Dr Karl Kruszelnicki burst onto the scene in 1981 when he began presenting the Great Moments In Science segment on radio Double J (the precursor to Triple J) to pay his way through medical school. With his trademark fast-talking, zany take on anything and everything scientific, he quickly built an audience keen to learn more about our amazing world and be entertained at the same time. Since then, his media career has exploded and now includes TV, books, newspapers, magazines, scripting, professional speaking, and of course, the Net.