Editing Josiah Willard Gibbs (section)

=== Gibbs stamp (2005) ===

In 2005, the [[United States Postal Service]] issued the ''American Scientists'' commemorative [[postage stamp]] series designed by artist [[Victor Stabin]], depicting Gibbs, [[John von Neumann]], [[Barbara McClintock]], and [[Richard Feynman]]. The [[first day of issue]] ceremony for the series was held on May 4 at Yale University's Luce Hall and was attended by [[John Marburger]], scientific advisor to the president of the United States, [[Rick Levin]], president of Yale, and family members of the scientists honored, including physician John W. Gibbs, a distant cousin of Willard Gibbs.<ref name="stamp-issue">{{cite news |title=Yale scientist featured in new stamp series |url=http://www.yale.edu/opa/arc-ybc/v33.n29/story3.html |newspaper=Yale Bulletin & Calendar |date=May 20, 2005 |volume=33 |number=28 |access-date=November 30, 2012 |url-status=dead |archive-url=https://web.archive.org/web/20141030122112/http://www.yale.edu/opa/arc-ybc/v33.n29/story3.html |archive-date=October 30, 2014 }}</ref>

Kenneth R. Jolls, a professor of chemical engineering at [[Iowa State University]] and an expert on graphical methods in thermodynamics, consulted on the design of the stamp honoring Gibbs.<ref name="Jolls-stamp">{{cite news |title=Iowa State Chemical Engineer Drives Issue of New Stamp Honoring Father of Thermodynamics |url=http://www.eng.iastate.edu/coe/feature/jolls.asp |archive-url=https://web.archive.org/web/20121030193200/http://www.eng.iastate.edu/coe/feature/jolls.asp |archive-date=October 30, 2012 |newspaper=College Feature, Iowa State University, College of Engineering |year=2004 |access-date=November 17, 2012}}</ref><ref name="ISU-stamp">{{cite news |title=ISU professor helps develop postage stamp honoring noted scientist |first= Annette |last= Hacker |url=http://www.public.iastate.edu/~nscentral/news/04/nov/stamp.shtml |newspaper=News Service, Iowa State University |date=November 11, 2004 |access-date=November 17, 2012}}</ref><ref name="chem-eng-stamp">{{cite journal |year=2005 |title=Postal Service Pays Homage to Josiah Willard Gibbs |journal=Chemical Engineering Progress |volume=101 |issue=7 |page=57}}</ref>  The stamp identifies Gibbs as a "thermodynamicist" and features a diagram from the 4th edition of Maxwell's ''Theory of Heat'', published in 1875, which illustrates Gibbs's thermodynamic surface for water.<ref name="ISU-stamp" /><ref name="chem-eng-stamp" />  [[Microprinting]] on the [[Collar (clothing)|collar]] of Gibbs's portrait depicts his original mathematical equation for the change in the energy of a substance in terms of its entropy and the other state variables.<ref name="Spakovszky-stamp">{{cite journal |last=Spakovszky |first= Zoltan |year=2005 |title=Stamp of Authenticity |journal=Mechanical Engineering |publisher=ASME |volume=128 |issue=4 |page=7 |url=http://web.mit.edu/16.unified/www/FALL/thermodynamics/figures/MechEng-4-2006-Gibbs.pdf |archive-url=https://ghostarchive.org/archive/20221009/http://web.mit.edu/16.unified/www/FALL/thermodynamics/figures/MechEng-4-2006-Gibbs.pdf |archive-date=2022-10-09 |url-status=live}}</ref>