instrument observations

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• Observations and Measurements — (O M) is an International Standard [1] which defines a conceptual schema encoding for observations, and for features involved in sampling when making observations. While the O M standard was developed in the context of geographic information… …   Wikipedia

• Instrument méridien — ● Instrument méridien tout instrument conçu pour effectuer des observations exclusivement le long du méridien d un lieu …   Encyclopédie Universelle

• Observations and explorations of Venus — Venus in real color as it would appear to the naked eye. Observations of the planet Venus were first recorded by Babylonian astronomers around 1600 BC and have continued into the present.[dubious – …   Wikipedia

• Quadrant (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… …   Wikipedia

• Octant (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… …   Wikipedia

• String instrument — A string instrument (or stringed instrument) is a musical instrument that produces sound by means of vibrating strings. In the Hornbostel Sachs scheme of musical instrument classification, used in organology, they are called chordophones. The… …   Wikipedia

• Measuring instrument — Captain Nemo and Professor Aronnax contemplating measuring instruments in Twenty Thousand Leagues Under the Sea …   Wikipedia

• Bulgari (instrument) — Le bulgari ou boulgari (grec moderne : μπουλγαρί) est un instrument de musique à cordes pincées d origine turque, et rencontré notamment en Anatolie parmi les populations turcomanes implantées dans la région des monts Taurus, tout comme le… …   Wikipédia en Français

• Boussole (instrument de navigation) — Boussole Pour les articles homonymes, voir Boussole (homonymie). Une boussole est un instrument de navigation constitué d’une aiguille magnétisée qui s’aligne sur le champ magnétique de la Terre. Elle indique ainsi le nord magnétique, à ne pas… …   Wikipédia en Français

• SPICE (Space Planet Instrument C-matrix Events) — Pour les articles homonymes, voir Spice (homonymie). SPICE est un kit de développement de la NASA utilisé pour calculer les informations géométriques utiles pour planifier et analyser des observations faites par un engin spatial. Il est également …   Wikipédia en Français

• MESSENGER — This article is about the NASA space mission. For other uses, see Messenger. MESSENGER Artist s rendering of MESSENGER orbiting Mercury. Operator NASA / APL Major contractors APL …   Wikipedia