Did You Know? Part 9 of 453

May 10th, 2010

The möbius strip has only one face and only one edge. You can place a pencil in the center of the strip and draw a line all the way around it on both “sides” without ever lifting your pencil off it’s surface.


2 Comments...


  1. Jon  on  May 11th, 2010 at 8:58 am

    This killed my brother.


  2. Chris  on  May 26th, 2010 at 10:07 pm

    :(

Your Reply...