![Granick group research image](https://www.pse.umass.edu/sites/default/files/styles/200x200/public/images/news/granickzheng.jpg?itok=MPDdekIV)
Research by Kaikai Zheng*, Shankar Ghosh* and Steve Granick* was recently published in PNAS. Studying translucent materials, researchers discover an additional energy transfer path - internal radiation, which presents exceptions of Fourier's law at the macroscale.