Prof. Dunn worked with high school girls attending the Girls Building Awesome Machines (GBAM) camp here at Illinois last week to define tribo-corrosive wear using a system we can all enjoy: the Tootsie Pop! The last line of the classic commercial says that the world may never know “how many licks” it takes to get to the center, but that is because they hadn’t yet designed the experiments! Check out the commercial for inspiration at YouTube. And if you would like to read a peer-reviewed study of tribo-corrosive wear of candy shells – just click here.