Joseph Priestley's electrical machine T Salmon with two boys

with two boys

An MMC Wilmington Giant

20th March 1963

Prime Minister (1783-1801 and 1804-06)

' A doormat seller with mats draped over his body stands next to a woman with a bucket and broom

Joseph Priestley's electrical machine T Salmon with two boysElectrical machine developed by Joseph Priestley to aid his study of electricity. To operate the machine, the handle is turned to make the glass globe rotate and rub against a fixed pad which produces an electrical charge. Priestley included instructions on how to build electrical machines in his book 'A Familiar Introduction to the Study of Electricity', so that others could reproduce his findings. 1768