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Definition - SchoolNotes
Definition - SchoolNotes

... 94,454,000 miles from the Sun. Definition: the point in the orbit of a planet when it is farthest from the Sun – Although the distance from the Earth to the Sun changes as a result of its elliptical orbit, this does not affect the Earth’s climate- the Earth’s tilted axis has a much greater effect on ...
Outline of Lecture on Copernican Revolution: 1. Source of word
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... forward again would seem to demand constant attention from a god, who should more properly have better things to be attending to. Ptolemy’s epicycles derived the back and forth motion of the planets from circles turning on circles. • This motion might seem possible for a god to set going and then ha ...
The Legacy of Ancient Greece
The Legacy of Ancient Greece

... proof. His famous theorem for calculating the length of the hypotenuse of a rightangled triangle is well known. Although Greek women usually were not allowed to study science, Pythagoras did have some women among his students. Socrates, a little bit later, developed logical methods for deciding whet ...
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Volume 4 (Issue 3), March 2015
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Greek Philosophers walkaround
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Greek Philosophers
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Sun-Earth-Moon system

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ancient and classical greece
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Section Two: The Greek City-States
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Astronomy Assignment #1
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Ancient Greece: Study Guide - Mr. Custis` Social Studies Page
Ancient Greece: Study Guide - Mr. Custis` Social Studies Page

... º That decisions about the direction of a community (or in this case, City-State) need to be made by a consensus (agreement) among the people. That one man, or a few men, can not make a decision for the whole. - Structure of Athenian Democracy º citizens of Athens were: males, over age 18, both pare ...
Issue 122 - Aug 2014
Issue 122 - Aug 2014

... (yellow, 5,300K) main sequence star very similar to our Sun. This star orbits the primary at about 15 AU (1.3 arc seconds as seen from the Earth) with an orbital period ~34.5 years. The star system is estimated to be about 6.2 billion years old. The distances from Earth to Beta and Zeta Her are abou ...
PDF format - Princeton University Press
PDF format - Princeton University Press

... not lie so much in the primacy of water as in the attempt to search for causes within nature itself rather than in supernatural events. Anaximander offered a much more detailed picture of the world. He maintained that the earth was in the center of all things, suspended freely and without support, w ...
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Ancient Greek astronomy



Greek astronomy is astronomy written in the Greek language in classical antiquity. Greek astronomy is understood to include the ancient Greek, Hellenistic, Greco-Roman, and Late Antiquity eras. It is not limited geographically to Greece or to ethnic Greeks, as the Greek language had become the language of scholarship throughout the Hellenistic world following the conquests of Alexander. This phase of Greek astronomy is also known as Hellenistic astronomy, while the pre-Hellenistic phase is known as Classical Greek astronomy. During the Hellenistic and Roman periods, much of the Greek and non-Greek astronomers working in the Greek tradition studied at the Musaeum and the Library of Alexandria in Ptolemaic Egypt.The development of astronomy by the Greek and Hellenistic astronomers is considered by historians to be a major phase in the history of astronomy. Greek astronomy is characterized from the start by seeking a rational, physical explanation for celestial phenomena. Most of the constellations of the northern hemisphere derive from Greek astronomy, as are the names of many stars, asteroids, and planets. It was influenced by Egyptian and especially Babylonian astronomy; in turn, it influenced Indian, Arabic-Islamic and Western European astronomy.
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