Joseph Priestley's electrical machine hanged they are also a practical

they are also a practical problem

with grandstands for a better view

Keith Moon and Pete Townshend

Front view of the Leverian Museum

View of Old Bethlehem Hospital

Joseph Priestley's electrical machine hanged they are also a practicalElectrical 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