Structure of proteins

The structure and arrangement of polypeptide chains affects the spatial structure of proteins.

Deep-sea hydrothermal vents

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

Elementary particles

Matter is made up by quarks and leptons, while interactions are carried by bosons.

Offshore natural gas extraction, Norway

The Troll A is an offshore natural gas platform, the largest offshore platform ever built: it rises about 170 metres above water level, weighs 656,000...

Continents and oceans

Dry land on the surface of Earth is divided into continents which are separated by oceans.

Prenatal development

This animation demonstrates the development of the human embryo and foetus.

The water cycle (intermediate)

Water on Earth is in a continuous state of change. The water cycle includes processes such as evaporation, precipitation, melting and freezing.

Faulting (intermediate)

Vertical forces can break up layers of rock into fault blocks, which then move vertically along the fracture planes.

Tectonic plates

Tectonic plates can move in relation to each other.

Folding (advanced)

Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.

Tide

The rise and drop of sea levels caused by the gravitational force of the Moon.

Carbon cycle

Carbon is bound in organic substances during photosynthesis, while during breathing, it is released into the atmosphere.

Viking settlement (10th century)

Typical settlements of the Norsemen were not only established in Scandinavia, they appeared on distant areas as well.

Pyramid of Djoser (Saqqara, 27th century BC)

The step pyramid, built in the 27th century BC, was the first pyramid in Egypt.

Tenochtitlan (15th century)

The magnificent capital of the Aztec Empire astonished even the Spanish Conquistadors.

Soviet labour camp (1930s)

Soviet labour camps (Gulags) were located far from inhabited areas.

Solar eclipse

When the Sun, Earth, and the Moon are arranged in a straight line, the Moon can partially or completely obscure the Sun.

Kaaba (Makkah)

Located in the Grand Mosque of Makkah, the Kaaba shrine is the most sacred site of Islam.

Lunar eclipse

Lunar eclipses occur when the Moon passes through the shadow cone of Earth

Earth

The Earth is a rocky planet with a solid crust and oxygen in its atmosphere.

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