珐琅
发表于 2025-3-23 10:04:28
The Story of M,lution was fired by Witten on March 14, 1995, when he spoke at the annual gathering of the string community. Witten, building on recent work by several physicists, instigated a change in how we view strings that was perhaps even more important than what Green and Schwarz had proposed a decade earlier.
战胜
发表于 2025-3-23 14:19:03
Introduction,This book is about some really wild ideas and why a group of sober, professional, extremely intelligent people think there is a chance of these ideas being true.
的染料
发表于 2025-3-23 21:06:59
The Standard Model,Our present understanding of the microworld is defined in terms of quantum fields and the interactions between them. The best description we have of the fields and their interactions is given by the Standard Model of particle physics.
不规则
发表于 2025-3-24 01:11:50
Symmetry, appear everywhere in our man-made, artificial world. An everyday example of a polyhedron is a breakfast cereal box: each face of the box is a rectangle (plane polygons with four edges), and the rectangles are joined together at the edges of the box so that it is closed. It is not difficult to see t
dura-mater
发表于 2025-3-24 05:36:05
Twin Pillars of Physics,erent topics: relativity and quantum mechanics. These two theories are undoubtedly the twin pillars of modern physics, the foundations upon which our contemporary understanding of the Universe is built. And they feel modern, somehow, in that they deal with concepts that are quite unfamiliar to us in
慷慨援助
发表于 2025-3-24 09:29:48
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打火石
发表于 2025-3-24 12:24:08
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Virtues
发表于 2025-3-24 18:45:29
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泥瓦匠
发表于 2025-3-24 20:21:00
Superstrings,tum field theory and local gauge symmetry, that successfully explains all the particle physics experiments that have ever been performed. But the Standard Model is incomplete: it contains two different sectors that seem to demand unification, and it completely neglects gravity. The first problem is
威胁你
发表于 2025-3-25 02:47:39
The Story of M,lution was fired by Witten on March 14, 1995, when he spoke at the annual gathering of the string community. Witten, building on recent work by several physicists, instigated a change in how we view strings that was perhaps even more important than what Green and Schwarz had proposed a decade earlie