Noted author and columnist for the National Review John Derbyshire spoke about publishing his book "Prime Obsession: Bernhard Riemann and the Greatest Unsolved Problem in Mathematics." Gelf Magazine presents Geeking Out, a free, monthly speaking series featuring some of the best science writers and researchers around. Visit www.gelfmagazine.com, where you can read interviews with April's featured speakers: Glen Whitney, founder of the Math Factory; noted enigmatologist and author Paul Hoffman; and John Derbyshire, author of popular mathematically-themed books.
