Comets

Comets are spectacular celestial bodies orbiting the Sun.

The city of Babylon (6th century BC)

The ancient city of Babylon was built on the banks of the Euphrates River in Mesopotamia.

How does it work? - Computer tomography scanner

This animation demonstrates the structure and operation of CT scanners.

Transparency

This animation explains transparency and opacity, the principle of radiography, and the light-absorbing properties of materials.

Patent-Motorwagen (Karl Benz, 1886)

The Benz Patent-Motorwagen is widely regarded as the first vehicle propelled by an internal combustion engine.

Our astronomical neighbourhood

A demonstration of nearby planets, stars and galaxies.

Terms of physical geography

This animation demonstrates the most important relief features, surface waters and their relevant symbols.

Chichen Itza (12th century)

The legendary city of the Mayan-Toltec Empire was located on the territory of present-day Mexico.

Environmentally friendly vehicles

Combining a conventional internal combustion engine propulsion system with an electric propulsion system reduces emission.

Moai (Easter Island, 16th century)

This Pacific island is famous for its unique monolithic human figures.

Baths of Caracalla (Rome, 3rd century)

The magnificent bath complex of the Roman Emperor was built in the 3rd century AD.

Tooth brushing

Careful tooth brushing is an important part of oral hygiene.

Oasis

Oases are areas in deserts where water is available.

Bells

The bell is a percussion instrument and an idiophone. Many types of bells exist.

Relief map of China

An introduction to the relief and hydrography of China.

Piano

The piano is one of the most popular instruments in the world. It is a chordophone which produces sounds mechanically.

String quartet

A string quartet consists of four string players, it appeared in the late 18th century.

Ancient Egyptian sailing boat

The river and marine sailing boats of ancient Egypt were one-masted, oared boats

Byzantine Emperor (6th century)

The Byzantine Emperor was the head of the Byzantine Empire, the direct continuation of the Roman Empire.

Glaciation

The last Ice Age ended about 13 thousand years ago.

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