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#### 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.

#### Weapons (World War I)

World War I brought major changes in military technology, due to the development of new weapons.

#### Tropical cyclones

Cyclones are large air masses with winds spiralling inwards around a low-pressure centre, and carry clouds and precipitation.

#### Dóm Square (Szeged, Hungary)

The Votive Church of Szeged, located on the Great Plains of Hungary, emerges from the buildings of the city's famous square, while the National Pantheon can...

#### Battle of Hastings (1066)

The battle ended with the victory of William the Conqueror´s Norman army over the English.

#### Battle of Lepanto (1571)

The Ottoman fleet suffered a catastrophic defeat by the fleet of the Holy League.

#### French soldier (World War I)

During World War I France was part of the military alliance called 'Triple Entente'.

#### Giant sequoia

Giant sequoias are the world's largest living organisms by mass.

#### Motorcycle

This animation demonstrates the construction of motorcycles.

#### Forms of government and official state languages

The animation shows the forms of government and official languages of the world´s countries.

#### Soma cube

Three-dimensional assembly puzzle with solutions.

#### Prisms

This animation demonstrates several types of prisms, from general to regular.

#### Domestic dog

Dogs are the domesticated subspecies of grey wolves.

#### Volume and surface area (exercise)

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

#### How does it work? - Impulse steam turbine

This animation demonstrates the structure and operation of impulse turbines.

#### How does it work? - Combine harvester

Combine harvesters are machines that harvest and thresh grain crops.

#### How does it work? - Microwave oven

This animation demonstrates how microwave ovens work.

#### Ancient Indian war elephant

Ancient Indian war elephants were used as ´tanks´ in battles.

#### Common kingfisher

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

#### Marsh harrier

Marsh harriers are birds of prey found almost worldwide.