Discover how to build a portable DIY solar charger for your smartphone using simple materials like copper foil tape, a micro-USB cable, and hot glue. This step-by-step tutorial guides you through each ...
Tech Xplore on MSN
Power at the micrometer scale: A battery built for the smallest machines
Sensors small enough to disappear into the body, microrobots that move without wires, and smart systems hidden inside ...
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