Kace was smiling and was glad the professor was doing well. Plus she was married he was happy for his head of house. He wondered if Fuller were collobarating or something. They were both teaching about photographs. But he heard the question and he raised his hand and replied, "Professor I know for photographs you need to use chemicals to develop it and not expose your film or else it will be ruined." Is that something she was looking for. I mean it was a different way to develop photos.