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According to the author: [2] This is a book about fundamental lessons we can learn from the study of the physical world. ... Here I've tried to convey the central messages of modern physics as simply as possible, while not compromising accuracy. ... I've selected ten broad principles as my fundamentals. Each forms the theme of one chapter.
Physics – natural science that involves the study of matter [1] and its motion through spacetime, along with related concepts such as energy and force. [2] More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves. [3] [4] [5]
Simple spacetime diagrams can help clarify the issues related to locality. [2] A way to describe the issues of locality suitable for discussion of quantum mechanics is illustrated in the diagram. A particle is created in one location, then split and measured in two other, spatially separated, locations. The two measurements are named for Alice ...
[2] [8] For example, wheels, levers, and pulleys are all used in the mechanism of a bicycle. [ 9 ] [ 10 ] The mechanical advantage of a compound machine is just the product of the mechanical advantages of the simple machines of which it is composed.
Free energy is subject to irreversible loss in the course of such work. [1] Since first-law energy is always conserved, it is evident that free energy is an expendable, second-law kind of energy. Several free energy functions may be formulated based on system criteria. Free energy functions are Legendre transforms of the internal energy.
The book was initially published on January 29, 2013 by Basic Books. [1] [2] [3] The Theoretical Minimum is a book and a Stanford University-based continuing-education lecture series, which became a popular YouTube-featured content.
The first edition of the book to bear the title Fundamentals of Physics, first published in 1970, was revised from the original text by Farrell Edwards and John J. Merrill. [2] (Editions for sale outside the USA have the title Principles of Physics.) Walker has been the revising author since 1990. [3]
With respect to particle physics, particles cannot be created or destroyed except in pairs, where one is ordinary and the other is an antiparticle. With respect to symmetries and invariance principles, three special conservation laws have been described, associated with inversion or reversal of space, time, and charge.