费恩曼物理学讲义的笔记(16)

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  • Cynosure

    Cynosure (请叫我(云)撸猫小能手!)

    Uuuuuuuuuuuuuuuuuuuu   (1回应)

    2018-07-06 01:52   1人喜欢

  • alfred

    alfred (a kingdom for a horse)

    If, in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generation of creatures, what statement would contain the most information in the fewest words? I believe it is the atomic hypothesis (or the atomic fact, or whatever you wish to call it) that all things are made of atoms—little particles that move around in perpetual motion, at...

    2017-10-12 00:40

  • 摇光

    摇光 (如切如磋,如琢如磨)

    “The true logic of this world is in the calculus of probabilities.” --James Clerk Mawell 第6章第7页: There is an implication in such an expression that there is a "true" or "correct" probability which could be computed if we know enough, and that the observation may be in "error" due to a fluctuation. There is, however, no way to make such thinking logically cons...

    2016-05-14 18:34

  • 老爷

    老爷

    And the usual way of dealing with quantum mechanics makes that subject almost unavailable for the great majority of students because they have to take so long to learn it. Yet, in its real applications---especially in its more complex applications, such as in electrical engineering and chemistry---the full machinery of the differential equation approach is not actually used. So I tried to describe...

    2013-05-06 10:53

  • 月半国

    月半国

    昨天由同学推荐去图书馆借了这本书来看。还是很喜欢数学,同学说学数学该看看物理,因为很多数学理论都是借物理的启发而生出的,我觉得很有意思,就想想看看。果然还是很好的一本书。看了两章,对很多物理概念又回顾了一遍,而且Feynman写得非常好,解释的很清晰。我觉得一个scientist的实力就要看他解释东西的清晰程度。感觉自己又找回一些初中学物理的热情,那时很喜欢爱因斯坦,可能一直都很想了解物理吧。看豆瓣上说本书也有很...

    2013-04-21 13:31

  • 如是

    如是 (咔咔咔咔咔)

    第十章的主要内容是动量守恒。先介绍了newton's third law,that is to say,action equals reaction.This principa is a basic law for futther deduction.Then,more important part is the conservation of momentum.This part is introduced quite delibertly.From the basic knowledge,little by little,to more advanced or more complicated acassions.介绍完动量守恒时候是从两个角度证明动量守恒定律。一方面从牛顿定律出发..

    2013-03-04 22:49

  • 蛇仙大人

    蛇仙大人 (千年等一回~~等一回)

    the principle of inertia: if an object is left alone, is not disturbed, it continues to move with a constant velocity in a straight line if it was originally moving, or it continues to stand still if it was just standing still. the principle of inertia: if an object is left alone, is not disturbed, it continues to move with a constant velocity in a straight line if it was originally moving, or...

    2012-12-25 19:19

  • 蛇仙大人

    蛇仙大人 (千年等一回~~等一回)

    Kepler's three law are: 1.Each planet moves around the sun in an ellipse, with the sun at one focus; 2.The radius vector from the sun to the planet sweeps out equal areas in equal intervals of time; 3.The squares of the periods of any two planets are proportional to the cubes of the semimajor axes of their respective orbits:T~a3/2

    2012-12-21 17:02

  • 如是

    如是 (咔咔咔咔咔)

    chapter7的主要内容介绍了gravity的来龙去脉前世今生。虽然在高中物理对牛顿的万有引力定律及开普勒的三定律耳熟能详,但是对他们的了解却从未深入。牛顿的万有引力定律与开普勒三定律有着千丝万缕的联系,同时牛顿的万有引力定律也很好的兼容了开普勒的定律,以前认为牛顿的定律只是一个公式,但是看完之后却产生了许多新的理解,物理在无外力作用下只会做匀速直线运动,直到有外力使之改变,向心力也是一种力,这种力的作用使得..

    2012-03-25 23:07

  • 如是

    如是 (咔咔咔咔咔)

    前天读的这一章,今天终于可以写一写笔记,这一章的内容是propbility,前两节还好,但在看有关期望和一些数理统计的问题时遇到问题停滞了,最后一章是薛定谔不确定关系还比较好懂。先写这些吧。

    2012-03-16 13:33

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费恩曼物理学讲义

>费恩曼物理学讲义