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Inventions

  • Game Code: 260061
  •  English    12     Public
    Inventions
  •   Study   Slideshow
  • something that can make and receive calls over a radio frequency
    cellphone
  •  15
  • .
    doorknob
  •  15
  • .
    axe
  •  15
  • .This can be, for example, to drive nails into wood, to shape metal, or to crush rock.
    hammer
  •  15
  • .
    lever
  •  15
  • a device used to convert electricity into light, consisting of a source of illumination
    light bulb
  •  15
  • An inclined plane, is a flat supporting surface tilted at an angle
    ramp
  •  15
  • a set of steps leading from one floor of a building to another, typically inside the building.
    stairs
  •  15
  • two parts rotate together in which a force is transferred from one to the other.
    wheel and axle
  •  15
  • .
    wedge
  •  15
  • .
    screw
  •  15
  • .
    nail
  •  15
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