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This can be used to estimate the number of M&Ms in a jar.

http://blog.makezine.com/archive/2009/07/how-to_guess_the_number_of_mms_in_a.html?CMP=OTC-0D6B48984890

This info needs to be integrated with the article... perhaps with an explanation that presents this exercise as a metaphor for atomic scale counting techniques. —Preceding unsigned comment added by Rbenech ( talk • contribs) 21:01, 28 July 2009 (UTC) reply

I think Packing fraction is a better general title, because it has broader applicability (e.g. M&Ms mentioned above are not "atoms"). -- 99of9 ( talk) 05:57, 27 June 2014 (UTC) reply

VISION MUSAPINGURA IS A GREATEST METALLURGIST AND MATERIAL SCIENTIST EVER SEEN — Preceding unsigned comment added by 154.120.229.38 ( talk) 19:33, 13 October 2016 (UTC) reply