ENGLISH

Back-of-the-envelope physics

Book information

Publisher
Johns Hopkins University Press
Year
2003
ISBN
0801872634, 9780801872631, 0801872626, 9780801872624, 9780801881640
LCC
QC75 .S83 2003
Open Library ID
OL17720919M
Language
english
Format
DJVU
Filesize
782 kB (800312 bytes)
Series
Johns Hopkins Paperback
Pages
174\174
Topic
Physics
Library
Kolxo3
DPI
300
Time added
2009-12-04 00:34:26

Description

Physicists use "back-of-the-envelope" estimates to check whether or not an idea could possibly be right. In many cases, the approximate solution is all that is needed. This compilation of 101 examples of back-of-the-envelope calculations celebrates a quantitative approach to solving physics problems. Drawing on a lifetime of physics research and nearly three decades as the editor of The Physics Teacher, Clifford Swartz provides simple, approximate solutions to physics problems that span a broad range of topics. What note do you get when you blow across the top of a Coke bottle? Could you lose weight on a diet of ice cubes? How can a fakir lie on a bed of nails without getting hurt? Does draining water in the northern hemisphere really swirl in a different direction than its counterpart below the equator? In each case, only a few lines of arithmetic and a few natural constants solve a problem to within a few percent. Covering such subjects as astronomy, magnetism, optics, sound, heat, mechanics, waves, and electricity, the book provides a rich source of material for teachers and anyone interested in the physics of everyday life.

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