I'm not sure but I think it a right of passage into manhood that a one time or another you become fascinated with Popular Science magazine. Possibly due the fact that most doctor, dentists, and oil change stores have several years of back issues in the waiting rooms. Now Google and Popular Science have put all 137 years of Popular Science on line. Here is a link to a 1959 issue of the magazine found when I searched on air car. Sure enough some Doctor invented one and is featured in an article on "Cars Without Wheels". Interesting to see how many of the features of the magazine are still familiar to me even if I haven't seen an issue for quite some time. It is also interesting to see the adds change as you scroll thru the pages.