While warming up for a lunchtime basketball game, engineer Howard Stone and applied mathematician Jeff Aristoff wondered whether you could model the shape of a jump rope. They gave it a spin. They considered the centrifugal force, tension, air drag, made a mini robot jump-roper, took high-speed video of a colleague jumping rope, and developed a detailed mathematical model that describes the shape of the rope in the air. If nothing else, it was a good exercise, they say.
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, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, 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.