Glinting in the night, halfway up a hill in Japan, the greenhouse-like "Ku-An" test lab is lit by electricity harnessed from 1,500 wooden boxes of soil and compost.
Tiny light, big dream: Harvesting power from soil in Japan
Glinting in the night, halfway up a hill in Japan, the greenhouse-like "Ku-An" test lab is lit by electricity harnessed from 1,500 wooden boxes of soil and compost.