One of two views of ducts near the Ship Canal boat yards (taken July 2014).

One of two views of ducts near the Ship Canal boat yards (taken July 2014).

I have always been fascinated by the forms that our modern building systems display. Exhaust, air, heating, and cooling systems are about as basic systems as one finds, and they usually have a place of prominence on rooftops, unadorned and standing like metallic animals and sculptures. Bernd and Hilla Becher called these forms typologies and made a career highlighting them in their master prints and publications. Check them out if you have never heard of them. They, more than any photographers in a long while, have influenced how I see the world and how I think about the ways we construct our physical environment to suit our economic system. (Click on each photograph to see a larger photo on a separate picture page.)