Tag: Spinning in Infinity
(Continued from Jan. 13 and Feb. 19.) The founder of Graylock Press died at 96 in Bethesda on Feb. 19: For some background on the original Bethesda, see…
Yesterday's post Permanence dealt with the cube as a symmetric model of the finite projective plane PG(2,3), which has 13 points and 13 lines. The points and lines of the…
A note for day 13 of 2013 How the cube's 13 symmetry planes* are related to the finite projective plane of order 3, with 13 points and 13 lines—…