A geodesic
dome is a structure made of struts that are connected to approximate the
shape of a sphere (or part of a sphere). Spaceship Earth at EPCOT in
Walt Disney World, Florida, is a famous example of a geodesic dome that
is a complete sphere shape.
Typically, the struts of a geodesic dome are joined together in
triangles, with the points of the triangles being approximately on the
sphere’s surface. The edges of the triangles form great circle-like
shapes, or geodesics, over the surface of the dome. The struts form a
rigid network that transmits stress forces throughout the structure.