Search results
Results from the WOW.Com Content Network
A notable example is a poem from the 14th-century Ibn Yamin, which categorizes knowledge and ignorance into four states: [21] [22] Known knowns: One who knows and knows that they know. Someone capable of transcending limits ("Their horse of wisdom will reach the skies"). Unknown knowns: One who knows, but doesn’t know that they know. Someone ...
Popular discussion of unknowability grew with the use of the phrase There are unknown unknowns by United States Secretary of Defense Donald Rumsfeld at a news briefing on February 12, 2002. In addition to unknown unknowns there are known unknowns and unknown knowns. These category labels appeared in discussion of identification of chemical ...
A fixed model considers the "known unknowns", but ignores the "unknown unknowns", made famous by a statement of Donald Rumsfeld. [19] The term "unknown unknowns" appeared in a 1982 New Yorker article on the aerospace industry, which cites the example of metal fatigue, the cause of crashes in Comet airliners in the 1950s. [20]
Intelligence: Knowns and Unknowns is a report about scientific findings on human intelligence, issued in 1995 by a task force created by the Board of Scientific Affairs of the American Psychological Association (APA) following the publication of The Bell Curve and the scholarly debate that followed it.
The Unknown Known (also known as The Unknown Known: The Life and Times of Donald Rumsfeld) is a 2013 American documentary film about the political career of former U.S. Secretary of Defense and congressman Donald Rumsfeld, directed by Academy Award winning documentarian and filmmaker Errol Morris.
Identifying unidentified flying objects (UFOs) is a difficult task due to the normally poor quality of the evidence provided by those who report sighting the unknown object. [1] Observations and subsequent reporting are often made by those untrained in astronomy, atmospheric phenomena, aeronautics, physics, and perception. [2]
Some Latin legal writers used the name Numerius Negidius as a John Doe placeholder name; this name was chosen in part because it shares its initials with the Latin phrases (often abbreviated in manuscripts to NN) nomen nescio, "I don't know the name"; nomen nominandum, "name to be named" (used when the name of an appointee was as yet unknown ...
Known and Unknown: A Memoir is an autobiographical book by Donald Rumsfeld published through Penguin Group USA in February 2011. It covers a variety of his experiences such as serving as a member of the United States House of Representatives in the late 60s, as a member of the Nixon and Ford administrations during the Watergate scandal and Vietnam War, and as George W. Bush's Secretary of ...