A traditional Chinese siheyuan is a building complex that surrounds a rectangular courtyard.
The Ancient Greek scientist, Euclid of Alexandria, is often referred to as the 'father of geometry'.
This scene presents the basic components of the human body.
Some principles of physics can be demonstrated through the functioning of bicycles.
The main sources of water pollution are industry, agriculture and urban areas.
Banana is one of the most commonly consumed fruits in the world.
Lasers are devices designed to emit narrow, monochromatic, high-intensity beams of light.
Horses are domesticated odd-toed ungulates that are used for many purposes.
Reindeer are the northernmost deer species.
A metropolis is a large city with a population of over 1 million people.
The development of mosses, ferns, gymnosperms and angiosperms is characterised by the alternation of generations.
This 3D introduces a centipede species widespread in the Mediterranean.
The Giant Swing is one of the symbols of Bangkok.
One of Bangkok's most famous landmarks is the Temple of Dawn, that is, Wat Arun Ratchawararam.
The eye is one of our most important sense organs. When stimulated by light, electric impulses are produced by its receptors.
The 900 years old Benedictine abbey is situated in Melk, on the right bank of the Danube.
This animation demonstrates the anatomy of spiders through the example of a common European species.
Stratovolcanoes consist of layers of volcanic ash, debris and lava.
The Earth’s magnetic North and South poles are located near the geographic North and South poles.
The ozone layer filters the Sun´s harmful UV radiation, therefore it is indispensable for life on Earth.