Karakul (hat) Karakul (hat) A karakul (or qaraqul) hat (Pashto/Persian: قراقلی) is a hat made from the fur of the Qaraqul breed of sheep. The triangular hat is part of the costume of the native people of Kabul which has been worn by many generations of men in Afghanistan. The fur from which it is made is referred to as "Astrakhan", "broadtail", "qaraqulcha", or "Persian lamb". Qaraqul means black fur in Turkic, similar types of hats are common among Turkic peoples. The hat is peaked, and folds flat when taken off of the wearer's head. The qaraqul hat is typically worn by
The purpose of a system is what it does be balanced by a more straightforwardly descriptive view. The term is used in many fields including biology and management. The purpose of a system is what it does The purpose of a system is what it does (POSIWID) is a systems thinking heuristic coined by Stafford Beer. Stafford Beer coined the term POSIWID and used it many times in public addresses. In his address to the University of Valladolid, Spain, in October 2001, he said "According to the cybernetician, the purpose of a system is what it does. This is a basic dictum. It stands for bald fact, which makes