一枚の特選フォト「海 & 船」
ブッシュネル(Bushnell)の潜水器「タートル(Tortoise)」(その2)
In 1774, the American David Bushnell (1742-1826) has perfected and build this "Tortoise", the first submarine.
He was also the first to use a propeller to propulse a ship. This submarine actually sailed underwater and
was used against English ships during the American War of Independence. [2006.12.モナコ海洋博物館にて][拡大画像: x16220.jpg]
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