How to Make a Newton Disc

Have you heard of a Newton disc? Discovered by Isaac Newton, it's a disc with segments containing al the colors of the rainbow. When spun, the disc appears white![1]

Steps

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    Cut out a circle of any size from the cardboard.
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    Cut out a circle from the paper. It should be of the same size as the cardboard circle.
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    Paste the paper circle on the cardboard circle with glue.
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    Divide the circle into seven evenly-spaced triangles.
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    Fill in the triangles with the colors of the rainbow, with one color in each triangle.
    • The colors of the rainbow are Red, Orange, Yellow, Green, Blue, Indigo and Violet.
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    Using your pencil, punch a hole in the center of the circle. Then insert your pencil in the hole with an inch of it sticking out the other side. It should be sharpened.
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    Glue or tape your pencil to the circle to secure it and you are done!
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    Try it out! To see its effect, spin it like a top and watch the magic!

Tips

  • Ideally, you should use either crayons or sketch pens as colors (optional).

Things You'll Need

  • Scissors
  • Ruler (or scale)
  • Glue or tape
  • Cardboard
  • Compass (the one you use in maths class)
  • Paper
  • A short, sturdy pencil
  • Colors

Article Info

Categories: Science for Kids | Crafts