Mechanical bell that functions by means of an electromagnet.
African villages adapt to the natural environment well and reflect of the culture of local tribes.
Nuclear power plants convert the energy released during nuclear fission into electric power.
The heart is the central pump of the cardiovascular system beating several billion times over our lifetime.
Taste receptors convert chemical stimuli into electric signals.
The fortress-like palace was built by Roman Emperor Diocletian on the coast near his home town.
The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum.
Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.
Carrier of genetic information in cells.
Deforestation has a negative impact on the environment.
This animation presents some animals and plants that lived between the Devonian and Permian periods (358-299 million years ago).
The longest part of the digestive system, where most of the digestion and absorption takes place.
This animation explains the most important characteristics of waves through sound waves.
Standing bodies of water can form in depressions on the surface by both endogenic and exogenic forces, as well as by human activity.
When producing sound, the vocal cords are vibrated by the air flowing out of the lung.
Massive accelerating or orbiting bodies cause ripples in spacetime. These are called gravitational waves.
The first section of the gastrointestinal tract comprises the oral cavity, the pharynx and the oesophagus.
Waves play an extremely important role in many areas of our lives.
The central nervous system consists of the brain and the spinal cord, the peripheral nervous system consists of nerves and ganglia.
The skin is the soft outer covering of our body, its three layers are the epidermis, the dermis and the hypodermis.