8 flat circular disks stacked on top of each other. Each disk is smaller the closer it is to the top. Also, each disk has a sector missing. The amount that's missing is also dependent on how close it is to the top. So, the bottom disk will be a 180° semicircle and the largest disk (measured by radius). The top disk will there be a complete circle but also the smallest one (by radius). Looking from the top-down, each disk is rotated anti-clockwise relative to the one below it. Ver mais