Expo 67 pavilions Expo 67 pavilions The Expo 67 International and Universal Exposition featured 90 pavilions representing Man and His World, on a theme derived from , written by the famous French pilot Antoine de Saint-Exupéry. The exposition displayed many nations, corporations, industries, technologies, social themes, religions and designs, including the US pavilion, a geodesic dome designed by Buckminster Fuller. Expo 67 also featured Habitat 67, an urban modular housing complex designed by architect Moshe Safdie, whose units were purchased by private Montrealers after the fair was concluded, and is still occupied today. The most popular display of the exposition was the soaring
Solving the geodesic equations bypassing a tedious calculation of Christoffel symbols. Solving the geodesic equations Solving the geodesic equations is a procedure used in mathematics, particularly Riemannian geometry, and in physics, particularly in general relativity, that results in obtaining geodesics. Physically, these represent the paths of (usually ideal) particles with no proper acceleration, their motion satisfying the geodesic equations. Because the particles are subject to no proper acceleration, the geodesics generally represent the straightest path between two points in a curved spacetime. On an "n"-dimensional Riemannian manifold formula_1, the geodesic equation written in a coordinate chart with coordinates formula_2 is: where the coordinates "x"("s")