Watch LaterAdded 05:41 科學演講RoI How Do We Know That the Earth’s Magnetic Poles Have Flipped? – Christmas Lectures with James Jackson
Watch LaterAdded 01:18:51 科普直播RoI Computation and the Fundamental Theory of Physics – with Stephen Wolfram
Watch LaterAdded 53:42 科普直播RoI John Tyndall: The Physicist Who Proved the Greenhouse Effect – with Paul Hurley
Watch LaterAdded 04:06 科學演講RoI Projecting Sunlight Pictures Onto Plants – Christmas Lectures with George Porter
Watch LaterAdded 06:05 科學演講RoI What Happens To Sunbeams On Their Journey To Earth? – Christmas Lectures with George Porter