Bones of the upper limbs

Bones of the upper limbs form the pectoral girdle and the arms.

The spread of Homo sapiens on Earth

The 'wise man' originated in Africa and dispersed throughout most of the continents.

Mushrooms

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

Covalent bonds in benzene molecules

In benzene there are sigma bonds and delocalised pi bonds between carbon atoms.

Rivers and landforms

Rivers play an important role in shaping the Earth's surface: they cause erosion as well as carrying and depositing sediment.

Stephenson’s Rocket (1829)

The English engineer George Stephenson’s locomotive was built for a competition of locomotives in 1829.

Ford Model T

The popular model of the American automobile factory was the first mass-produced car in the world.

The Cassini-Huygens Mission (1997-2017)

The Cassini spacecraft was exploring Saturn and its moons for nearly 20 years.

Development of the atomic model

Major phases in the history of theories and views about the structure of the atom.

Neolithic settlements

As a result of the revolutionary advances in the Neolithic, settling human communities established the first lasting settlements.

Mallard

This animation demonstrates the anatomy of birds through the example of mallards.

Airport

Airports provide infrastructure and services necessary for aviation.

Air pollution

This animation demonstrates the main sources of air pollution: agriculture, industry and urban settlements.

Inca warrior (15th century)

The Incas´ rudimentary weapons were inadequate in their struggle against the Spanish Conquistadors.

Arab warrior (6th century)

The most important weapons of medieval Arab warriors were the bow and the sword.

Monsoon wind system

In summer, monsoon winds bring heavy rainfall from the ocean to the continent.

Desktop computer

This animation demonstrates the structure and most important peripherals of desktop computers.

Optical instruments

A wide variety of optical instruments are in use today, ranging from microscopes to telescopes.

The upper gastrointestinal tract

During swallowing food travels from the mouth cavity into the stomach.

Paramecium caudatum

Common ciliated eucaryotic unicellular organisms widespread in freshwaters.

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