tag:blogger.com,1999:blog-9080221888249170436.post761463412860915093..comments2023-07-29T15:19:33.510+08:00Comments on THE BEADED MOLECULES 串珠分子模型的美妙世界: Torus knot (2,9) by Kazunori Horibethebeaedmolecules.blogspot.comhttp://www.blogger.com/profile/02008781723798897624noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-9080221888249170436.post-41405984460502899622015-04-22T15:01:14.992+08:002015-04-22T15:01:14.992+08:00There are three ways to link tetrahedra:
1. Face-...There are three ways to link tetrahedra:<br /><br />1. Face-sharing. The result is a straight tetrahelix, or the Boerdijk–Coxeter helix; <br /><br />2. Edge-sharing. Even number of tetrahedra linked in this way to form a loop, one get the Kaleidocycle. Of course, with many tetrahedra linked in this way, one can create almost any knot, including torus knot. I made a trefoil knot linked this way thebeaedmolecules.blogspot.comhttps://www.blogger.com/profile/02008781723798897624noreply@blogger.comtag:blogger.com,1999:blog-9080221888249170436.post-53678711036690986502015-04-22T14:02:25.518+08:002015-04-22T14:02:25.518+08:00I wonder if this could be achieved with tetrahedro...I wonder if this could be achieved with tetrahedron-chain. Marvelous design!Onyehttps://www.blogger.com/profile/12839247909209570568noreply@blogger.comtag:blogger.com,1999:blog-9080221888249170436.post-84126751902208764662015-04-22T14:01:48.688+08:002015-04-22T14:01:48.688+08:00I wonder if this could be achieved with tetrahedro...I wonder if this could be achieved with tetrahedron-chain. Marvelous design!Onyehttps://www.blogger.com/profile/12839247909209570568noreply@blogger.comtag:blogger.com,1999:blog-9080221888249170436.post-14867142197184537522015-04-11T20:08:06.062+08:002015-04-11T20:08:06.062+08:00This one is hard. You need to be careful about the...This one is hard. You need to be careful about the spatial arrangement of pentagons and heptagons. <br /><br />If you are already familiar with tori and helices, you might want to give a try. If not, you should become with these two families of structures first!<br />thebeaedmolecules.blogspot.comhttps://www.blogger.com/profile/02008781723798897624noreply@blogger.comtag:blogger.com,1999:blog-9080221888249170436.post-801087938416334002015-04-10T20:05:21.466+08:002015-04-10T20:05:21.466+08:00I would like to know how to create one of my own.....I would like to know how to create one of my own....Judy Turnerhttps://www.blogger.com/profile/17331956135569916840noreply@blogger.com