The circle has Vitruvian man at the centre, showing how his arms and feet correspond to the divisions of pi on the circumference on the circle. A pink strip folds out from the cover and you can roll the circle to match the equation. I wanted to create a physical embodiement of a mathematical concept, in order to prove it. All numbers are man made, we alone recognize them, they are a truth to man alone. That our harmonious form (as exampled by Vitruvian man) corresponds to pi, a universal truth, is only our universal truth.

The concept therefore folds away mentally and physically.

Louise Marchal 2008