Interface I investigates the relationship of structure and behaviour. A kinetic machinery that implements a complex dynamic system that evolves movements and patterns by the interactions of its parts. The system is a compound of motors, strings and elastic bands arranged in a horizontal mesh of intersecting lines. The mesh couples each element to its surrounding elements in order to achieve some kind of togetherness. A series of geiger-müller-tubes registers the background radiation (radon and cosmic ray showers) of the earth in order to stimulate the mechanical system with independent random impulses outside of the computational realm. Randomness acts as a catalyst for the system in order to enable change and it’s dynamics.