Michio Kaku, renowned theoretical physicist and #1 New York Times bestselling author of The Future of the Mind and The Future of Humanity, tells the story of the greatest quest in all of science. INSTANT NEW YORK TIMES BESTSELLERWhen Newton discovered the law of gravity, he unified the rules governing the heavens and the Earth. Since then, physicists have been placing new forces into ever-grander theories. But perhaps the ultimate challenge is achieving a monumental synthesis of the two remaining theories—relativity and the quantum theory. This would be the crowning achievement of science, a p ... More from Google