Are you sure we're thinking of the same book? The one i'm referring to [1] uses basic algebra (fractions, exponents, variables), only a couple of times in the e

Are you sure we're thinking of the same book? The one i'm referring to [1] uses basic algebra (fractions, exponents, variables), only a couple of times in the entire exposition if i remember correctly. Its precisely what I would think of as good, non-fake popular physics. Edit: On second thought, I suppose this really isn't "popular physics in the usual sense" as you described it, so we probably are referring to the same text! https://archive.org/details/in.ernet.dli.2015.151311/page/n7 https://archive.org/details/in.ernet.dli.2015.151311/page/n7