图 书 馆
质量的起源和重力衰弱The Origin of Mass and the Feebleness of Gravity |
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| 课程网址: | http://videolectures.net/mitworld_wilczek_toom/ |
| 主讲教师: | Frank Wilczek |
| 开课单位: | 麻省理工学院 |
| 开课时间: | 2010-06-08 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | A stunning roster of awards all identify Frank Wilczek as one of the most profound and influential theoretical physicists alive today. This lecture proves the point, as Wilczek goes after one of the deepest questions in science: What is the origin of mass? Rewriting Einstein’s famous equation as m=E / c2 dramatizes that energy is the source of mass; energetic but massless quarks and gluons, Wilczek argues, give rise to mass by finding quasi-stable equilibrium states, better know as protons and neutrons. Having reinterpreted the theory of quantum chromodynamics in a brisk half hour, Wilczek plunges into another brain-straining question: What makes gravity so feeble? Here the more tentative answer derives from the unimaginably tiny dimensions of the Planck scale. Fundamental forces make sense in that realm; gravity is weak only relative to the enormously larger scales we live on. Wilczek looks forward to testing some of these speculations via experimental results as early as 2009. |
| 关 键 词: | 质量; 能量; 平衡态; 量子动力学理论; 重力 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-06-01：吴雨秋(课程编辑志愿者) |
| 阅读次数: | 45 |