reaching 发表于 2025-3-23 11:46:14

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人充满活力 发表于 2025-3-23 15:16:10

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显赫的人 发表于 2025-3-23 20:09:48

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轻浮女 发表于 2025-3-24 00:07:16

Frederick H. Silver,David L. Christiansentwo aspects of strange modern mathematics with a clear geometrical interpretation and the subsequent lecture looks at aspects of our understanding of the physical universe as modified by Einstein’s theories of relativity.

断断续续 发表于 2025-3-24 03:59:32

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hauteur 发表于 2025-3-24 08:32:11

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sundowning 发表于 2025-3-24 11:03:07

Biologically Derived Collagen MembranesTHE PREVIOUS LECTURE described the regular figures in two and three dimensions. We now consider the regular figures in four dimensions and how we can get a glimpse of them by analogy with how a person in Flatland might get some appreciation of figures in three dimensions.

transplantation 发表于 2025-3-24 17:34:26

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现实 发表于 2025-3-24 21:28:13

The Fourth Dimension,THE PREVIOUS LECTURE described the regular figures in two and three dimensions. We now consider the regular figures in four dimensions and how we can get a glimpse of them by analogy with how a person in Flatland might get some appreciation of figures in three dimensions.

MILK 发表于 2025-3-24 23:28:16

Harmony of the Spheres,IN THE LECTURE on Bubbles we saw how the centres of bubbles, the centres of curvature of dividing films, and points on tangents formed various harmonic ranges. In this lecture we will start by looking at some other pretty properties of circles and spheres. But first a brief explanation of the title of this lecture.
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查看完整版本: Titlebook: Gems of Geometry; John Barnes Book 2012Latest edition Springer-Verlag Berlin Heidelberg 2012 geometry.geometry and crystals.relativity.top