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The Canadian helicopter is one of the most widely used helicopters in the world.
The fastest track-based means of urban transportation.
Robert Fulton American engineer created the first operational steam-powered ship.
The Wright Flyer was the first successful powered, heavier-than-air aircraft, designed and built...
The Benz Patent-Motorwagen is widely regarded as the first vehicle propelled by an internal...
Garbage trucks play an important role in the life of towns and cities.
This animation demonstrates how sonar works.
Combining a conventional internal combustion engine propulsion system with an electric...