10 Oct
2003
10 Oct
'03
8:28 a.m.
On Friday, October 10, 2003, at 09:00 AM, John Conway wrote:
By the way, in the Poincare dodecahedral space, one comes back rotated by pi/5, not 2pi/5 (and this only happens in 12 particular directions).
Oops, right, I knew that... Oh! -- but which direction you get rotated in invariant! That is, the Poincare Dodecahedron is not its own mirror image. So such a universe would have a large-scale handedness. Wouldn't that be neat... --Michael Kleber kleber@brandeis.edu