Invented in 1839 by William Grove, fuel cells promise to convert chemicals into electricity cheaply and efficiently.

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Fuel cells have been around since at least 1839, when the English scientist William Robert Grove built one out of platinum and zinc.

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William Wixon, owner of Wixon Advisors in Maple Grove, Minn.

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Cynthia Scott, the wife of truck driver William Scott, said Friday from the couple's home near Spruce Grove, Alberta, that her husband saw the collapse.

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