Category: Geometry Page 10 of 168
The Regular Tetrahedron The seven symmetry axes of the regular tetrahedron are of two types: vertex-to-face and edge-to-edge. Take these axes as the "points" of a Fano plane….
For the late novelist P. D. James, author of, among other things, The Children of Men . Michael Caine in the film of that book — Detail — Raven's Progressive Matrices example — A…
Mathematics: Galois-Plane Models. Narrative: "The Dreaming Jewels."
Update of Nov. 30, 2014 — It turns out that the following construction appears on pages 16-17 of A Geometrical Picture Book , by Burkard Polster (Springer, 1998). "Experienced…
Update of Nov. 30, 2014 — For further information on the geometry in the remarks by Eberhart below, see pp. 16-17 of A Geometrical Picture Book , by Burkard Polster (Springer,…
For previous remarks on this topic, as it relates to symmetry axes of the cube, see previous posts tagged Interplay. The above posts discuss, among other things, the Galois projective…
Harold Rosenberg, "Art and Words," The New Yorker , March 29, 1969. From page 110: "An advanced painting of this century inevitably gives rise in the spectator to a conflict between…
“What happens when you mix the brilliant wit of Noel Coward with the intricate plotting of Agatha Christie? Set during a weekend in an English country manor in…
A paper from 1976 on symplectic torsors and finite geometry: A pdf is now available: FINITE GEOMETRIES IN THE THEORY OF THETA CHARACTERISTICS Autor(en): Rivano, Neantro Saavedra Objekttyp:…
Yesterday's post and recent Hollywood news suggest a meditation on a Progressive Matrix — Oct. 12-14, 2005: Click to enlarge. "My card." Structurally related images — A sample Raven's Progressive Matrices …