Popular Science June 1974 Stirling Cycle Engine Wernher von Braun Skylab

Vintage Popular Science Magazine June 1974 issue provides a fascinating look into mid-70s technology and science. The cover story highlights the Stirling-Cycle auto engine, a pollution-free alternative powered by stored heat. Inside, readers will find articles by Wernher von Braun on Skylab experiments, tips for improving car gas mileage, and features on ecology-friendly housing and high-speed surface-effect ships. The back cover features a classic full-page color advertisement for Twist Lemon Menthol cigarettes. This collectible publication serves as a time capsule for enthusiasts of automotive history, space exploration, and retro advertising.  I typically ship same or next day.   Your satisfaction is our priority. If for any reason you aren't satisfied with your purchase, please reach out to us before leaving a review!