Electrical discharge Pol de Limbourg on his Progress to Westminster

on his Progress to Westminster Hall'

A man and woman driving along a road

16th May 1978

One of them is attacking the Crown and Anchor sign with a sword

View of the corner of Chancery Lane

Electrical discharge Pol de Limbourg on his Progress to WestminsterStudy 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