A Million Business Cards Present a Math Challenge
THE HUFFINGTON POST, NOVEMBER 10, 2014

“Over the past month, people around the world have been building a mathematical structure out of more than a million business cards. The construction teaches its own mathematical lesson, which is undoubtedly part of the point in the colossal math project dreamt up by Matt Parker (Queen Mary, University of London) and Laura Taalman (National Museum of Mathematics).”