soil energy, Tag

Imagine a lamp that doesn't need to be plugged in - and that you have to water once a week. Ermi van Oers is making it happen with this incredible plant-turned-lamp. The Living Light is an off-grid light that's powered by...

Soil naturally contains energy conducive metals like zinc, copper and iron, and microbial fuel cells (sometimes referred to as an earth batteries) are capable of converting electrolytes in soil into usable energy...