If you are looking for a green clock, then let me acquaint you with this nature-inspired clock (Mud clock). Green as in? No batteries no charging, nothing doin. It’s a digital clock with leads, connecting blocks, copper string, zinc strips and wire. Plant your favorite flowers in the pots and attach the clock components. Soon it will display the accurate time without the need of any other additional power source. The mud clock gets its power from chemical reaction between mud and metal.
Via: Got2begreen
