Preparing for balloon flight

August 20, 2008 | 9:16 p.m. CDT
Bill Clemons opens the blast valve, sending a propane-fueled fireball into his hot air balloon on August 24, 2007, at the Columbia Balloon Invitational at Corporate Lake. Clemons, who owns a ballooning business in Des Moines, Iowa, named this balloon "Color My World" after a Chicago song that he and his future wife danced to at his high school prom.

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