Short-lived but extremely powerful tornadoes can cause a great deal of damage.
These great scientists had a tremendous impact on the advancement in physics.
Deforestation has a negative impact on the environment.
This animation demonstrates the structure and operation of electron microscopes.
A wooden church built in the 12th-13th centuries, the best preserved of Norway´s stave churches.
The double-decked, wide-bodied passenger aircraft can carry more then 500 passengers.
The position and acceleration of the head is detected by the inner ear.
Comets are spectacular celestial bodies orbiting the Sun.
Matter is made up by quarks and leptons, while interactions are carried by bosons.
Cannons also appeared in naval warfare.
Our gametes are haploid cells produced from diploid cells by meiosis, a special type of cell division.
This scene summarizes the main organs of the human body.
Wind, as an external force, plays an important role in shaping deserts.
The information gathered by the eye is misinterpreted by the brain.
The two groups of angiosperms are monocots and dicots.
The Parisian prison became legendary after the Revolution of 1789.
The Troll A is an offshore natural gas platform, the largest offshore platform ever built: it rises about 170 metres above water level, weighs 656,000...
This animation presents some animals and plants that lived between the Devonian and Permian periods (358–299 million years ago).
What happens in a liquid during evaporation and boiling? What does its boiling point depend on?
Located in the Grand Mosque of Makkah, the Kaaba shrine is the most sacred site of Islam.