This animation demonstrates how solar energy can be utilised.
The capacity of data storage devices have increased at an incredible rate during the past decades.
One of the oxoacids of nitrogen. Colourless, moderate acid with a pungent odour, that exists only in aqueous solution.
Surface epithelia cover the external and internal surfaces of the body
The European badger is an omnivorous, nocturnal animal. Badger colonies live in large burrow systems, called setts.
Metals forming hexagonal metallic lattices are rigid and difficult to machine.
The Hubble Space Telescope orbits outside the distorting influence of Earth´s atmosphere.
A differential allows the driven wheels of a car to rotate at different speeds when the car is turning.
Một hợp chất hình thành dưới dạng khói trắng khi đốt phốtpho.
The world-famous limestone cave with its amazing cave paintings is one of the most important archaeological sites of Palaeolithic art.
Airports provide infrastructure and services necessary for aviation.
The fat-tailed scorpion is one of the world's most dangerous scorpions.
Schooners, first built in the Netherlands in the 17th century, were mainly used as merchant ships.
The torii is a traditional Japanese gate built at the entrance of shrines.
Types of bridges include beam-, arch-, suspension-, cantilever and truss bridges.
Wind power stations convert the kinetic energy of the wind into electricity.
Robert Fulton American engineer created the first operational steam-powered ship.
Mirror image isomers of asymmetrical shapes and solids are non-superimposable.
Stirling engines are also known as external combustion engines. Unlike internal combustion engines (e.g. Otto-engine), here combustion takes place outside...
The German triplane was perhaps the best known plane in World War I.