Rammed earth, bottle walls, straw bale, rubber tire walls, recycled plastic — there are so many building material alternatives. Some work, some really, really don’t.
Here’s yet another material proponents say is the alternative material to pay attention to: hemp blocks. These are LEGO-like blocks made from hemp fiber and lime. All sorts of promising benefits are claimed: Lightweight (about 25 pounds/block), fire resistant, highly insulating (10x more than concrete), carbon negative (it sequesters more carbon than it creates in its life cycle), and it doesn’t require mortar.
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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