A polar grid/spider web coded using Processing and the Fisica Box2D wrapper library as part of the Processing Paris Masterclass taught by Hartmut Bohnacker.
A video recording is available here:
NOTE! Click Trust/Allow when the applet prompts you, as it is using Microphone data and it needs your permission for that.
To tweak this sketch, first download it.
Make your updates, then upload your tweak!