There are broadly three types of popular science books. There's the skim-level book that's descriptive but hasn't much depth, then there's the book that tries to go as deep as you can without getting into the mathematics, and finally there's the textbook lite. I would normally avoid this last category like the plague, but just occasionally one really works: and that's the case with Wonders in Motion . This is not a book that will appeal if you have an aversion to equations. I don't think there's anything that goes beyond the maths you'd get if studying it at school to age 18 - and you aren't expected to have much prior knowledge - but if you are happy with that, David Acheson does a great job of combining history of science stories with a the development of dynamics as an aspect of physics from Newton's second law to viscous flow of fluids. Sometimes reading it does feel a little like being lectured to, featuring rather more hard mental work ...
If there is still such a thing as GOFSF (good old-fashioned science fiction), Entanglement very much fits that category. Our central characters are the classic space travel misfits, on a survey vessel in the Asteroid Belt, hence the series title (this is very much a series book). Our hapless heroes get the opportunity to get the finders' fee on a missing piece of tech in a derelict ship. Briefly they're very happy - until they find out every government and dodgy corporation wants to get their hands on this technology, and will stop at nothing to do so. It all plays out nicely, with two set piece adventures. To be honest, Gerald Kilby's ideas are better than his writing style - but that wasn't a problem for Asimov, so it's not really a criticism. The writing is workmanlike, but rarely page turning, while the characters, if not two-dimensional are on the thin side. At least, unlike Asimov, he has significant female characters. What makes it GOFSF is the solid use of ...