Babbage: Power play

An unlimited supply of clean, carbon-free energy—nuclear fusion is a technology that could change the world. Can engineers make fusion work on a commercial scale? Also, mathematician Jordan Ellenberg on how geometry shapes the world. And, why one of the most common sporting injuries is more of a risk to women than men—and how to prevent it. Kenneth Cukier hosts For full access to The Economist’s print, digital and audio editions subscribe at economist.com/podcastoffer and sign up for our new weekly science newsletter at economist.com/simplyscience. Hosted on Acast. See acast.com/privacy for more information.