Look Through a Tube, See a Square Opening

look in a round tube and see a square opening look in a round tube and see a square opening

Of course, if you look into a round tube, you'd expect to see a round opening at the other end. What would you see if you look through the tube shown here? You might not guess that you would see a square opening. The curves you cut at the end give the illusion that the round tube has transformed into a square one.


Materials

Steps

  1. Cut out the rectangular piece from the template.
  2. Wrap the pattern piece around the cardboard tube so that the top of the pattern lines up with the end of the tube and tape it in place.
  3. Cut along the curved lines.
  4. Look through the tube toward the end you just cut.

Notes

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