geodetic instrument
81Chain (unit) — 1 chain = SI units 20.11680 m 2,011.680 cm US customary / Imperial units 22.00000 yd 66.00000 ft A chain is a unit of length; it measures 66 feet or 22 yards or 100 links …
82KFA 1000 — Die KFA 1000 ist eine in der Sowjetunion um 1955 adaptierte, sehr langbrennweitige Satellitenkamera (Brennweite 1 Meter). Sie dürfte ursprünglich in der militärischen Fotogrammetrie und für Spezialaufgaben (hohe Bildflüge?) gedient haben und… …
83Suzaku (satellite) — Suzaku L observatoire à rayons X Suzaku Caractéristiques Organisation Agence d exploration aéro …
84Heliostat — He li*o*stat, n. [Helio + Gr. ? placed, standing, fr. ? to place, stand: cf. F. h[ e]liostate.] An instrument consisting of a mirror moved by clockwork, by which a sunbeam is made apparently stationary, by being steadily directed to one spot… …
85Arkansas — This article is about the U.S. state of Arkansas. For the river, see Arkansas River. For other uses, see Arkansas (disambiguation). State of Arkansas …
86West Virginia — This article is about the U.S. state of West Virginia. For other uses, see West Virginia (disambiguation). State of West Virginia …
87Triangulation — In trigonometry and geometry, triangulation is the process of determining the location of a point by measuring angles to it from known points at either end of a fixed baseline, rather than measuring distances to the point directly. The point can… …
88Spherical Earth — Medieval artistic representation of a spherical Earth with compartments representing earth, air, and water (c. 1400). The concept of a spherical Earth dates back to ancient Greek philosophy from around the 6th century BC …
89National Weather Service — NWS Agency overview Formed February 9, 1870 Jurisdiction …
90Mount Diablo — West face of Mount Diablo and Hwy 24 Elevation …
