GIVES YOU A NEW PERSPECTIVE ON "FILL-ER-UP!": (Newsday.com) Singapore scientists said they have invented a urine-activated credit-card sized battery that can be used in test kits. The government-funded Institute of Bioengineering and Nanotechnology said in a statement placed on its Web site that the device was the "perfect power source for cheap, disposable health care test-kits for diseases such as diabetes."

The battery works once urine is added on a chemical-ready filter paper that sets off the cathode which produces about 1.5 volts of electricity.