A spectacular demonstration of algebraic expressions.
Large carnivores, perhaps the best known of dinosaurs.
This animation demonstrates different types of volcanic eruptions.
This animation demonstrates how the Earth and the Moon were formed.
This animation introduces the most important organ systems of the human body.
Ears convert the vibrations of air into electric signals which are then processed by the brain.
This animation demonstrates the type of engine most commonly used in cars.
The most famous and most magnificent amphitheater of Rome was built in the 1st century.
The desalination process produces drinking water from seawater.
The world´s most famous citadel, the Acropolis of Athens was built in the 5th century BC, during...
Visit the workshop of the Renaissance polymath and his most important inventions and works of art.
The church of the ´Holy Wisdom´, built in the Byzantine Empire, had been one of the largest...
Soviet labor camps (Gulags) were located far from inhabited areas.
Located in the Grand Mosque of Makkah, the Kaaba shrine is the most sacred site of Islam.
This animation demonstrates the development of the human embryo and fetus.
Human blood consists of blood cells and plasma.
The ancient Roman arena became well-known for the chariot races held here.
Christopher Columbus’ three-masted carrack, the Santa Maria was the flagship of his first,...
This animation demonstrates the parts of the head, the trunk and the limbs.
Our heart generates the electrical impulses necessary for its own operation. The graphic...