In the late 1800’s, teacher and astronomer Sarah Ellen Harding Baker spent seven years embroidering a star-covered quilt for her classroom in Cedar County, Iowa. In lieu of satellite images, the wool appliquéd quilt was created as a visual aid for her classroom to try to visualize the broad expanse of the universe. The design of the quilt is similar to illustrations in astronomy books of the time. It features a bright sun at its center, with several planets moving around the large star with their own orbiting moons, and Halley’s Comet streaking into the upper lefthand corner.
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.