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.