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A spectacular demonstration of algebraic expressions.
Large carnivores, perhaps the best known of dinosaurs.
The desalination process produces drinking water from seawater.
This animation introduces the most important organ systems of the human body.
This animation demonstrates the type of engine most commonly used in cars.
Ears convert the vibrations of air into electric signals which are then processed by the brain.
This animation demonstrates how the Earth and the Moon were formed.
The church of the ´Holy Wisdom´, built in the Byzantine Empire, had been one of the largest...
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.
This animation presents some animals and plants that lived between the Devonian and Permian...
Waterfalls form where the river flows over a steep precipice in its course.
The Hussites mastered the use of war wagons in the 15th century.
The majority of today's Slavs are classified into three major groups.
Located in the Grand Mosque of Makkah, the Kaaba shrine is the most sacred site of Islam.
This animation demonstrates the structure and operation of electron microscopes.
The respiratory system is responsible for the intake of oxygen and the release of carbon dioxide.