The argument in this chapter and the next is that the aesthetic field during the modern period is defined by an elastic and differential regime of motion. These two chapters marshal support for this thesis by looking closely at major arts of the modern age: steel, photographic image, and the novel in Chapter 13, and meter, the action arts, and molecular arts in the next chapter. Although empirically quite different and distributed over hundreds of years, each follows a similar kinetic pattern or regime. This chapter looks at the way in which steel architecture, photography, and the novel move elastically by expanding and contracting and open series of frames (steel frames, photographic frames, and print frames).