Why Are There Locks on Some Canals and Rivers?
Locks are watertight chambers which enable boats to ascend or descend to different levels in a canal or river. The lock is usually rectangular in shape with gates at...
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What Is the Longest River in the World?
What Is the Longest River in the World? The Nile River is the world’s longest river. It flows more than 4,160.08 miles (6,695 kilometers) from its source in...
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What Is the Difference Between Boats and Ships?
What Is the Difference Between Boats and Ships? Today, the word “ship” usually means any large vessel that can cross an ocean under its own power. Small...
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