This jar used to store an electric charge is credited to both E.G. von Kleist & Pieter van Musschenbroek
Von Kleist's hand and the water ... 
physicist Pieter van Musschenbroek invented a similar capacitor,... [DOC] [TLE] The Thirteenth Depository - A Wheel of Time Blog: Inventions From ... [PAR] Mar 18, 2002 ... Gunpowder is not used yet, for instance, though its military use in our ..... jar, the 
first device that could store large amounts of electric charge.