non directional
61Taxis — This article is about the behavioural response. For the vehicle, see Taxicab. For aircraft movement, see Taxiing. A taxis (plural taxes,  /ˈt …
62Chemical bond — A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electromagnetic force attraction between opposite charges, either between electrons and… …
63Navigational aid — A lighthouse is an easily recognized aid to navigation. A navigational aid (also known as aid to navigation, ATON, or navaid) is any sort of marker which aids the traveler in navigation; the term is most commonly used to refer to nautical or… …
64Medical ultrasonography — This article is about using ultrasound to image the human body. For imaging of animals in research, see Preclinical imaging. Sonography redirects here. For the tactile alphabet called sonography , see Night writing. Medical ultrasonography… …
65KNON — Infobox Radio station name = KNON city = Dallas, Texas area = Dallas Fort Worth branding = slogan = The Voice of the People airdate = August 6, 1983 frequency = 89.3 MHz format = Community, Variety power = erp = 55,000 watts haat = 259 meters… …
66Low frequency — or LF refers to Radio Frequencies (RF) in the range of 30 kHz ndash;300 kHz. In Europe, and parts of Northern Africa and of Asia, part of the LF spectrum is used for AM broadcast service. In the western hemisphere, its main use is for aircraft… …
67WCNS — Infobox Radio Station name = WCNS AM area = Latrobe, Pennsylvania / Pittsburgh branding = My Radio 1480 slogan = airdate = August 11,1956 (as WTRA) frequency = 1480 (kHz) format = Oldies, sports erp = 500 watts (non directional Daytime) 1000… …
68InterPlanetary Network — The InterPlanetary Network (IPN) is a group of spacecraft equipped with gamma ray burst (GRB) detectors. By timing the arrival of a burst at several spacecraft, its precise location can be found. The farther apart the detectors, or the greater… …
69Macrodevelopment — is a biological hypothesis that proposes over millions of years the biosphere has nonlinearly unfolded taxa from generic forms to specific forms, in a manner analogous to the way in which a biological embryo develops in the womb. The theory was… …
70KLAA (AM) — Infobox Radio station name = KLAA city = Orange, California area = slogan = branding = AM 830 frequency = 830 kHzHD Radio airdate = January 9, 1986 share = share as of = share source = format = News/talk/sports power = 50,000 watts day 20,000… …
