Electrical discharge Size:Standard: 6 x 4in Two fishermen and a boy

Two fishermen and a boy gossiping in the hold of a boat

Galvani's experiments on the effect of electricity on dissected animals in the 1780s and 1790s

Saturday 9th December 1967

using a Wimshurst machine (electrostatic generator) and two 10-gallon Leiden jars

Electrical discharge Size:Standard: 6 x 4in Two fishermen and a boyStudy of patterns produced by electrical discharges on surfaces revealed by dusting with powdered red lead and sulphur. Sometimes termed 'Lichtenberg figures'. These experiments were conducted at Cragside in Northumberland, England, using a Wimshurst machine (electrostatic generator) and two 10 gallon Leiden jars. Current was conveyed to two rod conductors with a spark gap at which coated wires discs or plates were positioned. Lord Armstrong exhibited