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battery, electric
(Encyclopedia)CE5 Lead storage cell: At the lead-dioxide electrode, electrons from the circuit combine with lead dioxide and sulfuric acid to form lead sulfate and water. At the spongy-lead electrode, lead react...archaeology
(Encyclopedia)archaeology ärkēŏlˈəjē [key] [Gr.,=study of beginnings], a branch of anthropology that seeks to document and explain continuity and change and similarities and differences among human cultures. ...West Virginia
(Encyclopedia)CE5 West Virginia, E central state of the United States. It is bordered by Pennsylvania and Maryland (N, NE), Virginia (E and S), Kentucky (W) and, across the Ohio River, Ohio (NW). Economic cond...American art
(Encyclopedia)American art, the art of the North American colonies and of the United States. There are separate articles on American architecture, North American Native art, pre-Columbian art and architecture, Mexi...Browse by Subject
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