Feynman lectures on physics - vol 1 If at some point you found Physics wonderful, and then lost it when everything became calculations, I wholeheartedly recommend this book, and the other volumes once you are done with it. Feynman has…
…without initial conditions (of course to use this fact, you would need to understand that F=ma is a differential equation, not a function) (Maybe it's better if you read some good introductory text, such as Feynman Lectures on Physics Vol 1, Chapter 9). If still not clear for you: the initial state in a two body problem is determined by the initial position and velocity. They are the initial conditions of your "function" F=ma, which is…
…of atoms—little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another.” ― Richard Feynman, The Feynman Lectures on Physics Vol 1 This should be generalized and augmented to the idea of analysis and synthesis in general, what we could call "general alchemy". That is physical and symbolic isolation & scientific controls help to…
《费曼物理学讲义》第一卷。如果你曾觉得物理学妙趣横生,后来却因为全变成枯燥计算而失去了兴趣,那我全心推荐这本书,看完后也可以接着看其他几卷。费曼有着……
Feynman lectures on physics - vol 1 If at some point you found Physics wonderful, and then lost it when everything became calculations, I wholeheartedly recommend this book, and the other volumes once you are done with it. Feynman has…
……没有初始条件(当然,要想运用这一事实,你得先搞明白 F=ma 是一个微分方程,而不是普通函数)(建议你最好去读读优秀的入门教材,比如《费曼物理学讲义》第一卷第九章)。要是你还不明白:二体问题中的初始状态是由初始位置和初始速度决定的。它们是你那个“函数” F=ma 的初始条件,而它……
…without initial conditions (of course to use this fact, you would need to understand that F=ma is a differential equation, not a function) (Maybe it's better if you read some good introductory text, such as Feynman Lectures on Physics Vol 1, Chapter 9). If still not clear for you: the initial state in a two body problem is determined by the initial position and velocity. They are the initial conditions of your "function" F=ma, which is…
……由原子组成——即永不停歇运动的微小粒子,在彼此保持一定距离时相互吸引,一旦被挤压在一起就会相互排斥。”——理查德·费曼,《费曼物理学讲义》第一卷。这应该被泛化并推广到更广泛的分析与综合思想中,也就是我们所谓的“广义炼金术”。即物理和符号上的隔离与科学对照有助于……
…of atoms—little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another.” ― Richard Feynman, The Feynman Lectures on Physics Vol 1 This should be generalized and augmented to the idea of analysis and synthesis in general, what we could call "general alchemy". That is physical and symbolic isolation & scientific controls help to…