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important inventions of the 20th century

  • First radio receiver

    First radio receiver
    invetion was invented by: Guglielmo Marconi this invention
    was the first radio receiver sucessfully received a radio transmission thus invetion changed people's lives because this could actually have people talk to each other
  • the first air conditioner

    the first air conditioner
    What started as an invention to control humidity in a New York printing plant in 1902 has forever changed the way people around the world live all because of Willis Carrier
  • the first gas motored airplane

    the first gas motored airplane
    The inventors of the first airplane were Orville and Wilbur Wright. On December 17, 1903, the Wright brothers made the first successful experiment in which a machine (aka airplane) carrying a man rose by its own power,
  • the first tractor

    the first tractor
    the first tractor was invented by Benjamin Holt, he invented the crawler tread tractor change the way people farmed in everyday lifestyle
  • theory of relativity

    theory of relativity
    The theory of relativity includes both the Special Theory of Relativity and the General Theory of Relativity. Both are credited to Albert Einstein. What made these discoveries so monumental was that they completely changed what we intuitively believed about the physics of our world and also added new dimensions to our understanding of physics.
  • the first piloted helicopter

    the first piloted helicopter
    The Helicopter has changed the World of Aviation in many ways.
    1. The ability to Medevac injured soldiers from the battlefield increasing the chance of survival by 70% over the land route of previous wars.
    2. It has been invaluable in Naval Aviation with the ability to rescue pilots that have had to ditch after takeoff or have crashed in general. Also can help in searching for a sailor who has fallen over board.invented by paul cornu
  • Model T

    Model T
    he Model T brought mobility and prosperity on an undreamed of scale through manufacturing efficiencies at a price that anyone could afford. The mass production process perfected the moving assembly line, creating and defining the industrial age and enabling Ford to steadily decrease the price of the Model T. In 1908, the first Model Ts sold for $825. By 1925, it sold for only $260.
  • the first gas mask

    the first gas mask
    the gas mask change people life's because it allowed people to breath in toxic areas had to like during the wars thats why inventor
    Garret A. Morgan invented it
  • electronic digital computer

    electronic digital computer
    the computer changed people's life's because because it allowed people to commucate across states and buildings so it made a big difference in the way people commucate inventor jhon Atanasoft-Clifford Berry
  • the first microwave

    the first microwave
    this invention allowed people to eat warm hot foods instead of cold foods because people didn't like eating cold noodles or chicken ect. they only like eating the that was susppose to be cold like ice crean and ice cream cake stuff like that thats inventor percy spencer invented the microwave