The Beauty of Roots (2011)

Thread from 2016: https://news.ycombinator.com/item?id=12280702

2014: https://news.ycombinator.com/item?id=8218980

2009: https://news.ycombinator.com/item?id=980043

That was beautiful. Kids can benefit from this stuff because it looks amazing and it reminds me of fractals