Exploring the Deep Frontier with Sylvia Earle (1/23/2012)
Mission Blue: Protecting the Blue Heart of the Planet with Sylvia Earle (1/16/2012)
Physics and History: Links Between Two Cultures Forged in the Baroque with John Heilbron (3/10/2008)
Explorations of the Mind - Intuition: The Marvels and the Flaws with Daniel Kahneman (4/9/2007)
Gene, Organism and Environment: Bad Metaphors and Good Biology with Richard Lewontin (2/9/2004)
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