Threshing machine (19th century)

Threshing machines are used for separating grains from straw.

Hovercraft, SR.N4 Mk.III

Hovercraft are capable of travelling at high speed above the surface of water.

Marsh harrier

Marsh harriers are birds of prey found almost worldwide.

Battle of Trafalgar (1805)

The British Royal Fleet led by Admiral Lord Nelson defeated the combined Franco-Spanish fleet in the naval battle during the Napoleonic Wars.

Common kingfisher

The characteristic colours of the common kingfisher aid the bird in catching its prey.

The development of freight transport

This animation demonstrates the development of freight transport, from horse-drawn carts to modern lorries.

How does it work? - Microwave oven

This animation demonstrates how microwave ovens work.

Carbon dioxide (CO₂) (intermediate)

Colourless, odourless, heavier-than-air gas. Necessary for the photosynthesis of plants.

Refugee camp in Africa (Darfur)

Because of the military conflict in Sudan, millions of people had to flee their homes.

Battle of Alesia (52 BC)

The Gaul city Alesia, which was defended by Vercingetorix, was besieged by the Roman forces of Julius Caesar in 52 BC.

European ground squirrel

Subterranean rodents widespread in Central- and Eastern Europe.

Torsion balances

A force can be measured by measuring the twisting of the torsion wire in a torsion balance.

Macedonian phalangite (4th century BC)

Soldiers of the ancient Macedonian Kingdom were dreaded warriors.

Four colour theorem

Colour a map with the fewest number of colours possible, so that no two adjacent regions have the same colour.

Emergency landing in the Sahara (Little Prince)

The emergency landing of the pilot appears in the frame story of Antoine de Saint-Exupéry´s most famous novel, The Little Prince.

Battle of Midway (1942)

One of the most important battles of World War II proved to be a turning point of the War in the Pacific

Nitrogen (N₂) (intermediate)

A colourless, odourless, non-reactive gas, it constitutes 78.1% of Earth´s atmosphere.

Volume and surface area (exercise)

An exercise about the volume and surface area of solids generated from a ´base cube´.

The chapel of Notre-Dame-du-Haut (1950, Ronchamp, France)

A pilgrimage chapel designed by the French architect Le Corbusier, one of the greatest architects of the 20th century.

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