在线阅读本书 At the beginning of the 21 st century, physics is being driven to very unfamiliar territory--the domain of the incredibly small and the incredibly heavy. The new world is a world in which both quantum mechanics and gravity are equally important. But mysteries remain. One of the biggest involved black holes. Famed physicist Stephen Hawking claimed that anything sucked i...(展开全部)

李奥纳特·苏士侃（Leonard Susskind）是美国理论物理学家，美国斯坦福大学教授，弦论的创始人之一，他和其所领导的研究小组并提出宇宙的发展需要一外在的力量（agent）来参与而非自身发展的看法。 弦理论的雏形是在1968年由Gabriele Veneziano 发现。他原本是要找能描述原子核内的强作用力的数学公式，然后在一本老旧的数学书里找到了有200年之久的欧拉公式（Euler's Function），这公式能够成功的描述他所要求解的强作用力。然而进一步将这公式理解为一小段类似橡皮筋那样可扭曲抖动的有弹性的“线段”却是在不久后由Leonard Susskind(李奥纳特·苏士侃)所发现，这在日后则发展出“弦理论”。 Modern Physics: The Theoretical Minimum: Classical Mechanics (...(展开全部)

What happens when something is sucked into a black hole? Does it disappear? Three decades ago, a young physicist named Stephen Hawking claimed it did-and in doing so put at risk everything we know about physics and the fundamental laws of the universe. Most scientists didn't recognize the import of Hawking's claims, but Leonard Susskind and Gerard t'Hooft realized the threat, a...(展开全部)

在线阅读本书 At the beginning of the 21 st century, physics is being driven to very unfamiliar territory--the domain of the incredibly small and the incredibly heavy. The new world is a world in which both quantum mechanics and gravity are equally important. But mysteries remain. One of the biggest involved black holes. Famed physicist Stephen Hawking claimed that anything sucked i...(展开全部)

What happens when something is sucked into a black hole? Does it disappear? Three decades ago, a young physicist named Stephen Hawking claimed it did-and in doing so put at risk everything we know about physics and the fundamental laws of the universe. Most scientists didn't recognize the import of Hawking's claims, but Leonard Susskind and Gerard t'Hooft realized the threat, a...(展开全部)

李奥纳特·苏士侃（Leonard Susskind）是美国理论物理学家，美国斯坦福大学教授，弦论的创始人之一，他和其所领导的研究小组并提出宇宙的发展需要一外在的力量（agent）来参与而非自身发展的看法。 弦理论的雏形是在1968年由Gabriele Veneziano 发现。他原本是要找能描述原子核内的强作用力的数学公式，然后在一本老旧的数学书里找到了有200年之久的欧拉公式（Euler's Function），这公式能够成功的描述他所要求解的强作用力。然而进一步将这公式理解为一小段类似橡皮筋那样可扭曲抖动的有弹性的“线段”却是在不久后由Leonard Susskind(李奥纳特·苏士侃)所发现，这在日后则发展出“弦理论”。 Modern Physics: The Theoretical Minimum: Classical Mechanics (...(展开全部)

Food, and in particular the lack of it, was central to the experience of the Second World War. In this richly detailed and engaging history, Lizzie Collingham establishes how control of food and its production is crucial to total war. How were the imperial ambitions of Germany and Japan - ambitions which sowed the seeds of war - informed by a desire for self-sufficiency in food...(展开全部)

Food, and in particular the lack of it, was central to the experience of the Second World War. In this richly detailed and engaging history, Lizzie Collingham establishes how control of food and its production is crucial to total war. How were the imperial ambitions of Germany and Japan - ambitions which sowed the seeds of war - informed by a desire for self-sufficiency in food...(展开全部)