Guest: Simon Winchester.

On April 18, 1906, a magnitude 8.5 earthquake rocked San Francisco and left the city in ruins within a minute. Today on Focus, geologist and author Simon Winchester joins the show to talk about the event's impact on human history and how recent scientific advances have revealed the ancient subterranean processes that fueled it—and almost certainly will cause history to repeat itself.

Guest: Simon Winchester.

China was once the world's most technologically advanced country. Writer Simon Winchester joins Focus today to talk about his new book The Man Who Loved China, in which he tells the tale of Joseph Needham, the Cambridge scientist who discovered the deepest secrets of the frontier nation.

Guest: Simon Winchester.

On April 18, 1906, a magnitude 8.5 earthquake rocked San Francisco and left the city in ruins within a minute. Today on Focus, geologist and author Simon Winchester joins the show to talk about the event's impact on human history and how recent scientific advances have revealed the ancient subterranean processes that fueled it—and almost certainly will cause history to repeat itself.

Guest: Simon Winchester.

On April 18, 1906, a magnitude 8.5 earthquake rocked San Francisco and left the city in ruins within a minute. Today on Focus, geologist and author Simon Winchester joins the show to talk about the event's impact on human history and how recent scientific advances have revealed the ancient subterranean processes that fueled it—and almost certainly will cause history to repeat itself.