Electrical discharge Size:M: 60 x 45cm Plate 6 from Gleanings from

Plate 6 from Gleanings from the Menagerie and Aviary at Knowsley Hall

20th May 1954

Originally built for experimental purposes

'Thaves Inn' (ie Thavies' Inn)

Electrical discharge Size:M: 60 x 45cm Plate 6 from Gleanings fromStudy 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