Ancient Egyptians worshipped a large number of gods and goddesses.
The heart is the central pump of the cardiovascular system beating several billion times over our lifetime.
This animation presents some animals and plants that lived between the Devonian and Permian periods (358–299 million years ago).
Massive accelerating or orbiting bodies cause ripples in spacetime. These are called gravitational waves.
What happens in a liquid during evaporation and boiling? What does its boiling point depend on?
The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum.
The fortress-like palace was built by Roman Emperor Diocletian on the coast near his home town.
Carrier of genetic information in cells.
This animation explains the most important characteristics of waves through sound waves.
Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.
The first section of the gastrointestinal tract comprises the oral cavity, the pharynx and the oesophagus.
The skin is the soft outer covering of our body, its three layers are the epidermis, the dermis and the hypodermis.
Waves play an extremely important role in many areas of our lives.
The longest part of the digestive system, where most of the digestion and absorption takes place.
Several ingenious instruments have been invented over the centuries to help in navigating the seas.
When producing sound, the vocal cords are vibrated by the air flowing out of the lung.
Standing bodies of water can form in depressions on the surface by both endogenic and exogenic forces, as well as by human activity.
The Panama Canal is an artificial waterway created to shorten shipping routes between the Pacific Ocean and the Atlantic Ocean.
The central nervous system consists of the brain and the spinal cord, the peripheral nervous system consists of nerves and ganglia.
This physicist-inventor and electrical engineer who mainly dealt with electrotechnics was undoubtedly one of the most brilliant figures of the second...