how many points
Tape two pencils together so that the points are even. Also
be holding a single pencil. Have someone close their eyes.
Place the double pencil points on the person's forearm. Ask the
person how many pencil points are touching their arm. They will
likely say one. Touch the double pencil points to one of their
fingertips. This time they will feel two points.
This happens because a person's sense of touch is much more
developed on the fingertips than on most other parts of the
body.