A Better Solar Panel Through Buckets of Water, Rocks

Rare is the tech story whose main development is decidedly low-tech – but not impossible. Rather than a fancy atomic clock or rat cyborgs, for instance, this tech story deals with buckets of rocks and water. Well, solar panels too, but that’s not the cool new part.Today, at a meeting of the American Physical Society, Colgate University physicist Beth Parks described a new way to wring even more energy from a solar panel — a major development for people with no access to reliabl