History of American Technology

advances agricultural alternating current American American Revolution automobile became began Bessemer process blast furnace bridge building built carried cars century Charles Goodyear chemical chemistry Civil cloth colonies construction cotton declared demand designed developed device devised early electric engine England equipment established exhibits factory farm farmers field Franklin furnace glass grain gristmills guns heat hundred improved increased industry installed introduced invention iron John John Winthrop laboratory later leather locomotive machine machinery manufacture materials mechanical ment metal method middlings purifier miles mills motor nation naval NOTES FOR CHAPTER Oliver Evans operation patent Pennsylvania petroleum Philadelphia pig iron pioneer Pittsburgh plane plant plow President production proximity fuze radio railroad rails Revolution roads rubber saltpeter scientific scientists settlers ships skilled Society speed steam steamboat steel supply telegraph textile thousand tion transportation United vessels wheels wire wooden World War II York