follow-up calibration
91Amelia Earhart — Earhart redirects here. For the asteroid, see 3895 Earhart. Amelia Earhart Amelia Earhart …
92Marshall Space Flight Center — George C. Marshall Space Flight Center Aerial view of the test area at MSFC …
93Medical 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… …
94Rongorongo — Infobox Writing system name = Rongorongo type = Undeciphered time = Time of creation unknown, most tablets lost or destroyed in the 1860s languages = Assumed to be Rapanui sample = Rongorongo Qr3 7 color.jpg iso15924 = RoroRongorongo… …
95Cepheid variable — This article is about a class of pulsating stars. For the similarly named constellation, see Cepheus (constellation). Cepheids redirects here. For the fictional species, see Blind Alley . A Cepheid (  /ˈs …
96Emergency Alert System — The Emergency Alert System (EAS) is a national warning system in the U.S. put into place in 1994, superseding the Emergency Broadcast System (EBS) and the CONELRAD System and is jointly coordinated by the Federal Communications Commission (FCC),… …
97Validity (statistics) — In psychology, validity has two distinct fields of application. The first involves test validity, a concept that has evolved with the field of psychometrics but which textbooks still commonly gloss over in explaining that it is the degree to… …
98Dike (construction) — A dike (or dyke), levee, levée, embankment, floodbank or stopbank is a natural or artificial slope or wall, usually earthen and often parallels the course of a river. [ Citation | title=Levees and Other Raised Ground | author=Henry Petroski |… …
99Niandra Lades and Usually Just a T-Shirt — Studio album by John Frusciante …
100Absolute threshold of hearing — The absolute threshold of hearing (ATH) is the minimum sound level of a pure tone that an average ear with normal hearing can hear with no other sound present. The absolute threshold relates to the sound that can just be heard by the… …
