Spacecraft2 (Gestalten, 2009) pp.256–257
978-3-89955-233-1
Or is a Vortex-Shaped surface that reacts to sunlight. the polygonal segments of the surface react to ultraviolet light,mapping the position and intensity of solar rays.When in the shade, the segments of OR are translucent white. however, when hit by sunlight, they become coloured, flooding the space below with a variety of hues.
