Mathematics, spirals, nature, growth. Visualization and code by the amazing ひさだん, @hisadan, scrapbox.io/hisadan/, CC BY-SA 2.0. Code: //#つぶやきProcessing float r, t; void setup() { size(800, 800); } void draw() { background(0); stroke(-1); for (r=0;… pic.twitter.com/VzchEnCPJ4