One of the many posters in the halls of the GHC that I pass by, this one was on the 8th floor, taken at 10 p.m. on Saturday.  While I usually don't look at these posters on the way to class, it is an interesting piece of media, chock full of data, graphs, and other images and explanations.  Many of these posters are on the walls and hallways on CMU campus, but many of us pass by the posters without reading them.  Some of them are advertisements for clubs and other activities.  Some, like these, display data and theories of the people here who have created them.  It displays the achievements of the people who created them, sharing with those interested the ideas of the people who go to CMU, while also piquing the interest of those who take the time to read them.