Nizwa Fort (Oman, 17th century)

The round tower of the largest fort in the Arabian Peninsula had an ingenious defence system.

Acropolis (Athens, 5th century BC)

The world's most famous citadel, the Acropolis of Athens was built in the 5th century BC, during the Age of Pericles.

Tyrannosaurus rex ‘tyrant lizard’

Large carnivores, perhaps the best known of dinosaurs.

Perimeter, area, surface area and volume

This animation presents the formulas to calculate the perimeter and area of shapes as well as the surface area and volume of solids.

Formation of the Earth and Moon

This animation demonstrates how the Earth and the Moon were formed.

The ear and the mechanism of hearing

The ear converts the vibrations of air into electric signals which are then processed by the brain.

Human body (male)

This animation introduces the most important organ systems of the human body.

Four-stroke Otto engine

This animation demonstrates the type of engine most commonly used in cars.

Hagia Sophia (Istanbul)

The church of the 'Holy Wisdom', built in the Byzantine Empire, had been one of the largest religious buildings until 1935, when it was converted into a museum.

Seawater desalination

The desalination process produces drinking water from seawater.

Volcanic activity

This animation demonstrates different types of volcanic eruptions

Colosseum (Rome, 1st century)

The most famous and most magnificent amphitheatre of Rome was built in the 1st century.

Leonardo da Vinci’s workshop (Florence, 16th century)

Visit the workshop of the Renaissance polymath and his most influential inventions and works of art.

Voyager space probes

The Voyager space probes were the first man-made objects to leave the Solar System. They gather data about outer space and carry information about humanity.

The Alhambra in the 16th century (Spain)

The name of this magnificent palace complex originates in Arabic and means 'the red one'.

The Moon

The Moon is the Earth's only natural satellite

The Forbidden City (Beijing, 17th century)

The Forbidden City is one of the most magnificent and mysterious monuments of imperial China.

Evaporation and boiling

What happens in a liquid during evaporation and boiling? What does its boiling point depend on?

Magnetron

One of the most important components of the microwave oven is the magnetron, which produces the microwaves.

Palaeolithic cave

The first dwellings in human history provide a lot of information about the lifestyle of our ancestors.

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