American Treasures of the Library of Congress: Reason

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Bell's Ring Kite

Ring Kite experiments
Gilbert H. Grosvenor
Ring Kite experiments, July 7, 1908
Gelatin silver prints
Prints & Photographs Division

Alexander Graham Bell discovered that the tetrahedral truss, created from three-dimensional triangles, could support considerable weight even when constructed out of light-weight materials. Bell made extensive aerodynamic studies with these kites before attempting to build airplanes. His Aerial Experiment Association achieved the first manned flight in Canada. The Library's extensive Gilbert H. Grosvenor collection of photographs documents Bell's work and family life.

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