Four teenage African girls have come up with a urine-powered generator ... which they claim generates one hour of electricity from one liter (about a quart) of urine. The pee-powered product made its debut at Maker Faire Africa in Lagos, Nigeria. Urine is put into an electrolytic cell, which separates out the hydrogen. The gas cylinder pushes hydrogen into a cylinder of liquid borax, which is used to remove the moisture from the hydrogen gas. This purified hydrogen gas is pushed into the generator. The girls will probably be famous chemists one day, in any case, but they aren't the first to propose urine (or more solid human and animal waste) as a possible alternative fuel. Last year, in one example, researchers from Ohio University came up with their own technology for extracting hydrogen from urine. Doing so, they say, requires less power than plucking it from water, as hydrogen can be separated more easily from the ammonia and urea chemical compounds present in pee. The four African teens likely are the youngest researchers yet to dabble in pee as power. Skepticism aside, can we all just agree that the foursome should be lauded for their efforts to find alternative power sources on a continent that could really use them?