Let’s Geek Out on the Physics of Leyden Jars by Rhett Allain from on 2017-01-24 12:30 (#2A1XM) In a recent episode of 'MacGyver,' our hero uses a Leyden jar to store energy. What is a Leyden jar and how much energy could it store? The post Let's Geek Out on the Physics of Leyden Jars appeared first on WIRED.