Technology
Ships and boats
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Modern ships
In the middle of the twentieth century, steam power began to give way to diesel power. Diesel engines are smaller, cleaner, far more efficient, and need fewer crew to operate them...
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Submarines
A submarine is a vessel that can travel submerged under the water as well as on the surface. A submarine has extremely strong hull to resist the pressure deep under water. Most...
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Ships and submarines A-Z
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History of sailing ships
The first sailing boats had single masts with square sails fixed to them. Over the centuries, boatbuilders arranged their boats' sails, called the rig, in various ways designed to...
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History of steamships
During the later 19th century, large sailing ships almost completely disappeared as steam power took over. The first successful steam-powered vessels were built for use on canals...
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History of ships A-Z
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