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right hand holding a neck chain at chest level Inscribed: 'Painted by Margaret Carpenter
Prince Albert's private secretary
peers over the battlements at the Franchise Bill which
28th July 1970
Electrical discharge mb-code 1193751 right hand holding a neckPatterns 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 figures
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