David Bois who writes the blog Id Eco Super Eco has put up a preview of his piece for Penny Experiment which I refer to as 78 RPM. In a shout-out to math a geometry geeks, he also made sure that 13 was included 6 times:
You can learn more about Dave and why the geekiness had to be included. Be sure to spend some time wandering around his blog and enjoy his perspective when you have some free time.
