Pollution

Pollution is the detrimental effect of human activity on the natural environment.

Viruses

Viruses consist of protein and DNA or RNA; they reprogram infected cells to produce more viruses.

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.

Nizwa Fort (Oman, 17th century)

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

Tyrannosaurus rex ‘tyrant lizard’

Large carnivores, perhaps the best known of dinosaurs.

Volcanic activity

This animation demonstrates different types of volcanic eruptions.

Four-stroke Otto engine

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

Colosseum (Rome, 1st century)

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

The ear and the mechanism of hearing

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

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.

Seawater desalination

The desalination process produces drinking water from seawater.

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 B.C., during the Age of Pericles.

Formation of the Earth and Moon

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

Interesting geography facts – Physical geography

This animation presents some interesting facts in physical geography.

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

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

Water pollution

The main sources of water pollution are industry, agriculture and urban areas.

Metropolises

A metropolis is a large city with a population of over 1 million people.

ISS

The International Space Station is a habitable satellite built with the cooperation of 16 countries.

The human eye

The eye is one of our most important sense organs. When stimulated by light, electric impulses are produced by its receptors.

Added to your cart.