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.
What made Albert Einstein the genius that he was? Today on Focus, we're joined by biographer Walter Isaacson to talk about the life of the famous physicist whose greatest asset was his rebellious nature, his tendency to question everything, even that which was regarded as fact. Isaacson believes that this quality is essential to the modern scientific age, in which new and groundbreaking discoveries are so frequently based on creative solutions.