Nanopowder To Liquid Releases Hydrogen (IMAGE) U.S. Army Research Laboratory Caption Army researcher Anthony J. Roberts adds one gram of aluminum nano powder to urine to release hydrogen during a chemical reaction. Researchers engineering the nano powder at the US Army Research Laboratory at Aberdeen Proving Ground, Maryland. Credit US Army photo by David McNally Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.