Electrical discharge mb-code 1646045 The main entrance to Middle

The main entrance to Middle Temple from Fleet Street

Farey delin' {John Farey junior (1791-1851)

The cross keys symbol in the background denotes the Papacy but

Plate 4 from The zoological miscellany

Electrical discharge mb-code 1646045 The main entrance to MiddleStudy 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