That's the challenge Kinfolk magazine recently gave London-based photographer Aaron Tilley for its current Architecture issue. Tilley's work is often concerned with motion or the moment just before motion begins; his subjects include bread whose slices appear caught in mid-tumble or paper sheets that seem to be floating on a table's edge. For Kinfolk, however, the still-life photographer was asked to create the effect of a Rube Goldberg machine — a series of photos in which one action triggers another and another until the payoff in the final frame.