Seven Houses Five Trees  by Deborah The Twelves  by Gerrie The Eyes are the 12N 12W by Helen
Midwayby Kirsten Twelfth of Twelve by Terry All Hands by Diane
Twelve Quilters by Francoise 12 months by Kristin Twelve Women by Karen
Double Six by Brenda Twelve by Twelve: The Board Game by Terri The Kissing Number by Nikki

The Kissing Number

by Nikki

12 is the "kissing number" in the third dimension. What? The kissing number is the number of spheres of the same diameter that can touch or "kiss" a center sphere at the same time. Basically, if you have 1 ball, twelve other balls of the same size can touch it at the same time without crowding anyone out. I've written more in my blog post.

The Kissing Number by Nikki
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