Hello, On December 12th the 'Numberphile' channel on YouTube (math focused, 1 million plus subscribers) posted a video, 'How to Trisect an Angle with Origami', which list members might find of interest - though I'm sure the material is very familiar to them. The link, should anyone be interested, is: https://www.youtube.com/watch?v=SL2lYcggGpc I wish you all the best of folding for 2015 and beyond. Kind Regards,Kevin, UK
