History: A laboratory technician lifts two plastic rods from a boiling bath of hot sulfuric acid to demonstrate the newly invented Teflon. 1940s [2934x3763]

http://i.imgur.com/KWYifCS.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/58qjmx/a_laboratory_technician_lifts_two_plastic_rods/?utm_source=ifttt