An earthquake is one of the most devastating natural phenomena.
Energy released during nuclear fission can be used for civilian or military purposes.
The Code of Hammurabi is the emblem of the Mesopotamian civilisation; it contains 282 laws carved into a basalt stele.
The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum.
Taste receptors convert chemical stimuli into electric signals.
The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum, which is divided into lobes.
Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.
Olfactory receptors produce electric signals when stimulated by odours.
This exciting and colourful game is designed to develop spatial perception. You can check your solutions using isometric views.
In mountainous areas the climate, soil properties, the flora and fauna change depending on elevation.
The intriguing history of this historic castle spans nearly a thousand years.
Rotating a geometric shape around a line within its geometric plane as an axis results in a solid of revolution.
This animation presents some animals and plants that lived between the Devonian and Permian periods (358–299 million years ago).
The three types of muscle found in the human body are the smooth, the striated and the cardiac muscle.
This animation demonstrates the fine molecular structure and mechanism of muscles.
What happens in a liquid during evaporation and boiling? What does its boiling point depend on?
Galileo Galilei's scientific achievements contributed greatly to the advancement of physics and astronomy.
The fortress-like palace was built by Roman Emperor Diocletian on the coast near his home town.
When producing sound, the vocal cords are vibrated by the air flowing out of the lung.
This animation explains the most important characteristics of waves through sound waves.