The bacterial disease known as the bubonic plague is one of the deadliest infectious diseases in the history of mankind.
The life cycle of vertebrates starts with the production of the reproductive cells of an individual and ends with the production of the reproductive cells...
Typical settlements of the Norsemen were not only established in Scandinavia, they appeared on distant areas as well.
Napoleon I, who crowned himself emperor, was one of the most outstanding military commanders in history.
This animations demonstrates the exterior and interior construction of cars, as well as their operation.
This animation demonstrates how a turbojet engine works.
This exciting and colourful game is designed to develop spatial perception. You can check your solutions using isometric views.
A Zeppelin is a type of rigid-framed airship.
In mountainous areas the climate, soil properties, the flora and fauna change depending on elevation.
This animation explains active and passive transport processes occurring through cell membranes
The rise and drop of sea levels caused by the gravitational force of the Moon.
Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.
Vertical forces can break up layers of rock into fault blocks, which then move vertically along the fracture planes.
The intriguing history of this historic castle spans nearly a thousand years.
Hotspots are areas of the Earth´s crust where magma often rises to the surface and causes volcanic activity.
Galileo Galilei's scientific achievements contributed greatly to the advancement of physics and astronomy.
Formula 1 is the highest class and most popular type of motor racing.
A type of steam locomotives used by British Railways were manufactured in the 1950s.
The device that transmits human voice as electrical signals was invented by Bell in 1876.
The information gathered by the eye is misinterpreted by the brain.