Art and technology are defined separately, but shown to overlap in various circumstances. When developing things which extend our power to sense, feel, or do things, beyond our immediate selves, overlap occurs between art and technology. Art transforms illusion into meaningful experiences and is thus a useful technology. Otto Piene, director of the Center for Advanced Visual Study at MIT, is cited as believing that the interaction of art and technology are the concern of modern artists wishing to make statements about the twentieth century, using media of the twentieth century. Piene's artists' program is outlined. Technology is described as often being required to produce objects with artistic qualities in the service of art, and artisans have often been at the cutting edge of technology. Examples are given of these cases. Technology has long been a concern of art. The Renaissance paintings are cited, where visual effects varied greatly, depending on pigment choices and application styles. Art can serve as a means to understand the history of technology. An example is given, using majolica ceramics. Art and technology can complement each other. Several examples are given. Materials scientists' work is seen as a complex interplay of art and technology.