Spiral_Wall was designed by P&A LAB based in Taiwan. P&A LAB aims to  explore possibilities of interactive installations and digital form in architecture through programming. The concept is to use cell membrane structure as a subject body, transparent but clearly defined to instigate an atmosphere through light. Installation is made out of 12 single elements, each one a tube made of silk strings. There are 24 servo motors and 1 Arduino board to control 12 individual elements, all controlled by Processing. By pressing the keyboard (or clicking the mouse), the user can control the servo motors rotating clockwise or counter-clockwise to make it tense or loose thus creating an atmosphere with ever changing Moire like effects.