Photographs don't do justice. Stop everything now and search for videos on YouTube.
replyYou can also search for boids to explore simple rules that replicate such dynamics.
Ooh boids, yes! One of my favorite books is Vehicles: Experiments in Synthetic Psychology. I learned about it from another favorite, Nature of Code, which has a great list of related books. https://natureofcode.com/resources/#further-reading
replyNature of Code is such a great book !
reply