high-accuracy survey
21North American Datum — Fundamentalpunkt für das North American Datum von 1927 bei Meades Ranch in Kansas Das North American Datum (NAD) ist das gemeinsame Bezugssystem für die Landesvermessung der Staaten Nord und Zentralamerikas. Geschichtlich bedingt unterscheidet… …
22gravitation — gravitational, adj. gravitationally, adv. /grav i tay sheuhn/, n. 1. Physics. a. the force of attraction between any two masses. Cf. law of gravitation. b. an act or process caused by this force. 2. a sinking or falling …
23Dynamic positioning — Offshore Support Vessel Toisa Perseus with, in the background, the fifth generation deepwater drillship Discoverer Enterprise, over the Thunder Horse Oil Field. Both are equipped with DP systems. Dynamic positioning (DP) is a computer controlled… …
24Scale (map) — The scale of a map is defined as the ratio of a distance on the map to the corresponding distance on the ground. If the region of the map is small enough for the curvature of the Earth to be neglected, then the scale may be taken as a constant… …
25Norden bombsight — The Norden bombsight at the Computer History Museum in Mountain View, California. This example does not have the associated autopilot attached …
26RTLS implementing — Articleissues essay=August 2008 copyedit=May 2008Implementing a real time locating system into operational environment is the challenging task to prepare some standardized equipment for deployment and tailoring the applications to the special… …
27Multiple sequence alignment — A multiple sequence alignment (MSA) is a sequence alignment of three or more biological sequences, generally protein, DNA, or RNA. In many cases, the input set of query sequences are assumed to have an evolutionary relationship by which they… …
28Nuclear weapons and Israel — Israel Nuclear program start date mid to late 1950s[1] First nuclear weapon test Unknown; possible join …
29Polygraph — This article is about the forensic instrument. For the automatic signing instrument, see Autopen. For the dual pen device that produces a simultaneous copy of an original while it is written in cursive writing, see Polygraph (duplicating device) …
30State Plane Coordinate System — The State Plane Coordinate System (SPS or SPCS) is a set of 126 geographic zones or coordinate systems designed for specific regions of the United States. Each state contains one or more state plane zones, the boundaries of which usually follow… …
