Basing a popular science book on some of the key constants of the universe is not original, but it’s a powerful approach because were it not for having some fixed values science would be practically impossible. What’s more a fair number of the constants here haven’t featured so strongly elsewhere, which is a good point for James Stein. Everything from the speed of light to the universal gravitational constant, with some more obscure figures too, features here. We get a fair amount of historical context, some of it highly entertaining. But this isn’t a science book and there is a bit of a problem with the scientific content. I don’t know if it’s because Stein is a mathematician, but there is more use of equations than I would expect in a popular science book, and the approach taken seems so strongly oriented to a mathematical mindset that it’s quite easy for the reader to get lost what is supposed to be an explanation, but actually makes a physical concept more complicated than i...