Keywords: Leyden jar.png Drawing of a Leyden jar an antique piece of physics apparatus for storing electric charge from an 1889 physics textbook It consists of a glass jar with metal foil glued to the inside and outside A metal electrode projects down through the wood stopper into the jar with a metal chain or spring attached to the end which made contact with the inner foil so it can be charged with electricity Downloaded 2010-06-11 from http //books google com/books id TN1pKNbiH94C pg PA61 James Edward Henry Gordon 1889 A Physical Treatise on Electricity and Magnetism 2nd Ed Vol 1 D Appleton Co New York p 61 fig 20; on Google Books 1889 James Edward Henry Gordon Public Domain - Gordon died in 1893 Leyden jars PD-old |