Sen. Obama, who has taught courses in constitutional law at the University of Chicago, has regularly referred to himself as a constitutional law professor, most famously at a March 30, 2007, fundraiser when he said, I was a constitutional law professor, which means unlike the current president I actually respect the Constitution..
Hip roof. A hip roof, hip-roof or hipped roof, is a type of roof where all sides slope downwards to the walls, usually with a fairly gentle slope. Thus it is a house with no gables or other vertical sides to the roof. A square hip roof is shaped like a pyramid.
The roof of this tower is specifically called a saddle roof. A saddle roof is a roof form which follows a convex curve about one axis and a concave curve about the other. The hyperbolic paraboloid form has been used for roofs at various times since it is easily constructed from straight sections of lumber, steel, or other conventional materials.