The Ulam spiral
If we were to show graphically how prime numbers grow and expand, we’ll see an ever-expanding spiral – a Ulam spiral called after mathematician Stanislav Ulam who discovered it. I extracted my spiral pattern from Adam Freidin’s script on Observable.
That a logical progression of numbers set itself in a spiral-like shape is quite awesome. That from snail shells to Fibonacci & galaxies far far away, all are built after the shape of a spiral is mystifying. The randomness of the unexplained!