Wednesday, October 21, 2009

Want To Have Some Fun?

In my original blog project, I spent an entire year doing a daily new activity. Today I revisited the concept of New Things when I learned How to Draw a Circle and Its Centre Without Lifting Your Pencil, thanks to WikiHow.

This afternoon my throat started to feel scratchy--was it the beginnings of the flu, allergies, or something else? I decided to stay at home and take care of myself tonight in hopes of running away from any germs that might be trying to find me. A bit of mindless Web surfing led to my discovery.

The challenge is to draw the figure on the right on a piece of paper without lifting the pencil. How do you do it?
  • Draw a large dot in the middle of the paper.
  • Keeping the pencil on the paper, fold over the top edge of the paper until it touches the pencil. Don't crease the paper.
  • Move the pencil up onto the flap of folded paper (you're now working on the back side). The line you make will be drawn on the flap; the longer the line is, the larger your circle will be.
  • Draw a quarter circle, which will bring your pencil back to the edge of the folded-over paper. Draw right down off the edge and back onto the front side of the paper.
  • Unfold the paper. You're now on the correct side of the paper, ready to draw the circle around the dot.
This trick works with many types of geometric figures. I tried it with a square, a rectangle, and a star. I'm not very artistically inclined, so I stopped there.

1 comment:

  1. Very interesting! Thanks for sharing your secret :-)

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