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Pollution

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

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.

Volcanic activity

This animation demonstrates different types of volcanic eruptions.

Seawater desalination

The desalination process produces drinking water from seawater.

Tyrannosaurus rex ‘tyrant lizard’

Large carnivores, perhaps the best known of dinosaurs.

Formation of the Earth and Moon

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

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.

Four-stroke Otto engine

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

Nizwa Fort (Oman, 17th century)

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

Moon landing: July 20, 1969

Neil Armstrong, one of the crew members of Apollo 11 was the first man to set foot on the Moon.

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.

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 works of art.

Interesting geography facts – Physical geography

This animation presents some interesting facts in physical geography.

Water pollution

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

Reindeer

Reindeer are the northernmost deer species.

Hungarian alphabet game

Practice the Hungarian alphabet and form words from the letters.

Lymphatic system

Lymph vessels carry lymph to the blood vessels, while lymph nodes are integral parts of the immune system.

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