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Satellites orbiting the Earth can be used for civilian or military purposes.
The Space Shuttle was a manned, reusable spacecraft operated by NASA.
HMS Dreadnought revolutionised battleship-building in the 20th century.
The purpose of the electricity supply network is to provide electricity for consumers.
Medieval Venice owed its wealth to its flourishing maritime trade.
A glacier is a large body of ice that forms from snow, and is in constant, slow motion.
Tidal power stations utilise the daily fluctuation of the water level for producing electricity.
The invention of the ballpoint pen made writing a lot easier.
Due to their asymmetrical profile of the wings, lift is produced while flying at a high speed.
Submarines submerge and surface by changing the average density of the hull.
As the Roman Empire expanded, military camps were established on the newly conquered territories.
The length of the metal frameworks of bridges change when the temperature changes.
The animation presents the main air, water and land routes and transport hubs.
Geothermal power stations convert energy of hot, high-pressure water found in deeper layers of the Earth into electricity.
Building 3D shapes into a given cube mesh with the help of several views.
Thermal power stations convert energy released during the combustion of fossil fuels or renewable resources into electricity.
The changing bicycle, at first mocked as a toy, is a true mirror of the technical development over the last three centuries.
The highway code contains rules concerning the safety equipment of bicycles.
Machinery that pumps crude oil to the surface
Hero of Alexandria is the inventor of the first steam engine, although he regarded it as an entertaining toy.