Technological Changes Of The 20th Century

By S643295
  • The Suspension Bridge

    The Suspension Bridge
    The suspension bridge was invented by Augustus Roebling. Other invention that help the development of the suspension bridge were steal cables. It helped Americans because it gave them more ways to get places faster. http://www.historyofbridges.com/facts-about-bridges/suspension-bridges/
  • Web-Perfecting press

    Web-Perfecting press
    The web-perfecting press wasn't invented by a specific person. An invention that helped the development of the web-perfecting press was printers. It helped American's lives by letting them get more paper cheaper, and way faster.
  • Skyscrapers

    Skyscrapers
    Skyscrapers were invented by Louis Sullivan Other inventions that helped the development of the skyscraper were elevators. These building helped the Americans by giving them hope because people actually managed to build these types of building which seemed impossible to do.
  • The Kodak Camera

    The Kodak Camera
    The Kodak Camera was invented by George Eastmen. An invention that helped the development f the Kodak camera was the camera itself. This helped Americans by letting them get their pictures straight away after taking it instead of having to wait so long to get them. https://americanhistory.si.edu/collections/search/object/nmah_760118
  • Urban Planning

    Urban Planning
    Urban planning was a concept created by Fredrick Law Olmsted. No inventions actually helped the creation of this concept. It helped American's by letting them see places becoming more modernized, like a swampy area becoming a beautiful park or other things like that.
  • Airmail

    Airmail
    Airmail was invented by Orville and Wilbur Wright. The main invention that helped with the development of this invention was the Airplane. It helped Americans by getting their mail to the faster and also sending mail to other faster. https://about.usps.com/who-we-are/postal-history/airmail.pdf
  • Electric Transit

    Electric Transit
    The Electric transit wan't created by anybody specifically. The main invention that helped with this one was electricity. This helped the American's by giving them new transportation in order to get places faster and easier.