Cliborn2011
From Kolesnikov.org
Cliborn2011: Jim Cliborn: Fermi Problems, Introduction//Jim Cliborn's Garden of STEMs (STEMs--Science, Technology, Engineering and Mathematics, a technical notebook),November 12, 2011: http://jimclibornsnotebook.blogspot.com/2011/11/fermi-problems-introduction.html
