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The Tesla Model S is one of the first commercially available electric cars.
Christopher Columbus' three-masted carrack, the Santa Maria was the flagship of his...
Oil tankers appeared in the late 19th century; today they are among the largest ships.
Combining a conventional internal combustion engine propulsion system with an electric...
The German engineer Otto Lilienthal was the first person to make successful flights with...
This animation demonstrates the construction of a fire engine.
Types of bridges include beam-, arch-, suspension-, cantilever and truss bridges.
Lighthouses are used as an aid to navigation in coastal waters.