celestial map
51meridian — Synonyms and related words: Antarctic Zone, Arctic Circle, Arctic Zone, Frigid Zones, Lambert conformal projection, Mercator projection, Miller projection, Torrid Zone, Tropic of Cancer, Tropic of Capricorn, Variable Zones, acmatic, acme,… …
52Astrology — Not to be confused with Astronomy. ‹ The template below (Ast box) is being considered for merging. See templates for discussion to help reach a consensus. › …
53Precession (astronomy) — In astronomy, precession refers to the movement of the rotational axis of a body, such as a planet, with respect to inertial space. In particular, it refers to the precession of the Earth s rotational axis, also called the precession of the… …
54Anaximander — otheruses4|the Pre Socratic philosopherInfobox Philosopher region = Western Philosophy era = Pre Socratic philosophy color = #B0C4DE image caption = Detail of Raphael s painting The School of Athens , 1510–1511. This could be a representation of… …
55Moon — This article is about Earth s Moon. For moons in general, see Natural satellite. For other uses, see Moon (disambiguation) …
56Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
57navigation — navigational, adj. /nav i gay sheuhn/, n. 1. the act or process of navigating. 2. the art or science of plotting, ascertaining, or directing the course of a ship, aircraft, or guided missile. [1520 30; < L navigation (s. of navigatio) a voyage.… …
58Zhang Heng — For other uses, see Zhang Heng (disambiguation). This is a Chinese name; the family name is Zhang. Zhang Heng (張衡) Born …
59Science in medieval Islam — In the history of science, Islamic science refers to the science developed under the Islamic civilization between the 8th and 16th centuries, during what is known as the Islamic Golden Age. [cite journal|first=A. I.|last=Sabra|authorlink=A. I.… …
60Su Song — 蘇頌 (Sū Sòng) Born 1020 near Quanzhou Died 1101 (aged 80–81) Nationality Chinese …
