Electrical discharge Pol de Limbourg 4th September 1980

4th September 1980

which portrayed him as a 'brain-sick shepherd prince'

Chris Hillman

depicting the Crucifixion

Lord Derby reads the card presented at the doors of the Palace by Egypt

Electrical discharge Pol de Limbourg 4th September 1980Study 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