Timeline for Infinite knot composed of parallel helices
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 24, 2017 at 11:52 | vote | accept | Joseph O'Rourke | ||
| Jul 24, 2017 at 11:52 | history | edited | Joseph O'Rourke | CC BY-SA 3.0 |
Image links broken; now fixed.
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| Aug 17, 2012 at 11:48 | comment | added | Joseph O'Rourke | @Doug: Sharp eye! I should have illustrated the first of your descriptions, but instead illustrated the second description. Corrected now. Thanks! | |
| Aug 17, 2012 at 6:28 | comment | added | Douglas Zare | I'm still not sure which collection of helices are meant. One possibility is a "grid" of helices, indexed by pairs of integers $(x,y)$, so that the helix labelled $(x,y)$ is $\pi$ radians out of phase with its neighbors at $(x\pm 1, y)$ and $(x, y\pm1),$ and the distance between the axes of neighboring helices is slightly smaller than twice the radius. However, in the second picture it looks like the helices are in phase with the neighbors of the same color, but out of phase with the neighbors of different colors. | |
| Aug 17, 2012 at 5:28 | comment | added | Steven Gubkin | This is a chain link fence. | |
| Aug 17, 2012 at 4:19 | answer | added | Ian Agol | timeline score: 9 | |
| Aug 17, 2012 at 2:09 | answer | added | Ryan Budney | timeline score: 10 | |
| Aug 17, 2012 at 1:53 | comment | added | Qiaochu Yuan | Since these things are periodic can't you just look at a single period, which gives a braid? | |
| Aug 17, 2012 at 1:29 | comment | added | Qfwfq | I would call them links rather than knots | |
| Aug 17, 2012 at 0:51 | history | asked | Joseph O'Rourke | CC BY-SA 3.0 |