trans peopleg at and trying to create positive images of them. >> tell me about how this idea came to >> really interesting taking up this phenomenon and using it as a way to think about how we look and how we see and how we perceive the world. i think this sort of very simple gesture of putting the lens in the room and having an image, and backwards and upside down makes us reconsider everything about how we perceive the world. we have a sense of wonder about something that we just saw outside and took for granted. it then re-see it and becomes -- it opens a set of questions. >> explain how the camera obscura works. >> it is a naturally occurring phenomenon. through a small opening in a dark space, light moves in and carries it into the outside world. it is a natural phenomenon. that is because light moves in a straight line. this guy ends up on the floor and the floor and up on the ceiling. it is actually a very simple phenomenon that has been observed since prehistory. what i am interested in is how that phenomenon can be employed right now in a contemporary setting. of -- it gives