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The Lazy Universe: An Introduction to the Principle of Least Action free ebook download

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Astronomy and Cosmology

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Author(s):	Jennifer Coopersmith

Date:	2017	Format:	pdf	Language:	English	ISBN/ASIN:	0198743041
Pages:	272	OCR:		Quality:		ISBN13:
Uploader:	eternal	Upload Date:	6/28/2022 8:10:13 PM

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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.

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	Title	Link	Password	Size (MB)	Thank to	Inform Admin
3130710	Book	https://nitro.download/view/1D791FC93C62...		2.00	eternal

Tags: Action Introduction Lazy Least Principle Universe

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The Lazy Universe: An Introduction to the Principle of Least Action free ebook download

Category: Astronomy and Cosmology

Description: Click to see full description

Category:
Astronomy and Cosmology