libertine
发表于 2025-3-28 17:54:43
Gerhard Schnell,Konrad Hoyerpentagon tiling of the euclidean plane is impossible (fig. 1-a). It is however possible to tile a positively curved surface, a sphere, with pentagons leading to a pentagonal dodecahedron. Let us try now to densely pack spheres in 3D (this is an approximation to amorphous metals structures). Four sph
胰岛素
发表于 2025-3-28 21:41:28
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entail
发表于 2025-3-29 00:34:52
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