Text and diagram explaining how to use 'The Improved Galvanic Machine'. Luigi Galvani (1737-1798) discovered 'animal electricity' in the late 18th century and demonstrated that nerves and muscles in animals function by tiny electrical currents, which can be stimulated by the application of electricity from outside. Electrical treatments were soon in great demand, and were believed to be able to cure all manner of complaints, from gout to paralysis. The term 'galvanise' - to shock or excite into action - takes its name from Galvani.
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