
费曼的失落讲座
Feynman's lost lecture
David L. Goodstein · 初版 1996 年
3位读者提及
4次提及
“1964年3月13日,Feynman 为加州理工学院一年级学生讲授了一堂课,题为‘行星绕太阳的运动’——即为什么行星的运行轨道是椭圆而非正圆。出于未知的原因,很可能纯粹是为了自娱自乐,他选择只用不超过高中平面几何难度的数学来进行论证。Isaac Newton 在近300年前的杰作 Principia 中就曾玩过极其相似的手法。Feynman 因无法理解 Newton 晦涩的证明,便在这堂加州理工的讲座中创造了自己独创的几何证明。”“Feynman 讲座的主题
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……来准备一堂大一水平的讲座。’但几天后他回来说:‘我搞不定。我没法把它简化到大一学生的水平。这就意味着我们并没有真正理解它。’”——戴维·L·古德斯坦,《费曼失去的讲座:行星围绕太阳的运动》,ISBN:978-0393039184。
…a freshman lecture on it.' But he came back a few days later to say, 'I couldn't do it. I couldn't reduce it to the freshman level. That means we don't really understand it.'" -- David L. Goodstein, Feynman's Lost Lecture: The Motion of Planets Around the Sun, ISBN:978-0393039184.
……费曼说:“我会专门准备一堂大一水平的讲座。”但几天后他回来说:“我搞不定。我没法把它简化到大一的水平。这就意味着我们其实还没真正搞懂它。”——戴维与朱迪思·古德斯坦,《费曼失去的讲座》
…Feynman said, “I’ll prepare a freshman lecture on it.” But he came back a few days later to say, “I couldn’t do it. I couldn’t reduce it to the freshman level. That means we don’t really understand it.” – Feynman’s Lost Lecture by David and Judith Goodstein
……举个例子 [1]),微积分的引入立刻能带来更深入的理解,并具备描述和解决更现实问题的能力(比如速度并不恒定的汽车)。[1] 戴维·古德斯坦所著《费曼失去的讲座:行星围绕太阳的运动》
…for example [1]), the use of calculus immediately opens up a better understanding and the ability to describe and solve more realistic problems (like cars that don't travel at a constant speed). [1] "Feynman's Lost Lecture: The Motion of Planets Around the Sun" by David Goodstein
……来准备一堂大一水平的讲座。’但几天后他回来说:‘我搞不定。我没法把它简化到大一学生的水平。这就意味着我们并没有真正理解它。’”——古德斯坦与古德斯坦,《费曼失去的讲座:行星围绕太阳的运动》(诺顿出版社,纽约,1996)
…freshman lecture on it.' But he came back a few days later to say, 'I couldn't do it. I couldn't reduce it to the freshman level. That means we don't really understand it.'" — Goodstein & Goodstein, Feynman's Lost Lecture: The Motion of Planets Around the Sun (Norton, New York, 1996)