Neptune is the outermost planet of the Solar System, the smallest of the giant planets
A mobile, nuclear-capable ballistic missile developed at the end of the Cold War.
Spitfire was a legendary British single-seat military aircraft used in World War II.
Neurons are cells specialized for transmitting electric signals.
The urinary system serves for the removal of harmful and useless materials from the body.
Bones of the lower limbs are connected to the trunk by the pelvis.
Machinery that pumps crude oil to the surface
Thermal power stations convert energy released during the combustion of fossil fuels or renewable resources into electricity.
The German engineer Otto Lilienthal was the first person to make successful flights with a glider designed by himself.
The cathedral named after the Assumption of Mary into Heaven is one of the gems of French Gothic architecture.
Polymerized ethylene is known as polyethylene, a type of plastic.
During freezing hydrogen bonds are formed between water molecules resulting in a crystal structure.
Common salt is dissolved by water: polar water molecules form a coat around the ions.
The most important Neoclassicist building in France, completed in 1791, became the final resting place of many of France´s greats.
The first indoor theater in modern history to be constructed according to the theater-building codes of Antiquity was inaugurated in 1585.
The length of the metal frameworks of bridges change when the temperature changes.
Geothermal power stations convert energy of hot, high-pressure water found in deeper layers of the Earth into electricity.
Submarines submerge and surface by changing the average density of the hull.
High speed generates a lift on airplane wings due to their asymmetrical profile.
An entertaining animation to practice orientation using a map.