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A geodesic dome is a hemispherical thin-shell structure (lattice-shell) based on a geodesic polyhedron. The rigid triangular elements of the dome distribute stress throughout the structure, making geodesic domes able to withstand very heavy loads for their size.
Geodesic dome (Montreal Biosphere, Canada) Geodesic domes are the upper portion of geodesic spheres. They are composed of a framework of triangles in a polyhedron pattern. [74] The structures are named for geodesics and are based upon geometric shapes such as icosahedrons, octahedrons or tetrahedrons.
The geodesic dome was designed by Thomas C. Howard, the owner of Synergetics, Inc., in Raleigh, North Carolina. Thomas C. Howard designed many other geodesic domes, such as Climatron Conservatory at Missouri Botanical Gardens, the Union Tank Car Company dome (now demolished) in Baton Rouge, LA, and Poliedro de Caracas in Venezuela.
Geodesic polyhedra are a good approximation to a sphere for many purposes, and appear in many different contexts. The most well-known may be the geodesic domes, hemispherical architectural structures designed by Buckminster Fuller, which geodesic polyhedra are named after. Geodesic grids used in geodesy also have the geometry of geodesic polyhedra.
Geodesic domes are typically based on triangular facetings of this geometry with example structures found across the world, popularized by Buckminster Fuller. An example can be found in the model of a buckminsterfullerene, a truncated icosahedron-shaped geodesic dome allotrope of elemental carbon discovered in 1985. [17]
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Bloedel Floral Conservatory, one of the earliest Triodetic domes. Triodetic connectors were invented in 1955 by the Canadian Arthur E. Fentiman (1918–93), and patented in 1958. [1] [2] The system was developed further by A. E. Fentiman's brother, Harold Gordon ("Bud") Fentiman (1921–86) and was in commercial use by 1960.
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