Journey to the dimensions of the world
Luciano Maiani · Physics World · 1994
"There are always explanations as to why the world has three dimensions. Well, there is only one world, and it is hard to tell if any particular explanation is right or not...". Richard Feynman in The Character of the Physical Law (1965) took the example of the world's physical dimensions to show what a theory should not attempt to address. Yet this is precisely the subject of this book by string theorist Michio Kaku, now at the City College of the City University of New York. But let's start at the beginning.