Air traffic control (ATC) is a service provided by ground-based controllers who direct aircraft on the ground and through controlled airspace, and can provide advisory services to aircraft in non-controlled airspace.
While the genre of some works of literature can be debated, Macbeth written by William Shakespeare seems to fit into a perfect mold. Aristotleâs definition of a tragedy, combining seven elements that he believes make the genre of a work a tragedy, is that mold. Displaying all seven aspects, Macbeth fits the definition precisely. Key elements in the play substantiate the fact that Macbeth is a serious story, the first elements of Aristotleâs definition.
The ancient Greek belief in five basic elements, these being earth (Î³á¿ ge), water (á½Î´ÏÏ hudor), air (á¼Î®Ï aer), fire (Ïá¿¦Ï pur) and aether (Î±á¼°Î¸Î®Ï aither), dates from pre-Socratic times and persisted throughout the Middle Ages and into the Renaissance, deeply influencing European thought and culture.