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Brain, are you thinking what I'm thinking?
The following thoughts occur to me as I plan to update this LJ. As I want the other entries to be coherent, I shall dump them here.
-Ariel, Cal and Jeff don't have livejournal. This is a pity, particularly as Ariel knows origami stuff and probably remembers more of the origami talk than I do. Cal and Jeff are summer math incarnate. Shmack and Katy's journal almost compensate but not quite.
-Lawns exist to look nice, lawn-mowers exist to make lawns look nice. Trees look nicer. Hills like trees much more than lawn-mowers like hills. (Best analogy ever)
-Computers with on-off switches should make use of them. Tilting the entire tower an inch or so is not an intuitive on-off switch.
-Ariel, Cal and Jeff don't have livejournal. This is a pity, particularly as Ariel knows origami stuff and probably remembers more of the origami talk than I do. Cal and Jeff are summer math incarnate. Shmack and Katy's journal almost compensate but not quite.
-Lawns exist to look nice, lawn-mowers exist to make lawns look nice. Trees look nicer. Hills like trees much more than lawn-mowers like hills. (Best analogy ever)
-Computers with on-off switches should make use of them. Tilting the entire tower an inch or so is not an intuitive on-off switch.
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It's abarton@hmc.edu. (Or abarton@odin.ac.hmc.edu)
I remember there was a nifty proof that, for any crease node in a flat model, the absolute value of the number of valley folds minus the number of mountain folds coming out of the node was 2. (The proof involves cutting (gasp) off the corner, then looking at the sum of the interior angles of the polygon formed by the cut.) There's also the pretty thing where you make a flat model, unfold it, two-color the resulting "map" ("countries" are separated by the creases), and refold it.
And I have a nifty PHiZZ unit torus. If you want, I can ask east-summer-chat if anyone has a digital camera, so I could send you a picture...
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The only source of math origami info I know of is Tom Hull's website (it's http://web.merrimack.edu/~thull/OrigamiMath.html, if you don't know it.) (Tom Hull is the guy who did the talk.)
Oh, one more thing: in the two-coloring I told you about, only count creases that are folded in the end result. A crease to find your place doesn't count..