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How does it work? - Loudspeaker

In loudspeakers sound waves are generated by electromagnetic induction.

The Berlin Wall (1961-1989)

A symbol of division and oppression, the Wall tore a city and numerous families apart.

Liuhe Pagoda (Hangzhou, 12th century)

The Buddhist pagoda of the six Harmonies is located in China, by the River Qiantang.

Medieval town

Medieval townhouses were built from stone or brick and were several storeys high.

The ventricular system and the main brain regions

This animation demonstrates the internal structure of the brain.

Lymphatic system

Lymph vessels carry lymph to the blood vessels, while lymph nodes are integral parts of the immune system.

Apollo 15 mission (Lunar Rover)

The animation shows the two-seater Lunar Rover used in the Apollo 15 mission

Gutenberg's press (Mainz, 15th century)

Life magazine picked Gutenberg's invention of mechanical movable type printing as the most important event of the second millennium.

The Sun

The diameter of the Sun is about 109 times that of the Earth. Most of its mass consists of hydrogen.

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.

The Solar System; planetary orbits

The orbits of the 8 planets in our Solar System are elliptical.

Change of seasons (intermediate)

Due to the Earth´s tilted axis, the angle of the Sun's rays at given latitudes continuously changes during the year.

Geographic coordinate system

The geographic coordinate system enables every location on the Earth to be exactly specified.

Domestic electric light sources

This animation shows the characteristics of domestic light sources, from traditional light bulbs to LED lights.

Atomic bombs (1945)

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

Syrian water wheels (City of Hama, 13th century)

Medieval Syrian water wheels were used to convey water to distant areas.

Samurai

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

Knossos Palace (2nd millenium BC)

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

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