NF
NF may refer to:
Science and medical
Companies and organizations
Geography
Engineering
Other uses
National Fantasy Fan Federation
The National Fantasy Fan Federation (N3F or NFFF) is one of the world's oldest science fiction fandom organizations. The organization was founded in April 1941 when all science fiction, horror, and fantasy literature was lumped into one category called "fantasy." The group actively encourages the development of writers, editors, and artists.
History
The group was founded by a loose cadre of members of Boston, Massachusetts-based Stranger Club who were inspired by the Damon Knight article Unite - or Fie! published in that month's Fanfare. Knight said the withering of "New Fandom" should be counteracted by the creation of a general-purpose organization to link avid readers of all forms of speculative fiction. The club still exists today and continues to reach many of its members by regular mail, though it now has a growing online presence with its Web site and related mailing lists via the Internet.
Organization and Services
The N3F has a president, treasurer, secretary and directorate which handles the day-to-day operation of the club's business. The president and directorate are elected by the membership.
Tetrafluorohydrazine
Tetrafluorohydrazine or dinitrogen tetrafluoride, N2F4, is a colourless, reactive inorganic gas. It is a fluorinated analog of hydrazine. It is a highly hazardous chemical. In the presence of organic materials, it reacts explosively.
Tetrafluorohydrazine is manufactured from nitrogen trifluoride using an iron catalyst or iron(II) fluoride. It is used in some chemical syntheses, as a precursor or a catalyst.
Tetrafluorohydrazine was used as a high-energy liquid oxidizer in some never-flown rocket fuel formulas. In 1959 it was considered new for this application.
References
N. F. S. Grundtvig
Nikolaj Frederik Severin Grundtvig (8 September 1783 – 2 September 1872; Danish pronunciation: [ˈneɡolaɪ̯ˀ ˈfʁæˀðʁæɡ ˈsɛʋəʁin ˈɡʁɔndʋi]), most often referred to as N. F. S. Grundtvig or just Grundtvig, was a Danish pastor, author, poet, philosopher, historian, teacher and politician. He was one of the most influential people in Danish history, as his philosophy gave rise to a new form of nationalism in the last half of the 19th century. It was steeped in the national literature and supported by deep spirituality.
Grundtvig holds a unique position in the cultural history of his country. Grundtvig and his followers are credited with being very influential in the formulation of modern Danish national consciousness. He was active during the Danish Golden Age and has been styled with Thomas Carlyle and might also be compared to Ralph Waldo Emerson. But his style of writing and fields of reference are not immediately accessible to a foreigner, thus his international importance does not match that of his contemporaries Hans Christian Andersen and Søren Kierkegaard.
Podcasts:
