Podcast: Antibiotics | Without. Omar El Akkad hosts this climate change series, looking at a different thing in turn that the world may have to learn to live without. This one explores the rise of fatal antibiotic resistance and what we might do about it (44m 32s)
Public lecture from Stanford mathematics professor Tadashi Tokieda, using magic tricks and origami, to explain shapes and numbers. Very approachable and entertaining, even for those like me with little grasp of the theory involved.