Where did modern scientific study and our common understanding of the universe originate? We’ll spend this hour with science journalist and writer Edward Dolnick. His new history is “The Clockwork Universe: Isaac Newton, the Royal Society, and the Birth of the Modern World” (Harper, 2011).

How do art experts “know” that an artwork is genuine? How do the forger’s fool them? We’ll find out this hour with journalist Edward Dolnick. His new book is “The Forger’s Spell: A True Story of Vermeer, Nazis, and the Greatest Art Hoax of the Twentieth Century” (Harper Collins, 2008).