Some folks have come up with a urine-powered battery... That'd be cool for cars... Imagine that hoodlum's surprise when he finds out that peeing in your gas tank actually helped you out...
I don't have time to find the link now, I'll get it later. It's for little biochip medical thingies, slightly smaller than a car battery, but anywho...
I don't have time to find the link now, I'll get it later. It's for little biochip medical thingies, slightly smaller than a car battery, but anywho...