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This photo is from National Geographic Photography Milestones
Inventions
Photograph by Bell Collection
Inventor and early National Geographic Society President Alexander Graham Bell created this tetrahedral truss kite, designed with three-dimensional triangles that could support considerable weight, in order to study aerodynamic design before attempting to build airplanes. Together with new National Geographic Editor Gilbert H. Grosvenor, Bell steered the magazine in a new direction, favoring more photography and popular coverage.
