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HMS Dreadnought revolutionized battleship-building in the 20th century.
The first supersonic passenger airliner entered service in 1976.
This animations demonstrates the exterior and interior construction of cars, as well as...
Garbage trucks play an important role in the life of towns and cities.
A floatplane (sometimes called hydroplane) is an aircraft capable of taking off not only...
This animation demonstrates the construction of a fire engine.
This animation demonstrates how sonar works.
Heavy trucks play an important role in transportation.