These are computer models and rapid-prototyped reproductions of mechanical movements inspired by Henry T. Brown's 1868 book Five Hundred and Seven Mechanical Movements. rapid-prototyped reproductions (click for full image) I think mechanical devices such as these are appealing on an emotional level because they are alive (where "life" is elegant movement that follows rules), but they are a form of life that we can understand in its entirety. Mechanical Movement No. 27Mechanical Movement No. 36