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	Voltaic pile - Biocrawler
		The Voltaic Pile was invented by Alessandro Volta in 1800.
		In his research, Volta placed together several pairs of alternating copper (or silver) and zinc discs separated by cloth and soaked the cloth in brine (salt water) to increase conductivity.
		Humphry Davy showed electricity from voltaic piles were caused by the chemical reaction (not differentials between metals theretofore believe).
	www.biocrawler.com /encyclopedia/Voltaic_pile (190 words)

	Alessandro Volta
		Volta, a former high school physics teacher, found that it was the presence of two dissimilar metals, not the frog leg, that was critical.
		In fact, Volta, who generously coined the term galvanism, wrote that Galvani's work "contained one of the most beautiful and most surprising discoveries." Upon demonstrating the workings of the voltaic pile to the French Academy of Science, he was made into a count of Lombardy by Napoleon Bonaparte, who had dominated that part of Italy.
		Volta invented the so-called Volta’s pile (or voltaic pile); the electrophorus; an electric condenser; and the voltaic cell.
	www.corrosion-doctors.org /Biographies/VoltaBio.htm (585 words)

	Voltaic Cell
		A voltaic cell is a type of battery, and may refer to either a galvanic cell or a voltaic pile.
		The voltaic pile was invented in 1800 by Alessandro Volta, who discovered that certain metals and chemicals, placed in contact with one another, produce an electric current.
		Instead of working with chemical reactions like the voltaic pile, the Galvanic cell depends on the two metals dissolving in their electrolyte at different rates, resulting in one metal being charged more negatively and polarizing the electrolyte.
	www.iscid.org /encyclopedia/Voltaic_Cell (274 words)

	Chapter Origin of power in the voltaic pile. of Faraday as a Discoverer by John Tyndall
		You cannot separate the moral and emotional from the intellectual; and thus it is that the discussion of a point of science may rise to the heat of a battle- field.
		Volta himself knew nothing of the chemical phenomena of the pile; but as soon as these became known, suggestions and intimations appeared that chemical action, and not metallic contact, might be the real source of voltaic electricity.
		To enable the voltaic spark to pass through air before the terminals of the battery were united, it was necessary to exalt the electro-motive force of the battery by multiplying its elements; but all the elements Faraday possessed were unequal to the task of urging the spark across the shortest measurable space of air.
	www.bibliomania.com /2/9/72/119/21389/1.html (815 words)

	Museum of Electricity and Magnetism - Voltaic Pile
		The voltaic pile, invented by Alessandro Volta in 1800, was the first device to provide a steady supply of electricity.
		Volta’s ongoing disagreement with Luigi Galvani served as the impetus for its construction.
		The voltaic pile soon became a favorite at public and private demonstrations, which were a form of popular entertainment during the period.
	www.magnet.fsu.edu /education/tutorials/museum/voltaicpile.html (838 words)

	Highbeam Encyclopedia - Search Results for Voltaic pile
		Volta invented the so-called Volta's pile (or voltaic pile); the electrophorus ; an...
		Bicentennial of Alessandro Volta's Invention of the "Electric Pile": Discovery of the Electrical Basis of Chemistry.
		One of Volta's fast batteries was made from a pile of cardboard disks soaked in acid (or sea water) and layered...
	www.encyclopedia.com /SearchResults.aspx?Q=Voltaic+pile (900 words)

	Voltaic - definition from Biology-Online.org
		Of or pertaining to voltaism, or voltaic electricity; as, voltaic induction; the voltaic arc.
		Voltaic pile, a kind of voltaic battery consisting of alternate disks of dissimilar metals, separated by moistened cloth or paper.
		Voltaic protection of metals, the protection of a metal exposed to the corrosive action of sea water, saline or acid liquids, or the like, by associating it with a metal which is positive to it, as when iron]] is galvanised, or coated with zinc.
	www.biology-online.org /dictionary/Voltaic (220 words)

	Voltaic pile Information
		In his research, Volta placed together several pairs of alternating copper (or silver) and zinc discs separated by cloth and soaked the cloth in brine (salt water) to increase conductivity, and an electrical current was produced.
		Contact tension was an early theory that attempted to explain the action of the voltaic pile; it is now an obsolete scientific theory and has been replaced by the current theories of electrochemistry.
		A number of high-voltage dry piles were invented between the early 1800s 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.
	www.bookrags.com /Voltaic_pile (297 words)

	Mag Lab Education - Interactive Tutorials: The Voltaic Pile
		Alessandro Volta, a scientist who worked not far from Galvani, thought that the “animal electricity” observed by Galvani was actually a phenomenon related to the contact between metals and moist materials.
		Volta’s work in this area led to his invention, in 1800 of the first electric battery, which came to be widely known as the voltaic pile.
		Volta’s invention of the pile was a momentous scientific breakthrough, providing the first constant source of electricity and enabling many other advances.
	www.magnet.fsu.edu /education/tutorials/java/voltaicpile1/index.html (380 words)

	Alessandro Volta: The Voltaic Pile Experiment - The Invention of the Battery
		with Galvani's theory of animal electricity that led Volta, in 1800, to build the voltaic pile to prove that electricity did not come from the animal tissue but was generated by the contact of different metals in a moist environment.
		Most historians attribute the invention of the battery to Alessandro Volta since his voltaic pile was the first battery that produced a reliable, steady current of electricity.
		Volta found that this wet stack of “dissimilar metals” created a small electric current, and this current could be drawn off through wires and used for experiments.
	www.juliantrubin.com /bigten/voltapile.html (635 words)

	Volta
		Volta was born to nobility that had moved down in social station.
		Volta became fascinated with the phenomenon of the age, electricity.
		Throughout his life, though, Volta was able to shift with the changing politics of the time and to remain in good graces with whatever government was in power.
	www.italian-american.com /volta.htm (916 words)

	CATHOLIC ENCYCLOPEDIA: Alessandro Volta
		Sweden described an electrophorus in 1762, Volta's was the first practical machine of the kind and, therefore, the prototype of the rotary influence machines of the present day, such as the Holtz, the Voss, and the Wimshurst.
		The voltaic battery of 1800 marks an epoch in physical theory as well as in the application of science to the welfare of mankind.
		In the summer of 1899, the centenary of the invention of the voltaic battery, an exposition was held in
	www.newadvent.org /cathen/15503a.htm (762 words)

	Super Scientists - Count Alessandro Volta
		Born in Como, Italy, into a noble family, Count Volta was a physicist and pioneer in the study of electricity.
		The Voltaic Pile consisted of discs of copper and zinc separated by discs of paper or cardboard (soaked in salt water).
		Volta's battery was later refined by other scientists, and the French emperor, Napoleon, made Volta a "Count" for his discovery.
	www.energyquest.ca.gov /scientists/volta.html (263 words)


		This voltaic pile consists of thirty metal disks separated by layers of (dampened) cloth.
		During the first part of the nineteenth century large voltaic piles were constructed to provide sources of continuous current.
		Volta demonstrated the actions of piles such as the one shown to Napoleon who was reportedly quite impressed.
	www.ece.umd.edu /~taylor/volta.htm (80 words)

	Inventor Alessandro Volta Biography
		Volta was born in Como and educated in the public schools there.
		By 1800 he had developed the so-called voltaic pile, a forerunner of the electric battery, which produced a steady stream of electricity.
		The "Alessandro Volta" Centre for Scientific Culture is a non profit organization acting since 1982, supported by the local Administrations of Region Lombardy and Province Como, the Como Town Council and the Chambers of Commerce of Milano and Como.
	www.ideafinder.com /history/inventors/volta.htm (1110 words)

	This Month in Physics History: March 20, 1800: Volta describes the electric battery
		Volta’s early work had already made him a well-known scientist, but his greatest contribution to science was the voltaic pile, which he invented as part of a scientific dispute with Luigi Galvani.
		Volta found that different types of metal could change the amount of current produced, and that he could increase the current by adding disks to the stack.
		Volta soon traveled to Paris and demonstrated his invention, which he initially described as an “artificial electric organ,” emphasizing that animal tissue was not needed to produce the current.
	www.aps.org /publications/apsnews/200603/history.cfm (899 words)

	Voltaic Pile
		Galvani concluded that the effect was due to electricity in the dead frog's body, which he called "animal electricity." Volta repeated Galvani's experiments and concluded that the source of electricity did not come from the frog, but rather from the contact of the two dissimilar metals (the scalpel and the lab table).
		The voltaic pile is made of two different metals, for example zinc and silver, separated by a cardboard- or paper-like material soaked in a weak acid, like vinegar.
		Comparing the voltaic pile to modern batteries, we see that the two metals are the two electrodes and the wet cardboard is the electrolyte.
	www.thebakken.org /Frankenstein/voltalic-pile.htm (259 words)

	Voltaic Pile
		In the Pile that Volta described in 1800, a disk of copper is placed at the bottom, followed by a disk of cloth soaked in brine or acidulated water, followed by a disk of zinc.
		The voltaic pile at the left, in the collection at Dartmouth College in Hannover, New Hampshire, is unusual in its provision of a built-in spark gap.
		Electrochemical Cells, which were developed from Volta's basic idea of dissimilar metals separated by an electrolyte, were developed in the first half of the 19th century.
	physics.kenyon.edu /EarlyApparatus/Electricity/Voltaic_Pile/Voltaic_Pile.html (231 words)

	The voltaic pile
		In particular, Volta emphasized the continuity of the process, but not having an instrument for the direct detection of continuous flow of electrical charge, he had to adduce as evidence only his physiological sensations in grasping the terminals and allowing conduction to take place through his own body.
		The voltaic pile, which we now recognize under the name of "electrical battery," produced an immediate sensation and revived the lagging research in electricity.
		Very shortly after receipt of Volta's letter in London, Nicholson and Carlisle, having constructed a pile in accordance with Volta's instructions, followed up the chance observation of evolution of gas at the terminals of the pile where the connecting wires had been wetted with water to provide a better electrical connection.
	www.cartage.org.lb /en/themes/Sciences/Physics/Electromagnetism/Electrostatics/Electricfield/voltaicpile/voltaicpile.htm (415 words)

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