Barker, P. (2007) “Towards a cognitive history of the Copernican revolution” Organon, 35: 61-72; reprinted in M. Kokowski (ed.) The Global and the Local:
The History of Science and the Cultural Integration of Europe. Proceedings of the 2nd ICESHS ( Cracow, Poland, September 6-9, 2006), 302-309.
Commentator and Chair: “Astrology at the eve of modernity” History of Science Society, Alexandria, VA, November 2.
Invited Paper: “Why History of Science is Hard: Evaluating Lavoisier’s Contribution to the Chemical Revolution” Machette Foundation Conference, University of South Florida , November 16-17.
Organizer and presenter: Workshop on Academic Writing, PHIS annual meeting, University of Aarhus Conference Center, Sandbjerg, Jutland, Denmark, December 6-7 (with R. Schleifer).
Mellon/ACLS Dissertation Completion Fellowship Selection Committee, New York , March 16
Peter Barker (2011) “The Reality of Peurbach’s Orbs” in Patrick J. Boner (ed.) Change and Continuity in Early Modern Cosmology (New York: Springer, 2011) pp. 7-32.
Peter Barker,. “Logic of Scientific Discovery, (Popper)”, in Encyclopedia of Research Design, Neil J. Salkind (ed.). NY: SAGE, 2010, Vol.2, 728-730.
Content adviser for: Natalie M. Rosinsky, The Story of the Atomic Bomb: How It Changed the World (Mankato, MN: Compass Point Books, 2010).
“Copenhagen in Norman: Niels Bohr at the University of Oklahoma” Weitzenhoffer Theater, OU, following the last performance of Michael Frayn’s Copenhagen, directed by Susan Shaughnessy, Sept 12, 2010.
“Understanding Proliferation: The Last Days of the Manhattan Project”, International Society for the Study of European Ideas, Ankara, Turkey, August 2-6, 2010.
President & Local arrangements coordinator, Midwest Junto for the History of Science, Norman OK, March 26-27, 2010.
“On the Reality of Celestial Orbs. 1472-1609” History of Science Colloquium, University of Oklahoma, Feb 19, 2010.
Crowther, K. and Barker, P. (2013) “Training the Intelligent Eye: Understanding Illustrations in Early Modern Astronomy Texts. “ Isis, 104, 429-70.
Barker , P. (2013a) “Why was Copernicus a Copernican?” Metascience, 22, 1-6.
Barker, P. (2013b) “Albert of Brudzewo’s Little Commentary on Peurbach’s New Theorica”, Journal for the History of Astronomy, 44, 1-24.
Barker , P and Vesel, M. (2012) “Goddu’s Copernicus.” Aestimatio, 9, 304-36.