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An electrical instrument consisting of two plates, which can produce a spark.

Electrophotus

An electrical instrument consisting of two plates, which can produce a spark.

"The electrophorus and meethod of using. Charge B; place A in contact with B, and touch A (left illustration). The disc is now charged by induction and will yield a spark when touched by the hand (right illustration)." -Hawkins, 1917

Electrophorus

"The electrophorus and meethod of using. Charge B; place A in contact with B, and touch A (left illustration).…

"Illustrating how the electrophorus works" -Hawkins, 1917

Use of an Electrophorus

"Illustrating how the electrophorus works" -Hawkins, 1917

Alessandro Volta's design of the electrophorus. "An instrument for obtaining statical electricity by means of induction." -Whitney, 1911

Electrophorus

Alessandro Volta's design of the electrophorus. "An instrument for obtaining statical electricity by…