It's a natural example ... The foam on your morning latte is fractal. In nature, bubbles that occur when ocean waves break or where raindrops have fallen create a self-similar pattern with thin ...

Still, its presence was constant and undeniable, and Patterns in Nature (University of Chicago Press) packs the chaotic beauty of the nature world into an explainable boxes no less wondrous ...

‘Perfect’ here means the lowest-energy configuration of packed bubbles of equal size ... the first time that the WP foam has been made. But the previous example was built by hand, one cell ...