or log in
Types of bridges include beam-, arch-, suspension-, cantilever and truss bridges.
As a milestone in the history of aviation, Oszkár Asboth´s first helicopter made its...
The train operates between Paris and southern Germany, its cruise speed is 320 km/h.
The legendary M61 class locomotives of the Hungarian State Railways were called NOHAB.
The most popular European-made transport aircraft before World War II.
The German triplane was perhaps the best known plane in World War I.
This animations demonstrates the exterior and interior construction of cars, as well...
This animation demonstrates how sonar works.