The Berlin Wall (1961-1989)

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

Medieval town

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

B-24 Liberator

The B-24 Liberator was an American heavy bomber aircraft, built in large numbers, that was used on every front during World War II.

Roman snail

A widespread snail species, also popular as food.

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.

Mushrooms

A mushroom is the fleshy fruiting body of a fungus, made up from hyphae.

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.

Venus figurines

These Paleolithic statuettes probably symbolize fertility and prosperity.

Geographic coordinate system

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

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...

The ventricular system and the main brain regions

This animation demonstrates the internal structure of the brain.

The human eye

The eye is one of our most important sense organs. When stimulated by light, electric impulses are produced by its receptors.

Glands connected to the duodenum

The pancreas and the liver empty digestive juices into the duodenum.

Lymphatic system

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

The development of celestial mechanics

This animation introduces the studies of astronomers and physicists whose works fundamentally changed our view of the universe.

Bacteria (spheres, rods, spirals)

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

The heart

The heart is the central pump of the cardiovascular system beating several billion times over our lifetime.

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