Electrical discharge watcher a horse and carriage

a horse and carriage

said to have been occupied by Anne Boleyn's father Sir Thomas Boleyn

on 12th February

View with figures gathered around listening to a speaker

Electrical discharge watcher a horse and carriageStudy 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