instrument observation
21instrument — in•stru•ment [[t]ˈɪn strə mənt[/t]] n. 1) a mechanical tool or implement, esp. one used for delicate or precision work: surgical instruments[/ex] 2) mad a device for producing musical sounds 3) a means by which something is effected or done;… …
22pilot balloon observation — noun A method of winds aloft observation, temperature, and relative humidity of the upper that is, the determination of wind speeds and air and to automatically transmit that directions in the atmosphere above a station. This is done by reading… …
23To take an observation — Observation Ob ser*va tion, n. [L. observatio: cf. F. observation.] 1. The act or the faculty of observing or taking notice; the act of seeing, or of fixing the mind upon, anything. [1913 Webster] My observation, which very seldom lies. Shak.… …
24Quadrant (instrument) — Ptolemy using a quadrant A quadrant is an instrument that is used to measure angles up to 90°. It was originally proposed by Ptolemy as a better kind of astrolabe.[1] Several different variations of the instrument were later produced by medieval… …
25Quadrant (instrument) — Pour les articles homonymes, voir Quadrant. Le quadrant mobile d Augustin Stark (1815). Le quadrant est un ancien instrument de navigation qui servait à faire le point sur sa position en …
26Transit instrument — In astronomy, transit instruments are used for the precise observation of star positions. The instruments can be divided into three groups: Meridian instruments for observation of star transits in the exact direction of South or North: * Meridian …
27Lunar Crater Observation and Sensing Satellite — Caractéristiques Organisation …
28Octant (instrument) — Octant. This instrument, labelled Crichton London, Sold by J Berry, Aberdeen, appears to have an ebony frame with ivory scale, vernier and signature plate. The index arm and mirror supports are brass. Rather than use a sighting telescope, this… …
29Chronologie Des Télescopes, Observatoires Et La Technologie D'observation — Cette page traite de la chronologie des moyens d observations de l espace, sur Terre puis dans les airs (voir Chronologie des satellites artificiels et sondes spatiales pour une chronologie plus détaillée dans les airs). Voir aussi :… …
30Chronologie des telescopes, observatoires et la technologie d'observation — Chronologie des télescopes, observatoires et la technologie d observation Cette page traite de la chronologie des moyens d observations de l espace, sur Terre puis dans les airs (voir Chronologie des satellites artificiels et sondes spatiales… …
