Wednesday, May 27, 2020

Monday, May 18, 2020

Sudoku Frenzy

OK, for all ye Sudoku buffs out there, 2 incredible Sudoku puzzles passed along by Ben Orlin on Twitter (no, really, incredible puzzles):

Saturday, May 16, 2020

Siobhan Roberts Returns With More...

You probably think you've read enough about him by now, but yet another fantastic Siobhan Roberts' piece on John Conway in today's NY Times (ought not be missed):

ADDENDUM:  ...and a day later, Jim Propp adds his own personal memories/experience to the mix:

Tuesday, May 5, 2020

Peeping Through a Keyhole

"Peeping through my keyhole I see within the range of only about thirty percent of the light that comes from the sun; the rest is infrared and some little ultraviolet, perfectly apparent to many animals, but invisible to me. A nightmare network of ganglia, charged and firing without my knowledge, cuts and splices what I do see, editing it for my brain. Donald E. Carr points out that the sense impressions of one-celled animals are not edited for the brain. 'This is philosophically interesting in a rather mournful way, since it means that only the simplest animals perceive the universe as it is.'"

                                             -- Annie Dillard ("Pilgrim At Tinker Creek")