La "Tortue" de Bushnell : 無料・フリー素材/写真
La "Tortue" de Bushnell / Axel Bührmann
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | Inside the Monaco Oceanographic Museum and Aquarium.The first American submarine was designed before the Revolutionary War by David Bushnell, a young inventor from Connecticut. He designed and built a one-man submersible vessel that he called Turtle. Bushnell's Turtle featured a hand-cranked screw-like oar that moved the boat forward and back underwater, air pipes that brought fresh air into the boat, ballast tanks that took on water to dive and emptied to ascend, and a primitive torpedo to attack enemy ships.Encouraged by George Washington and Thomas Jefferson, Bushnell adapted his vessel to use against the British during the war. Turtle was sent to New York harbor in September 1776 to surprise the British ships blockading the city. Turtle's pilot Ezra Lee crept up on HMS Asia and attempted to attach explosives to the side of the wooden ship, but failed to do so before losing control of the boat.Lee escaped, but tried again to attack the British one month later without success. Despite Turtle's failures, Bushnell proved that a boat could be used for underwater surprise attacks.www.history.navy.mil/branches/teach/dive/hist1.htm |
| 撮影日 | 2006-09-16 16:26:11 |
| 撮影者 | Axel Bührmann , Here, South Africa |
| タグ | |
| 撮影地 | Monaco, La Condamine, Monaco 地図 |