Ví dụ công khai
With conventional fuel cells as their model, researchers learned to use similar chemical reactions to make a fuel from microbes in pee.[…]They got to use new, clean toilets lit by the power of their own pee.[…]Microorganisms that feed on nutrients in urine can be used in a microbial fuel cell that generates electricity – or "pee power," as the Sesame girls called it.