The largest bronze-age building complex of ancient Crete was probably the centre of Minoan civilisation.
The heart generates the electrical impulses necessary for its own operation. The graphic representation of the electrical activity of the heart is the...
3-dimensional Cartesian coordinate system with illustrations and exercises that develop spatial perception.
The Earth’s magnetic North and South poles are located near the geographic North and South poles.
The ancient Inca city, located in present-day Peru, is a World Heritage Site.
The atomic bomb is one of the most destructive weapons in human history.
The ozone layer filters the Sun´s harmful UV radiation, therefore it is indispensable for life on Earth.
The structure and arrangement of polypeptide chains affects the spatial structure of proteins.
Stratovolcanoes consist of layers of volcanic ash, debris and lava.
The bacterial disease known as the bubonic plague is one of the deadliest infectious diseases in the history of mankind.
The German engineer Rudolf Diesel patented the diesel engine in 1893.
This creative animation contains several 3D objects for colouring.
The animation helps to develop space perception.
The animations demonstrates the structure of a typical flower.
The spinal cord is the part of the central nervous system running inside the spinal column from which spinal nerves branch out.
The huge dam built on the Colorado river in the US was named after a former American President.
This animations demonstrates the exterior and interior construction of cars, as well as their operation.
This animation shows the symptoms and treatment of secretory otitis media.
A type of steam locomotives used by British Railways were manufactured in the 1950s.
A dynamo converts mechanical energy into direct current.