The ancient Monte Alto people of Mesoamerica, for example, used stone that had been magnetized when struck by lightning to build giant heads and potbellied sculptures centuries before the rise of the great Maya civilizations. A new study published in the Journal of Archaeological Science suggests this civilization, which flourished in present-day Guatemala around 500 B.C. to 100 B.C., must have had some way to detect the relative strength of the magnetized stones.
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.
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