Think ways to create incredibly small amounts of energy just about anywhere. Useful for a smart tag on a box of milk (their example). But they did say they woul

Think ways to create incredibly small amounts of energy just about anywhere. Useful for a smart tag on a box of milk (their example). But they did say they would love if it were possible to scale up and point out that being a big reach. But then plenty of big reaches have been made so I would suggest not considering that impossible. Also, this is created by a soil bacteria.