Calorimetry Lab (IMAGE) DOE/Pacific Northwest National Laboratory Caption Calorimetry allows researchers to study how energy changes over time, giving insight into chemical reactions and processes. Credit Photo by Andrea Starr | Pacific Northwest National Laboratory Usage Restrictions None License Original 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.