The Alexander Arrangement is a three-dimensional paper sculpture of the periodic table designed by Roy Alexander, with whom I collaborated on this version. For the first time this clever form of the table has been combined with my photographs of real element samples, resulting in a quite lovely object. The Alexander Arrangement deals with the fundamental problem of gaps in the traditional arrangement of the periodic table by wrapping the transition metals and the lanthanides/actinides into loops, so all the elements that are supposed to be next to each other actually are next to each other. You can read it as a complete spiral loop through all the elements without any
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.