excess-noise spectrum
91Video camera tube — In older video cameras, before the mid to late 1980s, a video camera tube or pickup tube was used instead of a charge coupled device (CCD) for converting an optical image into an electrical signal. Several types were in use from the 1930s to the… …
92Valve audio amplifier — A valve (UK) audio amplifier or vacuum tube (US) audio amplifier is a valve amplifier used for sound recording, reinforcement, or reproduction. Until the invention of solid state devices such as the transistor, all electronic amplification was… …
93Antique radio — DIORA AGA RSZ 50 ca.1947 from Poland An antique radio is a radio receiving set that is collectible because of its age and rarity. Although collectors may differ on the cutoff dates, most would use 50 years old, or the pre World War II Era, for… …
94forestry — /fawr euh stree, for /, n. 1. the science of planting and taking care of trees and forests. 2. the process of establishing and managing forests; forestation. 3. forestland. [1685 95; < MF foresterie. See FOREST, RY] * * * Management of forested… …
95humour — /hyooh meuhr/, n., v.t., Chiefly Brit. humor. Usage. See or1. * * * I (Latin; fluid ) In early Western physiological theory, one of the four body fluids thought to determine a person s temperament and features. As hypothesized by Galen, the four… …
96International Space Station maintenance — Since construction started, the International Space Station (ISS) programme has had to deal with several maintenance issues, unexpected problems and failures[citation needed]. These incidents have affected the assembly timeline, led to periods of …
97NMR spectroscopy of stereoisomers — NMR spectroscopy techniques can determine the absolute configuration of stereoisomers such as cis or trans alkenes, R or S enantiomers, and R,R or R,S diastereomers.[1][2] In a mixture of enantiomers, these methods can help quantify the optical… …
98Rave — For other uses, see Rave (disambiguation). For the genre rave music , see rave music and breakbeat hardcore. A large rave event, held in a warehouse sized venue, with elaborate lighting and a large sound system Rave, rave dance, and rave party… …
99Equivalence point — or stoichiometric point occurs during a chemical titration when the amount of titrant added is equivalent, or equal, to the amount of analyte present in the sample. In some cases there are multiple equivalence points which are multiples of the… …
100Zoo TV Tour — World tour by U2 …
