Ww2

1900-2001 by cm

By clint 1
  • Period: to

    1900-2001

  • zeppelin

    zeppelin

    •The zeppelin invented by Count Ferdinand von Zeppelin.
    ferdinand mad the zeppelin for the war and thenafter to get to city to city mad travil easy
  • lie detector

    lie detector

    •The lie detector or polygraph machine is invented by James Mackenzie
    the lie detector was for hard cremanals to find the truth of what happend
  • helicopter

    helicopter

    •The very first piloted helicopter was invented by Paul Cornu
    it stade in the air for 2 minutes

    people was inprest that someone made that
  • toaster

    toaster

    •The pop-up toaster invented by Charles Strite.
    the toaster changed wemons life for ever because they can put bread in and start geting every thing reday for sandwithes
  • yo-yo

    yo-yo

    •Yo-Yo was invented by 1929 and was a fast seller at first but slowed down
  • calculator

    calculator

    •The first handheld calculator invented was in 1967
    it changed the would for ever by giving people a way to do math with out having to writhing it all down
  • floppy disk

    floppy disk

    •The floppy disk invented by Alan Shugart.
    the floppy disk mad it easy to save documents and photso