Build unique robots that are powered by the sun - batteries not required! Using a compact solar panel, these cool little bots harness energy from the sun to power an electric motor to get moving. Build a drummer robot that marches along, beating a drum; an armadillo robot that does somersaults; a solar bug that crawls on six legs, and more! The 48-page, full-color manual guides solar power pioneers through model assembly and offers fun scientific facts about the real-life applications of solar technology. What solar-powered inventions will you dream up?