Types of bridges
Types of bridges include beam-, arch-, suspension-, cantilever and truss bridges.
Buses play an important role in public transportation.
Schooners, first built in the Netherlands in the 17th century, were mainly used as...
This animation demonstrates the construction of a fire engine.
This animation demonstrates the equipment of a police patrol car.
The legendary M61 class locomotives of the Hungarian State Railways were called NOHAB.
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
HMS Dreadnought revolutionized battleship-building in the 20th century.