jm + geometry   2

Cut / Fold Templates for paper mechanisms
Origami wizard Robby Kraft says "this site comes up in conversations 1/mo on average. if you need some suggestions:

#1 flexagon;
#4 auxetic (awesome, a little complex);
#6 bistable (so much untapped potential, i believe);
#14 flasher;
all the optical illusion ones"
geometry  origami  paper  templates  pdf  todo  kids  papercraft  making  crafting 
22 days ago by jm
Damn Cool Algorithms: Spatial indexing
quadtrees, Hilbert curves, and geohashing, as seen in Google's new Closure library. useful for multidimensional addressing in general
algorithms  mapping  gis  indexing  quadtree  datastructures  spatial  geometry  from delicious
november 2009 by jm

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