Researchers examining paint (IMAGE) Cell Press Caption This photo shows Professor Xiulin Ruan (left) and PhD student Joseph People (right) studying the Purdue radiative cooling paint and the commercial paint samples placed side by side. Credit Jared Pike of the School of Mechanical Engineering at Purdue University Usage Restrictions Credit Required 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.