Massive accelerating or orbiting bodies cause ripples in spacetime. These are called...
Large carnivores, perhaps the best known of dinosaurs.
This animation demonstrates different types of volcanic eruptions
Visit the workshop of the Renaissance polymath and his most important inventions and works of art.
The most famous and most magnificent amphitheatre of Rome was built in the 1st century.
This animation demonstrates how the Earth and the Moon were formed.
Ears convert the vibrations of air into electric signals which are then processed by the brain.
A spectacular demonstration of algebraic expressions.
The world´s most famous citadel, the Acropolis of Athens was built in the 5th century BC, during...
This animation introduces the most important organ systems of the human body.
This animation demonstrates the type of engine most commonly used in cars.
The church of the ´Holy Wisdom´, built in the Byzantine Empire, had been one of the largest...
The desalination process produces drinking water from seawater.
Several ingenious instruments have been invented over the centuries to help in navigating the seas.
Standing bodies of water can be formed in depressions on the surface by both endogenic and...
Waves play an extremely important role in many areas of our lives.
This animation presents some animals and plants that lived between the Devonian and Permian...
Deforestation has a negative impact on the environment.
Organs that detect signals of the environment or of the body and transmit them to the brain as...
The axolotl, also known as Mexican salamander, is an amphibian species that keeps its gills even...