Month: July 2013

Still Going ‘Round in Circles

Still Going ‘Round in Circles

Well, Math Mondays might as well just go ahead and admit it. It is incurably addicted to great circles. Inspired by the latest reader feedback on the topic, Math Mondays decided to team up with Grace Whitney of Stony Brook, NY to polish off the outstanding great circle challenge: the 25-circle arrangement beloved of Buckminster Fuller. The ingredients of today’s approach are simple: a big transparent inflatable ball and 18.4 meters of elastic sewn into 25 loops just the right size to stretch around a great circle of the ball.

Which Pi do I have?

Which Pi do I have?

The Raspberry Pi isn’t just a single board any more, there are a growing number of different variants available. Unfortunately they all look rather similar, and sometimes it can be important which board is which. Fortunately there are a number of ways to figure out which board you have.