Engineering in History

American Aqueduct arch beam began boiler Britain Britannia Bridge Brooklyn Bridge builders building built cable canal carried cars Catskill Aqueduct cent century B.C. coal concrete construction Courtesy Croton cylinder dams developed device diameter direct current Eads early Egyptian electric engi England Erie Canal eyebars feet long Figure France French Greek highway horsepower hydraulic improved inches increased industry installed invented iron later London machines masonry material mechanical Menai Straits miles Minoan Mississippi modern motor Newcomen Newcomen engine nineteenth century Ohio Oliver Evans operated Paris patent piers piston pounds pozzuolana pressure produced pumps railroad rails railway reservoir River roads Roman shaft ship span speed steam engine steam locomotives steel Stephenson stone structure supply suspension bridge tion tons Tower Subway towers traffic train transportation truss tubes tunnel turbine United vertical Vitruvius water wheels Watt weight wire wooden York