Comparative plans of English Gothic Cathedrals
A History of Architecture on the Comparative Method by Sir Banister Fletcher
Prof. Dr, Max Bruckner, Four Plates from the Book “Vielecke und Vielflache”, (1900)
Regular convex polyhedra, frequently referenced as “Platonic” solids, are featured prominently in the philosophy of Plato, who spoke about them, rather intuitively, in association to the four classical elements (earth, wind, fire, water… plus ether). However, it was Euclid who actually provided a mathematical description of each solid and found the ratio of the diameter of the circumscribed sphere to the length of the edge and argued that there are no further convex polyhedra than those 5: tetrahedron, hexahedron (also known as the cube), octahedron, dodecahedron and icosahedron.
Expo 67 Theme Pavilions - Man in the Community | Man and his Health, Montreal, Quebec, Canada
Designed in 1965 by Arthur Erickson