How to Make a Benham's Disk

The Benham's Disk is a disk which proves that the hand is quicker than the eye. If you don't agree with that, you can find that it is true by making a Benham's Disk.


  1. 1
    Gather your materials. Consult the "Things You'll Need" section for your needed materials.
  2. 2
    Draw a circle with five to six cm as radius on a white paper. Then, cut it out
  3. 3
    Colour one half of the circle in black colour. Divide the white half into four equal parts.
  4. 4
    In each segment, draw three black arcs about one-quarter inch or six mm thick as in the picture.
    Image titled Download benham disc
  5. 5
    Cut out a similar cardboard circle.
  6. 6
    Place the white paper on the cardboard disk.
  7. 7
    Push a screw through the center and secure it with a nut.
    Image titled Download (2) 4 benham disc sc

Things You'll Need

  • A cardboard disk.
  • White paper.
  • Scissors.
  • A black marker.
  • A screw with a nut.

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Categories: Crafts | Science