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张朝阳与David Tong谈物理学习:科学教育必须注入严谨的数学思维
Yang Guang Wang· 2025-08-19 01:34
Core Insights - The dialogue between Zhang Chaoyang and David Tong covers significant advancements in physics, emphasizing the importance of basic science communication in the internet age [2][3][10] Group 1: Classical Physics - The discussion begins with classical physics, highlighting Newton's contributions and the historical context of his work, including the near-miss of his recognition as the founder of classical mechanics [4] - The conversation touches on the transition in understanding fluid mechanics, particularly how the Navier-Stokes equations initially misled perceptions of flight before the significance of viscosity was recognized [5] Group 2: Electromagnetism and Quantum Mechanics - The evolution of electromagnetism is discussed, particularly the foundational role of Maxwell's equations and their stability over time [6] - The establishment of quantum mechanics is noted as a revolutionary moment in physics, with emphasis on Heisenberg's contributions and the significance of discrete energy levels [7] Group 3: Cosmology and Extraterrestrial Life - The dialogue explores the mysteries of the universe, including black holes and the implications of gravitational wave discoveries, which challenge existing theories about black hole formation [8][9] - The probability of extraterrestrial life is debated, with a focus on the vastness of the universe and the challenges of life formation [9] Group 4: Science Communication and Education - The importance of rigorous mathematical thinking in science education is emphasized, with a call for effective science communication that does not shy away from complex formulas [10] - The potential of social media for science dissemination is highlighted, suggesting that physicists could leverage personal platforms for public education and engagement [11]
科学家在类太阳恒星宜居带发现“超级地球”
Xin Hua She· 2025-06-03 14:11
Core Viewpoint - A significant discovery has been made by a Sino-German research team led by the Yunnan Observatory of the Chinese Academy of Sciences, identifying a "super-Earth" that may harbor Earth-like life around a sun-like star, marking the first use of transit timing variation (TTV) inversion technology for such a finding in the habitable zone of a sun-like star [1][2]. Group 1 - The newly discovered planet has a mass ten times that of Earth and is located approximately 2,472 light-years away from the solar system, orbiting the star Kepler-725, which is significantly younger than the Sun at only 1.6 billion years old [1]. - The research team utilized TTV inversion technology to infer the existence of this "super-Earth" by observing the slight deviations in the orbital period of another transiting planet in the Kepler-725 system [2]. - Currently, 5,912 exoplanets have been discovered, but very few are suitable for Earth-like life, as traditional methods like the transit method and radial velocity method struggle to detect smaller, distant planets like Earth [1]. Group 2 - Further investigation is required to determine if the identified habitable zone planets truly possess conditions suitable for Earth-like life [3]. - The research team expresses optimism that humanity may soon find a "blue planet" similar to Earth, potentially answering the age-old question of whether Earth is the only life-bearing planet in the vast universe [3].