A group of four high school Nigerian teenage girls solved one of Nigeria’s biggest electrical challenge by inventing a system that uses urine to power generator. Their major goal in creating this invention was to reduce the production of carbon monoxide. Their invention comes only years after the famous cases of death from carbon monoxide poisoning that is common in Africa. The generator will produce electricity and release only water vapour from the urine.
You can watch the documentary on their invention by following this YouTube link :