Voltaic Pile
The Voltaic Pile may have been the first successful multi-cell battery. This video presents the history of this important device and explains how they are constructed. If you attempt to construct your own voltaic pile make sure you have adult supervision, someone with knowledge of electrical systems and safety procedures. Search the Internet for "voltaic pile" for more information about these devices.
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Science Online
http://electronics.howstuffworks.com/everyday-tech/battery4.htm
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