Hagia Sophia (Istanbul)

The church of the "Holy Wisdom," built in the Byzantine Empire, had been one of the...

Colosseum (Rome, 1st century)

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

Perimeter, area, surface area and volume

This animation presents the formulas to calculate the perimeter and area of shapes as...

Acropolis (Athens, 5th century B.C.)

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

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.

Seawater desalination

The desalination process produces drinking water from seawater.

Volcanic activity

This animation demonstrates different types of volcanic eruptions.

Formation of the Earth and Moon

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

Tyrannosaurus rex ‘tyrant lizard’

Large carnivores, perhaps the best known of dinosaurs.

The ear and the mechanism of hearing

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

The Suez Canal

The Suez Canal is an artificial waterway connecting the Red Sea and the Mediterranean Sea.

Legendary buildings

A selection of legendary buildings from the history of civilisation.

Deep Sea Hydrothermal Vents

A hydrothermal vent is a fissure in the planet's surface from which geothermally...

The Panama Canal

The Panama Canal is an artificial waterway created to shorten shipping routes between...

American bison

The American bison is the largest land animal in North America.

Great Mosque of Djenné (1907)

The mosque, built in a distinctive architectural style, is the largest adobe structure...

Thermometers

There are various types of instruments used for measuring temperature.

The Zuiderzee Works and the Delta Works (Netherlands)

Remarkable civil engineering works to continue the Netherland's centuries-long fight...

Ratio of volumes of similar solids

This 3D scene explains the correlation between the ratio of similarity and the ratio...

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