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By JOHN HOOK/Missourian

February 12, 2008 | 12:00 a.m. CST

Joe Wulff, director of research and development for AFuels, LLC, holds a cup of calcium carbide at a garage in northern Columbia on Friday. Calcium carbide reacts with water to produce acetylene, a cleaner and more efficient alternative source of fuel, Wulff says.

RELATED STORIES: Company sees bright future in its acetylene investment

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