Conductive copper wire (IMAGE) DOE/Pacific Northwest National Laboratory Caption Aditya Nittala measures copper wire conductivity using specialized equipment developed at Pacific Northwest National Laboratory. Credit (Photo by Andrea Starr | Pacific Northwest National Laboratory) Usage Restrictions No restrictions. License Public Domain 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.