Inspired by a talk about phyllotactic spirals and parastichies – those criss-crossing rows on sunflower heads and pineapples – and their relationship with the golden angle (137.5°) and Fibonacci numbers, I set out to see what kind of parastichies can be achieved with spiral arrangements based on other angles. This resulted in another online interactive I call the Parastichies Explorer.
In the same talk, John Edmark also covered how insights from plant growth patterns informed his Blooms sculptures which, when spun under stroboscopic light – or filmed at the right frame rate – appear to become animated. That gave me the idea to use the frame rate of a web browser to turn a rotating image on a web page into an online Zoetrope.
Animated Zoetrope Discs
Combining these two tools, I built on the Parastichies Explorer code to generate a few Zoetrope discs that, when spun at the right speed, start writhing and swaying just like Edmark’s Blooms.