But in the case of the bismuth crystal, there is no diffusion. Molecules don’t shift randomly and spread out while reacting with each other. Nevertheless, Fuseya, Kapitulnik and several collaborators began to simulate bismuth crystal growth using Turing’s equations. After three years, they ended up with a simulated pattern, published last month in Nature Physics, that looked almost identical to the stripes in the real crystal. “It was really an amazing match,” Kapitulnik said. It convinced him that Turing’s mechanism was indeed responsible for the stripes in the bismuth. And it demonstrated once again how robust and powerful Turing’s original insight was.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.