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Megaminx = Ih Point Group: (11): WEA[3^1]
2023-12-3 12:32
WEA indicates a C3 operation, with the connecting line of the center of Megaminx to WEA as the axis, rotating 120° counterclockwise. This is the definition in the textbook. In this video, WEA can rotate the triangle on the face W to the face E, while the other cubies are unchanged. At the ...
个人分类: 2024-魔方和自然|743 次阅读|没有评论
2013年 我的博文 和 2020年 Nature (NC) 所见略同
2023-11-26 13:11
对南京大学院士候选人闻海虎和王牧争论焦点的科学点评 点击下边,查看2013年博文: 科学网—对南京大学院士候选人闻海虎和王牧争论焦点的科学点评 - 李世春的博文 (sciencenet.cn) 以上是我于 2013年10月写的科学博文,当年的结论是: 我的观点: 单从这篇 NC 文章看,闻海 ...
个人分类: 背景和内涵|914 次阅读|没有评论
Megaminx = Ih Point Group: (10): WDE[3^1]
2023-11-20 21:56
WDE indicates a C3 operation, with the connecting line of the center of Megaminx to WDE as the axis, rotating 120° counterclockwise. This is the definition in the textbook. In this video, WDE can rotate the triangle on the face W to the face D, while the other cubies are unchanged. A ...
个人分类: 2024-魔方和自然|614 次阅读|没有评论
Megaminx = Ih Point Group: (9): WCD[3^1]
2023-11-10 14:16
WCD indicates a C3 operation, with the connecting line of the center of Megaminx to WCD as the axis, rotating 120° counterclockwise. This is the definition in the textbook. In this video, WCD can rotate the triangle on the face W to the face C, while the other cubies are unchanged. At th ...
个人分类: 2024-魔方和自然|656 次阅读|没有评论
Megaminx = Ih Point Group: (8): WBC[3^1]
2023-10-27 13:40
WBC indicates a C3 operation, with the connecting line of the center of Megaminx to WBC as the axis, rotating 120° counterclockwise. This is the definition in the textbook. In this video, WBC can rotate the triangle on the face W to the face B, while the other cubies are unchanged. At the ...
个人分类: 2024-魔方和自然|655 次阅读|没有评论
Megaminx = Ih Point Group: (7): WAB[3^1]
2023-10-21 21:45
WAB indicates a C3 operation, with the connecting line of the center of Megaminx to WAB as the axis, rotating 120° counterclockwise. This is the definition in the textbook. In this video, WAB can rotate the triangle on the face W to the face A, while the other cubies are unchanged. At the ...
个人分类: 2024-魔方和自然|719 次阅读|没有评论
Megaminx = Ih Point Group: (6): E[5^1]
2023-10-16 11:43
E indicates a C5 operation, with the normal line of the face E as the axis, rotating 72° counterclockwise. This is the definition in the textbook. In this video, E can rotate the triangle on the face W to the face D, while the other cubies are unchanged. At the same time, the three corner cu ...
个人分类: 2024-魔方和自然|739 次阅读|没有评论
月赏红叶 太阳当空照
热度 1 2023-10-9 10:25
个人分类: 2024-魔方和自然|1370 次阅读|2 个评论 热度 1
秋高 照片爽
热度 1 2023-10-7 12:07
先给 浮云 戴上大红花 这是秋天的麒麟草 最高的麒麟草 右上角,有一只熊蜂,花的左下角也有一只熊蜂(在麒麟草的后面) 这是野生的苹果树,像是葡萄一样,野生苹果也串在一起生长(树很高) 果子不大,但是真正的累累(这树就生长在路边,这路也来来回回走了好几年了,今年才看见苹果) 也就是说 ...
个人分类: 2024-魔方和自然|1357 次阅读|2 个评论 热度 1
Megaminx = Ih Point Group: (5): D[5^1]
2023-9-28 10:34
D indicates a C5 operation, with the normal line of the face D as the axis, rotating 72° counterclockwise. This is the definition in the textbook. In this video, D can rotate the triangle on the face W to the face C, while the other cubies are unchanged. At the same time, the three corner cu ...
个人分类: 2024-魔方和自然|628 次阅读|没有评论

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