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Author: Jennifer Coopersmith Publisher: Oxford University Press ISBN: 0191060720 Category : Science Languages : en Pages : 272
Book Description
This is a rare book on a rare topic: it is about 'action' and the Principle of Least Action. A surprisingly well-kept secret, these ideas are at the heart of physical science and engineering. Physics is well known as being concerned with grand conservatory principles (e.g. the conservation of energy) but equally important is the optimization principle (such as getting somewhere in the shortest time or with the least resistance). The book explains: why an optimization principle underlies physics, what action is, what `the Hamiltonian' is, and how new insights into energy, space, and time arise. It assumes some background in the physical sciences, at the level of undergraduate science, but it is not a textbook. The requisite derivations and worked examples are given but may be skim-read if desired. The author draws from Cornelius Lanczos's book "The Variational Principles of Mechanics" (1949 and 1970). Lanczos was a brilliant mathematician and educator, but his book was for a postgraduate audience. The present book is no mere copy with the difficult bits left out - it is original, and a popularization. It aims to explain ideas rather than achieve technical competence, and to show how Least Action leads into the whole of physics.
Author: Jennifer Coopersmith Publisher: Oxford University Press ISBN: 0191060720 Category : Science Languages : en Pages : 272
Book Description
This is a rare book on a rare topic: it is about 'action' and the Principle of Least Action. A surprisingly well-kept secret, these ideas are at the heart of physical science and engineering. Physics is well known as being concerned with grand conservatory principles (e.g. the conservation of energy) but equally important is the optimization principle (such as getting somewhere in the shortest time or with the least resistance). The book explains: why an optimization principle underlies physics, what action is, what `the Hamiltonian' is, and how new insights into energy, space, and time arise. It assumes some background in the physical sciences, at the level of undergraduate science, but it is not a textbook. The requisite derivations and worked examples are given but may be skim-read if desired. The author draws from Cornelius Lanczos's book "The Variational Principles of Mechanics" (1949 and 1970). Lanczos was a brilliant mathematician and educator, but his book was for a postgraduate audience. The present book is no mere copy with the difficult bits left out - it is original, and a popularization. It aims to explain ideas rather than achieve technical competence, and to show how Least Action leads into the whole of physics.
Author: Jennifer Coopersmith Publisher: Oxford University Press ISBN: 0198743041 Category : Electronic book Languages : en Pages : 280
Book Description
This is a rare book on a rare topic: it is about 'action' and the Principle of Least Action. A surprisingly well-kept secret, these ideas are at the heart of physical science and engineering. Physics is well known as being concerned with grand conservatory principles (e.g. the conservation of energy) but equally important is the optimization principle (such as getting somewhere in the shortest time or with the least resistance). The book explains: why an optimization principle underlies physics, what action is, what `the Hamiltonian' is, and how new insights into energy, space, and time arise. It assumes some background in the physical sciences, at the level of undergraduate science, but it is not a textbook. The requisite derivations and worked examples are given but may be skim-read if desired. The author draws from Cornelius Lanczos's book "The Variational Principles of Mechanics" (1949 and 1970). Lanczos was a brilliant mathematician and educator, but his book was for a postgraduate audience. The present book is no mere copy with the difficult bits left out - it is original, and a popularization. It aims to explain ideas rather than achieve technical competence, and to show how Least Action leads into the whole of physics.
Author: Jennifer Coopersmith Publisher: OUP Oxford ISBN: 0191057517 Category : Science Languages : en Pages : 432
Book Description
Energy is at the heart of physics and of huge importance to society and yet no book exists specifically to explain it, and in simple terms. In tracking the history of energy, this book is filled with the thrill of the chase, the mystery of smoke and mirrors, and presents a fascinating human-interest story. Moreover, following the history provides a crucial aid to understanding: this book explains the intellectual revolutions required to comprehend energy, revolutions as profound as those stemming from Relativity and Quantum Theory. Texts by Descartes, Leibniz, Bernoulli, d'Alembert, Lagrange, Hamilton, Boltzmann, Clausius, Carnot and others are made accessible, and the engines of Watt and Joule are explained. Many fascinating questions are covered, including: - Why just kinetic and potential energies - is one more fundamental than the other? - What are heat, temperature and action? - What is the Hamiltonian? - What have engines to do with physics? - Why did the steam-engine evolve only in England? - Why S=klogW works and why temperature is IT. Using only a minimum of mathematics, this book explains the emergence of the modern concept of energy, in all its forms: Hamilton's mechanics and how it shaped twentieth-century physics, and the meaning of kinetic energy, potential energy, temperature, action, and entropy. It is as much an explanation of fundamental physics as a history of the fascinating discoveries that lie behind our knowledge today.
Author: Lawrence Maxwell Krauss Publisher: Simon and Schuster ISBN: 145162445X Category : Science Languages : en Pages : 226
Book Description
This is a provocative account of the astounding new answers to the most basic philosophical question: Where did the universe come from and how will it end?
Author: Steven Weinberg Publisher: Harvard University Press ISBN: 0674071999 Category : Science Languages : en Pages : 276
Book Description
Just as Henry David Thoreau “traveled a great deal in Concord,” Nobel Prize–winning physicist Steven Weinberg sees much of the world from the window of his study overlooking Lake Austin. In Lake Views Weinberg, considered by many to be the preeminent theoretical physicist alive today, continues the wide-ranging reflections that have also earned him a reputation as, in the words of New York Times reporter James Glanz, “a powerful writer of prose that can illuminate—and sting.” This collection presents Weinberg’s views on topics ranging from problems of cosmology to assorted world issues—military, political, and religious. Even as he moves beyond the bounds of science, each essay reflects his experience as a theoretical physicist. And as in the celebrated Facing Up, the essays express a viewpoint that is rationalist, reductionist, realist, and secular. A new introduction precedes each essay, explaining how it came to be written and bringing it up to date where necessary. As an essayist, Weinberg insists on seeing things as they are, without despair and with good humor. Sure to provoke his readers—postmodern cultural critics, enthusiasts for manned space flight or missile defense, economic conservatives, sociologists of science, anti-Zionists, and religious zealots—this book nonetheless offers the pleasure of a sustained encounter with one of the most interesting scientific minds of our time.
Author: Devon Price Publisher: Simon and Schuster ISBN: 1982140119 Category : Business & Economics Languages : en Pages : 256
Book Description
A social psychologist uncovers the psychological basis of the "laziness lie," which originated with the Puritans and has ultimately created blurred boundaries between work and life with modern technologies and offers advice for not succumbing to societal pressure to "do more."
Author: Jakob Schwichtenberg Publisher: No-Nonsense Books ISBN: Category : Science Languages : en Pages : 251
Book Description
This is a handbook containing all the advice and recommendations about learning physics I wished someone had told me when I was younger. It is neither a career guide nor a comprehensive textbook. What’s inside? - Understand why self-learning is an effective strategy. Learn why most university students never develop a deep understanding and what alternatives are possible. - Grasp the internal structure of physics. Learn how the fundamental theories of physics are connected and why physics works at all. - Develop an understanding of the landscape. Read bird's eye overviews that give a first taste of what the various theories of physics are all about. - Everything you need to get started. Read detailed reading and learning recommendations that allow you to carve out a personal learning path.
Author: Thaddeus Golas Publisher: Gibbs Smith Publishers ISBN: 9780879056988 Category : Religion Languages : en Pages : 112
Book Description
Thaddeus Golas is a lazy man. Laziness keeps him from believing that enlightenment demands effort, discipline, strict diet, non-smoking and other evidences of virtue. He found a way to enlighten himself - and you - with two sentences. The first is We are equal beings and the universe is our relations with each other. The second? The universe is made of one kind of entity; each one is alive, each determines the course of his own existence. If you remember this, that's all you really need to know to understand this book. Originally published in 1972, and in print for 15 years, THE LAZY MAN'S GUIDE TO ENLIGHTNMENT teaches you, amongst other things, how to feel good.
Author: Shaun David Hutchinson Publisher: Simon and Schuster ISBN: 1481449680 Category : Young Adult Fiction Languages : en Pages : 348
Book Description
From the author of We Are the Ants comes “another winner” (Booklist, starred review) about a boy who believes the universe is slowly shrinking as the things he remembers are being erased from others’ memories. Tommy and Ozzie have been best friends since the second grade, and boyfriends since eighth. They spent countless days dreaming of escaping their small town—and then Tommy vanished. More accurately, he ceased to exist, erased from the minds and memories of everyone who knew him. Everyone except Ozzie. Ozzie doesn’t know how to navigate life without Tommy, and soon he suspects that something else is going on: that the universe is shrinking. When Ozzie is paired up with the reclusive and secretive Calvin for a physics project, it’s hard for him to deny the feelings developing between them, even if he still loves Tommy. But Ozzie knows there isn’t much time left to find Tommy—that once the door closes, it can’t be opened again. And he’s determined to keep it open as long as possible.
Author: Jennifer Coopersmith
Author: Jennifer Coopersmith
Author: Jennifer Coopersmith
Author: Jennifer Coopersmith
Author: Lawrence Maxwell Krauss
Author: Lánczos Kornél
Author: Steven Weinberg
Author: Devon Price
Author: Jakob Schwichtenberg
Author: Thaddeus Golas
Author: Shaun David Hutchinson