Extreme Science: Penny Shine

What you will need:

  • (2) notebooks containing at least 70 pages each
  • Adult supervision


  • Rope
  • (2) pieces of PVC pipe approximately 6” in length


  1. Lay your notebooks flat on the table side by side.  Leave just enough space between your notebooks so that you could just fit one more notebook in between them as shown:

  2. Start by opening the cover of one notebook towards the other notebook.  The cover should come close, but not be touching the other notebook.
  3. Now open the cover from the second notebook so that it lays on top of the cover from the first notebook as shown.
  4. Continue opening the pages from each notebook, alternating from one notebook to the other until you have both notebooks woven together as shown.
  5. Now, try to pull the notebooks apart by holding then near the spiral.  Try it with a friend.  You can even add a rope through the holes as shown to see if that will help…..

What is going on?

You will find that it is almost impossible to pull the two notebooks apart after weving the pages together.  The notebooks are actually held together due to friction.  Wikipedia defines Friction as “the force that resists the relative motion of solid surfaces, fluid layers, and material elements from sliding against each other.”  Since you have woven the pages together, each page is now in contact with two other pages – one on each side of it, which has created enough friction that you could even hook these notebooks to a car and pull the car without the notebooks coming apart!

Radical Rick

Extreme Science



Recommended for you