Nuclear power plants convert the energy released during nuclear fission into electric power.
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 esophagus.
The magnificent bath complex of the Roman Emperor was built in the 3rd century A.D.
Seawater, as an external force, plays an important role in shaping coastlines.
Rivers play an important role in shaping the Earth's surface: they cause erosion as well as carrying and depositing sediment.
This animation introduces body parts on a male anatomical model.
This Pacific island is famous for its unique monolithic human figures.
The English engineer George Stephenson’s locomotive was built for a competition of locomotives in 1829.
The popular model of the American automobile factory was the first mass-produced car in the world.
The Benz Patent-Motorwagen is widely regarded as the first vehicle propelled by an internal combustion engine.
This animation explains transparency and opacity, the principle of radiography, and the light-absorbing properties of materials.
This animation presents the main types of leaves and the differences between monocot and dicot leaves.
As a result of the revolutionary advances in the Neolithic, settling human communities established the first lasting settlements.
Learning about the geographic location, capitals and flags of the world´s countries through exercises in three levels of difficulty.
These Paleolithic statuettes probably symbolize fertility and prosperity.
This animation introduces the studies of astronomers and physicists whose works fundamentally changed our view of the universe.
The 900 years old Benedictine abbey is situated in Melk, on the right bank of the Danube.
A widespread snail species, also popular as food.
A mushroom is the fleshy fruiting body of a fungus, made up from hyphae.