« Facing Dry Year, CA State Water Board is Draining California Reservoirs | Why do we let the fact checkers run the world and silence all dissent? » |
Designer Henry Glogau developed a skylight that uses seawater to provide natural ambient light and clean drinking water. The device is charged by a mini solar panel during the day. Remaining sea salt is funneled into a dozen zinc and copper batteries that power a strip of light-emitting diodes (LEDs).