Elementary lessons in electricity & magnetism (1895)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916 · New York and London, Macmillan and co. · leaf 81
theother hand be presented to the knob of the jar, a brightspark will pass between the knob and the knuckle witha sharp report, and at the same moment a convulsive shock will be communicated to the muscles of thewrists, elbows, and shoulders. A safer means of dis-charging the jar is afforded by the… … brought near the knob of the jar, and a bright snapping spark leaping from knob to knob announces that the two accumulated charges have flowed together, completing the discharge. Sometimes a jar discharges itself by a spark climbing over the top edge of the jar. Often when a jar is well charged a…
Electricity
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