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Ship - Wikipedia, the free encyclopedia |
 | | One can measure ships in terms of overall length, length of the waterline, beam (breadth), depth (distance between the crown of the weather deck and the top of the keelson), draft (distance between the highest waterline and the bottom of the ship) and tonnage. |
 | | Until the application of the steam engine to ships in the early 19th century, oars propelled galleys or the wind propelled sailing ships. |
 | | Before mechanisation, merchant ships always used sail, but as long as naval warfare depended on ships closing to ram or to fight hand-to-hand, galleys dominated in marine conflicts because of their maneuverability and speed. |
| en.wikipedia.org /wiki/Ship (2597 words) |
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