The only session featuring contributed historical talks took place on Sunday morning. One invited talk was added to the session, the talk given by the FHP’s first essay contest winner Ryan Chaban. This talk was very well received and helped to anchor the session. Chaban’s subject was General Atomic’s contribution to Fusion research and his talk was both entertaining and informative. Virginia Trimble, who also spoke in the Feynman session, gave an interesting talk on the difficulties experienced in the 19th century in organizing transit of Venus and eclipse expeditions. Don Salisbury gave a talk which bridged the divide between history and physics, discussing a successful path towards a quantum gravity theory in vacuum. Finally, Per Carlson concluded the session with an entertaining talk discussing how Carl Anderson’s famous positron cloud chamber track could have been an upward moving positron.

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