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分享 Icosahedral symmetry: multiple twinning of 20 rhombohedral
李世春 2018-7-29 09:42
Icosahedral symmetry: multiple twinning of 20 rhombohedral cells https://www.youtube.com/channel/UCeNplibjHdednjiqUY4IcEg https://www.youtube.com/channel/UCeNplibjHdednjiqUY4IcEg https://www.youtube.com/watch?v=mg1-18jqcbg 1 Shechtman, D., I. Blech, D. Gratias, ...
个人分类: Play Cube and Learn Math|939 次阅读|没有评论
分享 Rubik’s Cube Keeps People Fascinated
李世春 2018-7-27 07:08
Rubik’s Cube Keeps People Fascinated “Playing Rubik’s Cube is the best way to intellectually stimulate the brain”, says retired professor from China – an expert at Rubik’s Cube – whose inspiration came from his hometown village https://www.myuna.ca/wp-content/uploads ...
个人分类: Play Cube and Learn Math|1602 次阅读|没有评论
分享 退休 2 年:拿了 2 个基金,开出 1 门新课
热度 10 李世春 2018-6-17 11:12
https://www.youtube.com/channel/UCeNplibjHdednjiqUY4IcEg 退休2年:拿了2个基金,开出1门 新 课 两个基金项目的题目是: The Rubik’s Cube Story (去年的基金题目) The Rubik’s Cube Story (今年的基金题目) (今年加了个限定条件: 4×4×4 Cube and 5×5×5 Cube ...
个人分类: Play Cube and Learn Math|12872 次阅读|21 个评论 热度 10
分享 Rubik’s Cube
热度 2 李世春 2013-5-13 09:03
https://www.youtube.com/channel/UCeNplibjHdednjiqUY4IcEg Rubik’s Cube Rubik’s Cube and Its Mathematical Model Searched for: rubik's cube Found: Library (106) | Archives (9) | Ancestors (1) | Images (0) Library 1 - 5 of106 (14.816 ...
个人分类: Play Cube and Learn Math|3451 次阅读|4 个评论 热度 2
分享 DaMaoHuDong
热度 1 李世春 2008-4-8 20:55
My YouTube: https://www.youtube.com/channel/UCeNplibjHdednjiqUY4IcEg DaMaoHuDong ( Preface for Rubik’s Cube and Its Application in Science ) The DaMaoHuDong ( 大毛忽洞 ) is the name of my hometown village, a place where there are two salient characters: poor and bl ...
个人分类: Play Cube and Learn Math|10488 次阅读|2 个评论 热度 1

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