At+the+time+of+the+equinoxes
91physical science — physical scientist. 1. any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and astronomy. 2. these sciences collectively. [1835 45] * * * Introduction the systematic study of the inorganic world …
92Platonic year — noun time required for one complete cycle of the precession of the equinoxes, about 25,800 years • Syn: ↑great year • Hypernyms: ↑time period, ↑period of time, ↑period * * * Astron. a period of about 26,000 years, equal to the time required for a …
93Anaximander — 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… …
94Aurora (astronomy) — Aurora Borealis redirects here. For other uses, see Aurora Borealis (disambiguation). Aurora Australis redirects here. For the ship, see Aurora Australis (icebreaker). For the book, see Aurora Australis (book). Northern lights redirects here. For …
95Writing of Principia Mathematica — Isaac Newton composed Principia Mathematica during 1685 and 1686.Authoring Principia Newton s major work mdash; Principia Mathematica In the other letters written in 1685 and 1686, he asks Flamsteed for information about the orbits of the moons… …
962012 phenomenon — Part of a series on …
97Wicca — This article is about the duotheistic religion. For other uses, see Wicca (disambiguation). This pentacle, worn as a pendant, depicts a pentagram, or five pointed star, used as a symbol of Wicca by many adherents. Wicca (pronounced  …
98Dawn — is the beginning of morning twilight Dawn sky …
99Astronomy on Mars — Mosaic of two different Mars Global Surveyor Mars Orbiter Camera (MOC) exposures of Earth, the Moon, and Jupiter from 2003 …
100Astronomical chronology — Astronomical chronology, or astronomical dating, is a technical method of dating events or artifacts that are associated with astronomical phenomena. Written records of historical events that include descriptions of astronomical phenomena have… …
