Two years to the day the great physicist Professor Stephen Hawking was interred at Westminster Abbey, and at the time of his death, we spoke to one of the people that knew him best, Leonard Mlodinow.Leonard is an American theoretical physicist who worked with Stephen on the books The Grand Design and A Briefer History of Time, and his own book chronicling their time together, Stephen Hawking: A Memoir of Friendship and Physics (£20, Allen Lane), will be released in September this year.In this republished interview he speaks with BBC Science Focus editor Daniel Bennett about writing together, his qualities, and what they did when they weren’t talking physics.Let us know what you think of the episode with a review or a comment wherever you listen to your podcasts.Subscribe to the Science Focus Podcast on these services: Acast, iTunes, Stitcher, RSS, OvercastThis podcast was supported by brilliant.org, helping people build quantitative skills in maths, science, and computer science with fun and challenging interactive explorationsRead more about Professor Stephen Hawking:Can you solve these deviously difficult Stephen Hawking-inspired questions?Stephen Hawking (1942-2018): the theoretical physicist's life in picturesTwitter Tributes to Professor Stephen HawkingRemembering Professor Stephen Hawking  Hosted on Acast. See acast.com/privacy for more information.