one concept common to many of foam's explorations of growth and transformation in natural/artificial worlds has been that of "responsive environments". in this way, the capacity for change in technologically enhanced spaces is gauged by observing the playful explorations between physical and digital surroundings, and the accompanying fluid dialogues between people, materials and media. as a result, a strong contrast often emerges between the aesthetics of the designed and the beauty of the grown. such explorations extend across several media, e.g. computer generated images and sounds across and within buildings and other forms of architecture as well as self-grown biological environments. accordingly, foam's creation of public media art and its study of responsive environments have required the development of an open-ended responsive media system, which enables sensor data analysis and interpretation and further perceptual modeling. representative examples include the following: