Electrical discharge Size:L: 80 x 60cm Fire and Sword

Fire and Sword

Murphy was a successful racing driver of the early 1920s

'Last Vestige of the River Fleet

26th April 1965

Electrical discharge Size:L: 80 x 60cm Fire and SwordStudy 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