The melding of art and science can be seen in the work of Dan Sandin, a former physics student turned kinetic sculpture and intermedia specialist who became interested in audio synthesizers after working on slides for light shows. Around 1968, he decided that he wanted to make a visual counterpart to the Moog audio synthesizer and taught himself the fundamentals of electronic design. He completed his patch-programmable, real-time analog image processor in 1973, capable not only of manipulating and mixing signals from televisions and video tape recorders but also “external signals from such devices as biological and environmental sensors” As Sandin explained, “Because the image processor is a generalized machine and because it is designed to interface with other machines”–including the human body–“essentially, it can be used to explore an indefinite range of events in the universe.”