Shane Carwin is bright enough to handle the demands of a full-time job as a civil and mechanical engineer in northern Colorado. Maybe then, he'd be so kind as to explain the science behind the mind-scrambling statistics he's compiled. Twelve fights, 12 first-round stoppage victories. "I'm wordless. I'm speechless," was all he could muster after smashing his way through his latest victim, the one-time undisputed and one-time interim UFC champion Frank Mir at UFC 111. The challenges though, continue to get bigger, and the next problem the engineer must solve is the biggest in MMA right now: UFC heavyweight champion Brock ...