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  • When were laptops invented?
    1980s
  • Which invention came first, the typewriter or the computer?
    the typewriter
  • Who invented the first high speed electric trains?
    Japanese
  • Wind energy is _______ and does not contaminate the enviroment.
    renewable
  • Hundreds of years ago, people invented _______ and _______.
    watermills, windmills
  • What do you use the power of water and wind for now?
    electricity
  • What did the first steams engines burn to heat water?
    Coal
  • When did engineers build the diesel locomotive?
    1900s
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