At the end of the last Ice Age, it looked a lot different. Neighboring Lake Otero was beginning to evaporate, leaving behind selenite crystals that eroded into the sands of Alkali Flat. In the waning days of the Pleistocene, a human, a ground sloth, and a mammoth trudged across the eastern side of that disappearing lake. Now, well over 10,000 years later, researchers from Cornell University, Bournemouth University, and the National Park Service are using ground-penetrating radar to study the tracks they left behind.
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.