The ear and the mechanism of hearing

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

Tyrannosaurus rex ‘tyrant lizard’

Large carnivores, perhaps the best known of dinosaurs.

Hagia Sophia (Istanbul)

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

Four-stroke Otto engine

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

Volcanic activity

This animation demonstrates different types of volcanic eruptions.

Seawater desalination

The desalination process produces drinking water from seawater.

Perimeter, area, surface area and volume

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

Formation of the Earth and Moon

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

Human body (male)

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

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

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

Colosseum (Rome, 1st century)

The most famous and most magnificent amphitheater 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...

Paleolithic cave

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

Quetzalcoatlus, a giant pterosaur

Quetzalcoatlus was one of the largest known flying animals of all time.

Unmanned aerial vehicles (UAV)

The range of applications of unmanned aerial vehicles ('drones') keeps growing.

Respiratory system

The respiratory system is responsible for the intake of oxygen and the release of carbon...

Nose, the mechanism of smelling

Olfactory receptors produce electric signals when stimulated by odors.

Muscle tissues

The three types of muscle found in the human body are the smooth, the striated and the...

Parts of the human brain

The main parts of the human brain are the brain stem, the cerebellum, the diencephalon,...

Mars Exploration Program

Space probes and Mars rovers examine the structure of Mars and possible traces of life.

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