The other day I mentioned to my students that before the advent of phones, internet, electronic computers, gps, PACMAN, airplanes, automobiles, household electricity, indoor plumbing, and disposable diapers there was a way for travelers to mark their location on the globe by using celestial navigation techniques - which i explained in the simplest of terms.... The students paid polite attention and only wrinkled their noses at the bigger words, but I dont think they believed me.
Joe
Joe
