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The German triplane was perhaps the best known plane in World War I.
The Canadian helicopter is one of the most widely used helicopters in the world.
Types of bridges include beam-, arch-, suspension-, cantilever and truss bridges.
The train operates between Paris and southern Germany, its cruise speed is 320 km/h.
A floatplane (sometimes called hydroplane) is an aircraft capable of taking off not only...
The changing bicycle, at first mocked as a toy, is a true mirror of the technical...
This animation demonstrates the equipment of a police patrol car.
The legendary M61 class locomotives of the Hungarian State Railways were called NOHAB.