Z Firing (IMAGE) DOE/Sandia National Laboratories Caption Sandia's Z machine is the most powerful deliverer of bursts of electrical energy in the world. Credit Randy Montoya, photographer; courtesy, Sandia National Laboratories Usage Restrictions media 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.