The Cray 2 was an unusual computer even by the standards of its designer, Seymour Cray. About the size of a large washing machine, it was cooled by immersion in a liquid called Flourinert that had been developed by 3M, and that was occasionally used as a human blood substitute during surgery. The machine was housed in an aquariumlike structure, and was affectionately nicknamed “bubbles.”
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.