Electrical discharge mb-artist A_Heffer XXXI from Micrographia: or some

XXXI from Micrographia: or some physiological descriptions of minute bodies made by magnifying glasses with observations and Inquiries thereupon

bronchia Plate 3 from De organis

The villa has a greenhouse to one side

Cross country horse riding in Beaconsfield

Electrical discharge mb-artist A_Heffer XXXI from Micrographia: or somePatterns 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