The evolution of data storage

The capacity of data storage devices have increased at an incredible rate during the past decades.

Nitrous acid (HNO₂)

One of the oxoacids of nitrogen. Colourless, moderate acid with a pungent odour, that exists only in aqueous solution.

Types of surface epithelium

Surface epithelia cover the external and internal surfaces of the body

European badger

The European badger is an omnivorous, nocturnal animal. Badger colonies live in large burrow systems, called setts.

Hexagonal metallic lattice

Metals forming hexagonal metallic lattices are rigid and difficult to machine.

Hubble Space Telescope

The Hubble Space Telescope orbits outside the distorting influence of Earth´s atmosphere.

How does it work? - Differential gear

A differential allows the driven wheels of a car to rotate at different speeds when the car is turning.

Phốtpho pentôxít (P₂O₅)

Một hợp chất hình thành dưới dạng khói trắng khi đốt phốtpho.

The Cave of Altamira

The world-famous limestone cave with its amazing cave paintings is one of the most important archaeological sites of Palaeolithic art.

Airport

Airports provide infrastructure and services necessary for aviation.

Fat-tailed scorpion

The fat-tailed scorpion is one of the world's most dangerous scorpions.

Sailing ships

Schooners, first built in the Netherlands in the 17th century, were mainly used as merchant ships.

Torii (gateway) of the Itsukushima Shrine

The torii is a traditional Japanese gate built at the entrance of shrines.

Types of bridges

Types of bridges include beam-, arch-, suspension-, cantilever and truss bridges.

Wind power station

Wind power stations convert the kinetic energy of the wind into electricity.

North River Steamboat (Clermont) (1807)

Robert Fulton American engineer created the first operational steam-powered ship.

Optical isomerism

Mirror image isomers of asymmetrical shapes and solids are non-superimposable.

Stirling engine - hot-air engine

Stirling engines are also known as external combustion engines. Unlike internal combustion engines (e.g. Otto-engine), here combustion takes place outside...

Fokker Dreidecker I (1917)

The German triplane was perhaps the best known plane in World War I.

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