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Microwave Power

  • January 3, 2015
  • By KIDS DISCOVER

Could spaceships ever be “fuel-less”? Some experimental engines, such as British scientist Roger Shawyer’s EmDrive, use microwaves instead of propellant to create thrust. Recent tests by NASA and others have shown that these engines could actually work … though they may break a law of physics. (Elvis Popovic / Illustration)

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