Did you know that gasoline was originally considered a waste byproduct of kerosene production? Seriously, people would take crude oil, refine the kerosene out of it, and dump the rest. Working along similar lines of harnessing what had heretofore been considered useless, researchers at Edinburgh Napier University have come up with a way to turn leftovers from whiskey distillation into a biofuel. Using the spent grains (or "graff") and liquid from the copper stills (called "pot ale"), they've been able to produce biobutanol -- a fuel that's 30 percent more efficient than ethanol and, importantly, compatible with gasoline-fired vehicles without the need for engine mods. We honestly had to check the calendar to make sure it wasn't the beginning of April, but the university says its next stop is taking this thing to market. More power to them.

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Whiskey byproducts turned into biofuel, scientists prove they have a sense of humor