Try Robert Heinlein; I learned a lot from the books he wrote in the 1950s. And he actually cared about technical details, as far as the science of the time allo

Try Robert Heinlein; I learned a lot from the books he wrote in the 1950s. And he actually cared about technical details, as far as the science of the time allowed; he spent hours calculating orbits just to get the timing in Space Cadet right.