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kach22i kach22i is offline
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Alexander Graham Bell's Tetrahedral Kites
https://www.amusingplanet.com/2017/10/alexander-graham-bells-tetrahedral-kites.html





Alexander Graham Bell and Aviation Through the Years
https://agbfoundation.ca/aviation/

Quote:
He developed the tetrahedral cell with aerodynamic lift and tested a variety of kites formed with these cells. His “Cygnet” kite flew for seven minutes at a height of 168 feet with a man on board in 1907.
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Last edited by kach22i; 04-22-2021 at 12:07 PM..
Old 04-22-2021, 12:03 PM
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