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Rose Bushes under the Trees
11th December 1945
attending to the stout gentleman
Mercers' shop
Paternoster Row London 1829
Electrical discharge Waving Arms Rose Bushes under the TreesStudy 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
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