meridian instrument
61Hipparchus — (Greek polytonic|Ἵππαρχος; ca. 190 BC ndash; ca. 120 BC) was a Greek astronomer, geographer, and mathematician of the Hellenistic period.Hipparchus was born in Nicaea (now Iznik, Turkey), and probably died on the island of Rhodes. He is known to… …
62Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …
63Zeit — Zeit, hier das aus astronomischen Beobachtungen gewonnene Maß für die Aufeinanderfolge von Ereignissen. Ortszeit ist ganz allgemein die Angabe einer richtig gehenden Uhr. Nicht an allen Orten der Erde herrscht im gleichen Moment dieselbe Zeit,… …
64Polhöhenbestimmung — Polhöhenbestimmung. Ein großes und wichtiges Kapitel der geodätischen und astronomischen Lehren bildet die Bestimmung der Polhöhe (s. Breite, geographische). Die geodätische Bestimmung der Polhöhe eines Ortes kann nur eine relative sein, d.h. sie …
65eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… …
66Lower transit — Transit Trans it, n. [L. transitus, from transire to go over: cf. F. transit. See {Transient}.] 1. The act of passing; passage through or over. [1913 Webster] In France you are now . . . in the transit from one form of government to another.… …
67Surveyor's transit — Transit Trans it, n. [L. transitus, from transire to go over: cf. F. transit. See {Transient}.] 1. The act of passing; passage through or over. [1913 Webster] In France you are now . . . in the transit from one form of government to another.… …
68surveyor's transit — Transit Trans it, n. [L. transitus, from transire to go over: cf. F. transit. See {Transient}.] 1. The act of passing; passage through or over. [1913 Webster] In France you are now . . . in the transit from one form of government to another.… …
69Transit — Trans it, n. [L. transitus, from transire to go over: cf. F. transit. See {Transient}.] 1. The act of passing; passage through or over. [1913 Webster] In France you are now . . . in the transit from one form of government to another. Burke. [1913 …
70Transit circle — Transit Trans it, n. [L. transitus, from transire to go over: cf. F. transit. See {Transient}.] 1. The act of passing; passage through or over. [1913 Webster] In France you are now . . . in the transit from one form of government to another.… …
