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Turtle

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Turtle last won the day on September 15

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About Turtle

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  • Birthday 03/27/2014

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  1. You're welcome. :) My first impression when you posted was an inflated Möbius strip. Thanks for an interesting diversion in any regard.
  2. There exist several forms of Klein bottles as explained at link. Whether the torus in OP IS a Klein bottle or not, it looks like one variation as below from the link.
  3. http://virtualmathmuseum.org/Surface/klein_bottle/klein_bottle.html
  4. Fun! So...if there's E8 in this, it's beyond my ken. Looking at these things and canoodling them is one thing, but building their wireframes and handling them, I have found, is quite another. Wood dowels & tubing vertices. A cube so constructed will fold under its own weight without bending edges or breaking vertices, whereas an icosahedron will not fold. (No Deltahedrons can fold.) I suspect our honeycomb folds, but without a model in hand I don't know it. If one builds this hexaprismatic truncated octahedrille with rigid vertices & faces as pictured, it will partition space into
  5. Sponge Bob=pineapple=Fibonacci for those who don't know. Lol Acknowledge various acceptable names. A hexaprismatic truncated octahedrille by any other name will fly as well. So where did you get the image you posted? Who drew it? What software did they use? Is it public domain? What's your endgame? Just a mental exercise?I found graphing/drafting different views so challenging for all but the simplest polyhedra, I instead built models and photographed them. Question: If a hexaprismatic truncated octahedrille space frame has flexible vertices, will it fold?
  6. That more describes a unit cell while missing the fact that what you picture is a honeycomb.Why do you ask and what do you mean by "graphing" the structure?
  7. Try this: "nonuniform honeycomb with truncated octahedra and hexagonal prisms (as ditrigonal trapezoprisms). " https://en.m.wikipedia.org/wiki/Bitruncated_cubic_honeycomb
  8. All of them. It's Jesuses all the way down.
  9. The effect is due to convection currents in the cylinder. Bubbles rise in a column which becomes focussed in the center by pressure equalization, which draws fluid to move up from the center of the cylinder, then move radially at surface to edge of container, then down sides and along bottom back to center & up again. The small bubbles are trapped at the edge because their diameter/volume is greater than the downward moving layer/force along the sides of cylinder. See "Brazil nut effect" for an analog with granules.
  10. I'm not dead and that's well enough for the day. :-D I see you are the same and I'm glad of it. :Wave: Yup, a green mile forum posting a'right. Live long & prosper you salty old dog! May you reincarnate as a new Earth species. :Cheers:
  11. Saw a woman in half, nail a guy to wood. Ain't no thang.
  12. Jesus was a Savant, much like Mozart. Schooled in mystic Judaism, he learned the stage magic of Moses. He struck out on his own and lived by the generosity & gullibility of others. Think David Blaine on the con. Philosophy guides the setup.
  13. Your copyright may be a stronger protection than a patent. Consult an attorney/barrister/lawyer/etcetera. Best of luck.
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