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Satellite types

Satellites orbiting the Earth can be used for civilian or military purposes.

Space Shuttle

The Space Shuttle was a manned, reusable spacecraft operated by NASA.

Battleship (HMS Dreadnought, 1906)

HMS Dreadnought revolutionised battleship-building in the 20th century.

Electricity supply network

The purpose of the electricity supply network is to provide electricity for consumers.

Venice in the Middle Ages

Medieval Venice owed its wealth to its flourishing maritime trade.

Glacier (intermediate)

A glacier is a large body of ice that forms from snow, and is in constant, slow motion.

Tidal power station

Tidal power stations utilise the daily fluctuation of the water level for producing electricity.

How does it work? - Ballpoint pen

The invention of the ballpoint pen made writing a lot easier.

Aerodynamic lift

Due to their asymmetrical profile of the wings, lift is produced while flying at a high speed.

Submarine operation

Submarines submerge and surface by changing the average density of the hull.

Ancient Roman military camp

As the Roman Empire expanded, military camps were established on the newly conquered territories.

Thermal expansion of bridges

The length of the metal frameworks of bridges change when the temperature changes.

Transport networks

The animation presents the main air, water and land routes and transport hubs.

Geothermal power station

Geothermal power stations convert energy of hot, high-pressure water found in deeper layers of the Earth into electricity.

Constructing shapes (3D)

Building 3D shapes into a given cube mesh with the help of several views.

Thermal power station (hydrocarbon fuel)

Thermal power stations convert energy released during the combustion of fossil fuels or renewable resources into electricity.

Evolution of the bicycle

The changing bicycle, at first mocked as a toy, is a true mirror of the technical development over the last three centuries.

Safety equipment of bicycles

The highway code contains rules concerning the safety equipment of bicycles.

Operation of oil wells

Machinery that pumps crude oil to the surface

Hero’s aeolipile

Hero of Alexandria is the inventor of the first steam engine, although he regarded it as an entertaining toy.

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