Fermi_Problem

# Fermi_Problem - Fermi Problems an introduction to approximation and thinking like an Engineer Dr Tom Chmielewski September 2011 The Fermi Problem 1

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9/17/2011 1 Fermi Problems an introduction to approximation and thinking like an Engineer Dr. Tom Chmielewski September 2011 9/17/2011 The Fermi Problem 1 Fermi Problem Named after physicist Enrico Fermi Involve making reasonable and justified guesses about quantities that seem impossible to compute based on the information available Solution teaches dimensional analysis, approximation, and the importance of clearly defining any assumptions. 9/17/2011 The Fermi Problem 2

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9/17/2011 2 Classical Example How many piano tuners are there in Chicago ?“ Reference Wikipedia – source of all knowledge some of which is incorrect. All numbers and assumptions follow this entry. http://en.wikipedia.org/wiki/Fermi_problem 9/17/2011 The Fermi Problem 3 What do we want to compute and what do we need 1. Number of pianos that are tuned each year Population of Chicago Number of Households How many households have pianos that are tuned yearly 2. Number of pianos that can be tuned by each tuner in a
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## This note was uploaded on 10/07/2011 for the course ENGR 201 taught by Professor Miller during the Fall '08 term at Drexel.

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Fermi_Problem - Fermi Problems an introduction to approximation and thinking like an Engineer Dr Tom Chmielewski September 2011 The Fermi Problem 1

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