By A Mystery Man Writer
The idea of using sails to power a boat is not exactly a new one; indeed, the earliest known depiction of a ship under sail appears on a painted disc found in Kuwait, dated back to somewhere between 5,000-5,500 BCE. Boats themselves, interestingly, appear to be closer to a million years old, and were used by homo erectus long before neanderthals or homo sapiens ever walked the Earth.
Wind Powered Cargo Ship Meme
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Why do warships use motors/engines instead of sails? Is it because modern ships require a significant amount of energy to operate solely on sailing power? - Quora
The Oceanbird with rigid wing sails. Reprinted with permission of