Chaos Theory, String Theory, the Theory of Relativity? Intelligent Design? Schrodingerżs Cat and Pavlovżs Dog? Sure, you know what they all mean. That is, youżve certainly heard of all of them. But do you know enough about them to join a dinner party debate or dazzle the bar with your knowledge? 30-Second Theories takes a revolutionary approach to understanding the 50 most significant and intriguing scientific theories. It challenges a half-century of leading boffins to abandon their beloved jargon and explain the most complex theories in half a minute - using nothing more than two pages, 300 words, one flow chart, and a picture. Time might well be relative, but itżs also precious in a world that seems to spin ever faster, and here, in one unique volume, you have the opportunity to pick the potted brains of our leading scientists and understand the key notes of our harmonious universe in less time than it takes to scratch your head.