- Zamboni pile
The Zamboni pile (also referred to as a "Duluc Dry Pile") is an early electric battery, invented by
Giuseppe Zamboniin 1812.
A Zamboni pile is an "
electrostaticbattery" and is constructed from discs of silverfoil, zincfoil, and paper. Alternatively, discs of "silver paper" (paper with a thin layer of zinc on one side) gildedon one side or silver paper smeared with manganese oxideand honeymight be used. [cite book | last = Stillman | first = Benjamin | authorlink = | coauthors = | title = Principles of Physics | publisher = Theodore Bliss | date = 1861 | location = | pages = p. 576 | url = http://books.google.co.uk/books?id=da4IAAAAIAAJ&pg=PA577&dq=zamboni+cell&lr=&as_brr=1 | doi = | id = | isbn = ] Discs of approx. 20 mm diameter are assembled in stacks which may be several thousand discs thick and then either compressed in a glass tube with end caps or stacked between three glass rods with wooden end plates and insulated by dipping in molten sulfuror pitch. [Citation | last = Tinazzi | first = Massimo | author-link = | last2 = | first2 = | author2-link = | title = Perpetual Electromotive of Giuseppe Zamboni | date = | year = 1996 | url = http://www.brera.unimi.it/sisfa/atti/1996/tinazzi.html | accessdate = 2008-01-18]
Zamboni piles have output
potentials in the kilovoltrange, but current output in the nanoampererange. The famous Oxford Electric Bellwhich has been ringing continually since 1840is thought to be powered by a pair of Zamboni piles. [cite web | last = | first = | authorlink = | coauthors = | title = Exhibit 1 - The Clarendon Dry Pile | work = | publisher = Oxford Physics Teaching, History Archive | date = | url = http://www.physics.ox.ac.uk/history.asp?page=Exhibit1 | format = | doi =
accessdate = 2008-01-18]
* [http://www.uibk.ac.at/exphys/museum/en/details/electr/zambsaeule1.html Photograph of Zamboni pile, 1880]
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