Groovy Solar-Powered Gadgets for Summertime Fun

U.S. landfills are littered with 2.4 billion batteries every year, leaving toxins in our groundwater supply. Ditching battery-operated gadgets is one way you can make a conscious environmental statement. There are many gadgets that use the sun’s solar power instead of batteries as the main source to fuel energy. Check out these groovy solar-powered gadgets that you and your STEMists …