The surface of a sphere consists of the set of points which are all at the same distance from a given point in space.
The small passenger aircraft is designed for speed, convenience and economical operation.
Amino acids that make up proteins are bound by peptide bonds.
During World War I, Britain was part of the military alliance called the ´Triple Entente´.
The Rietveld Schröder House, located in the town of Utrecht in the Netherlands, can be considered a forerunner of modern houses.
Television, invented in the early 20th century, became one of the basic forms of entertainment.
German sordiers in the First World War were well trained and used modern weapons.
The Jumbo Jet is one of the best known airliners.
Burj Al Arab, the world's only seven-star luxury hotel is located in the United Arab Emirates.
Calculating the volume of a sphere is possible using an appropriate cylinder and cone.
One of the crystalline allotropes of elemental carbon.
Crystalline allotrope of elemental carbon, the hardest known natural substance.
The excellent archers were feared members of the Persian army
The poisonous bite of the Chilean recluse spider poses a serious threat to human health.
Villages were the first permanent human settlements
Groups of western jackdaws are frequently found in cities. Konrad Lorenz analysed the complex social behaviour of these animals.
Change of light conditions in different seasons. Measuring height using shadows.
A prehistoric amphibian and an early representative of the Tetrapods, which became extinct 360 million years ago.
The brain and skull underwent significant changes during human evolution.
One of the most important parts of a medieval castle was the Knights´ hall.