books.google.gr - "[Greene] develops one fresh new insight after another...In the great tradition of physicists writing for the masses, The Elegant Universe sets a standard that will be hard to beat." --George Johnson, The New York Times Book ReviewIn a rare blend of scientific insight and writing as elegant as the theories...http://books.google.gr/books/about/The_Elegant_Universe.html?hl=el&id=8QYs7n3klvYC&q=circular+dimension&utm_source=gb-gplus-shareThe Elegant Universe
