At the Hall of Ideas in Midland, Michigan, there is a machine where you can take out a piece of paper coated with diazonium and coupling compounds, put your hand on it while exposing it to a special light (causing a chemical reaction), and process it. The first one I did yesterday. The second one I did a little over a month ago--notice how it fades from navy blue to a lime green over time. Midland, Michigan revolves around Dow Chemical Company and Dow Corning. There are many houses that have signs in the window that read: Home of a Chemic. Everyone loves chemistry here.
