AND greased the folder so if I can’t wrestle that thing (or can’t get up early enough to do it) I can take the folder to do the Bike 101 co-teach after my ride instead of wimping out on the assorted bike moves
word eventually reached us at MIT. I don’t remember who found the blinker that stabilizes the puffer, or if it was Corderman or an MIT person. The unique smallest polyomino which evolves into the switch engine has 9 cells, so this is most probably (but not certainly) the ‘Corderman-...