US$ 65.00
King Louis Phillippe of France being greeted at New Cross Station
on 12th February
'Coming Down
Sandy Denny
Electrical discharge watcher King Louis Phillippe of FranceStudy 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