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As a milestone in the history of aviation, Oszkár Asboth´s first helicopter made its...
A type of steam locomotives used by British Railways were manufactured in the 1950s.
Types of bridges include beam-, arch-, suspension-, cantilever and truss bridges.
The submarine designed by the Spanish inventor Narcís Monturiol was a pioneering work in...
Lighthouses are used as an aid to navigation in coastal waters.
RMS Titanic was the largest passenger ship at the beginning of the 20th century
The changing bicycle, at first mocked as a toy, is a true mirror of the technical...
HMS Dreadnought revolutionised battleship-building in the 20th century.