Der Zyklus – Polar Coordinates 17 March 2012 • Blog Polar Coordinates by Der Zyklus from the album Biometry. 2004. Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on Bluesky (Opens in new window) Bluesky Click to share on Threads (Opens in new window) Threads Click to share on X (Opens in new window) X