Swirl by Swirl Spirals in Nature Author:Joyce Sidman Why do you pick up a snail shell and think its beautiful? ?Why does that shape occur in nature over and over again ? in rushing rivers, in a flower bud, even inside your ear? Spirals ? bold and beautiful, are simple but exquisite, familiar but mysterious -- are everywhere. With simplicity and grace, Krommes and Sidman not only reveal th... more »e many spirals in nature -- from fiddleheads to elephant tusks, from crashing waves to spiraling galaxies -- but also celebrate
the beauty and usefulness of this fascinating shape.« less