locomotives used by British Railways were manufactured in the 1950s.

Namdaemun (Seoul, South Korea, 14th c.)

Designated as the first National Treasure of South Korea, the Namdaemun was one of the major gateways of Seoul's Medieval city walls.

Dynamo (intermediate)

A dynamo converts mechanical energy into direct current.

Atmospheric circulation

The difference between the temperature of the polar and equatorial zones causes atmospheric circulation which is affected by a number of factors, including...

How does it work? - Water tap

This animation demonstrates the functioning of the 3 basic types of water tap.

Human body (female)

This animation introduces the most important systems of the human body.

Common bottlenose dolphin

Bottlenose dolphins are sea mammals which use ultrasound for orientation.

Lightning

Lightning is a sudden electrostatic discharge accompanied by a sound known as thunder.

Himeji Castle

Located close to Osaka, the Japanese castle is also called the White Heron because of its white exterior.

Samurai

The primary duty of these Japanese warriors was to serve their feudal lords, even at the cost of their own lives.

Mars Exploration Program

Space probes and Mars rovers examine the structure of Mars and possible traces of life.

Bacteria (spheres, rods, spirals)

Bacteria occur in a wide range of shapes, including spheres, rods and spirals.

The bones of the thorax

The ribs, the sternum and the spinal column form the skeleton of the chest.

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