PositiveThe Pittsburgh ost-GazetteThe chapters are manageable chunks of famous theories, most recognizable even to those of us who don’t happen to have a Ph.D. Mr. Rovelli hits full stride in the fifth lesson, where he deals with loop quantum gravity theory — his area of expertise ... If you’re on the fence about reading this book, skip to the fourth or fifth lessons ... The book has three main ingredients: science, history and sentimentality. I prefer the first two, but the third does an acceptable job of tying the seven lessons together.
