Researchers have developed a super-absorbent gel, made from affordable materials, that can suck moisture out of low-humidity air. When heated, the gel releases that moisture as fresh water. One kilogram of gel can theoretically produce nearly 6 liters of water at 15% relative humidity and more than 13 liters of water at 30% humidity, according to a study published in the journal Nature Communications. For reference, the Southwest’s Mojave desert generally ranges between 10% and 30% humidity.
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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.
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