http://rulesofthumb.org Every Rule of Thumb on Earth in One Place 29 Jul 2010 03:38:01 -0600 Copyright c. 2008 rulesofthumb.org Your thumb and index finger will encircle four modest servings of uncooked spaghetti. Submitted by: James Colby, civil engineer http://rulesofthumb.org http://rulesofthumb.org/perma.php?ruleid=527 29 Jul 2010 03:38:01 -0600