Humans have 4 types of teeth: incisors, canines, premolars and molars.
Bones of the upper limbs form the pectoral girdle and the arms.
This animation demonstrates geometric rotation, a type of geometric transformation both in plane and space.
The Moon is the Earth's only natural satellite
The intriguing history of this historic castle spans nearly a thousand years.
In mountainous areas the climate, soil properties, the flora and fauna change depending on elevation.
This exciting and colourful game is designed to develop spatial perception. You can check your solutions using isometric views.
Nuclear fusion will serve as an environmentally friendly and practically unlimited source of energy.
The Cassini spacecraft was exploring Saturn and its moons for nearly 20 years.
The first section of the gastrointestinal tract comprises the oral cavity, the pharynx and the oesophagus.
These great scientists had a tremendous impact on the advancement in physics.
The inner planets of the Solar System are terrestrial planets while the outer planets are gas giants.
The train operates between Paris and southern Germany, its cruise speed is 320 km/h.
The structure and arrangement of polypeptide chains affects the spatial structure of proteins.
Darwin's legendary voyage aboard HMS Beagle played a crucial role in the development of the Theory of Evolution.
The first supersonic passenger airliner entered service in 1976.
River locks make rivers with great level differences safe for boating.
This animation demonstrates the development of the human embryo and foetus.
Bacteria are unicellular organisms that have no nuclei and are a few micrometres in length.
A selection of legendary buildings from the history of civilisation.