A number of high-voltage dry piles were invented between the early 19th century and the 1830s in an attempt to determine the source of electricity of the wet voltaic pile, and specifically to support Volta ’ s hypothesis of contact tension.

A number of high voltage dry piles were invented between the early 19th century and the 1830s in an attempt to determine the answer to this question, and specifically to support Volta ’ s hypothesis of contact tension.

0.007 seconds.