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Topic: Geocentric theory

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	The Galileo Project \| Science \| Copernican System
		Aristotle's cosmology of a central Earth surrounded by concentric spherical shells carrying the planets and fixed stars was the basis of European thought from the 12th century CE onward.
		His theory gave a simple and elegant explanation of the retrograde motions of the planets (the annual motion of the Earth necessarily projected onto the motions of the planets in geocentric astronomy) and settled the order of the planets (which had been a convention in Ptolemy's work) definitively.
		The tide now ran in favor of the heliocentric theory, and from the middle of the seventeenth century there were few important astronomers who were not Copernicans.
	galileo.rice.edu /sci/theories/copernican_system.html (2158 words)

	Geocentric model - Definition, explanation
		The geocentric model assumes a spherical Earth; thus it is not the same as the older flat Earth model.
		The geocentric model held sway into the early modern age; from the late 16th century onward it was gradually replaced by the heliocentric model of Copernicus, Galileo and Kepler due to the simplicity and predictive accuracy of that newer model.
		The relation of the two pictures [geocentricity and heliocentricity] is reduced to a mere coordinate transformation and it is the main tenet of the Einstein theory that any two ways of looking at the world which are related to each other by a coordinate transformation are entirely equivalent from a physical point of view...
	www.calsky.com /lexikon/en/txt/g/ge/geocentric_model.php (879 words)

	Geocentric model
		In astronomy, the geocentric model (in Greek: geo = earth and kentron = center) of the universe is the theory that the Earth is at the center of the universe and the Sun and other celestial objects go around it.
		The geocentric model held sway into the early modern age; from the late 16th century onward it was gradually replaced by the heliocentric model of Copernicus, Galileo and Kepler.
		The geocentric system was still held for many years afterwards, as at the time the Copernican system did not offer better predictions than the geocentric system, and it posed problems for both natural philosophy and scripture.
	www.dejavu.org /cgi-bin/get.cgi?ver=93&url=http%3A%2F%2Farticles.gourt.com%2F%3Farticle%3Dgeocentric%26type%3Den (1874 words)

	GEOCENTRIC - Definition
		g['e]ocentrique.] (Astron.) (a) Having reference to the earth as center; in relation to or seen from the earth, -- usually opposed to heliocentric, as seen from the sun; as, the geocentric longitude or latitude of a planet.
		{Geocentric latitude} (of place) the angle included between the radius of the earth through the place and the plane of the equator, in distinction from geographic latitude.
		] Having, considering, or based on, the earth as center; as, the geocentric theory of the universe.
	www.hyperdictionary.com /dictionary/geocentric (107 words)

	THE PTOLEMAIC MODEL OF THE PLANETARY SYSTEM - THE GEOCENTRIC SYSTEM (Site not responding. Last check: 2007-10-20)
		Geocentric means that the earth is in the center
		In the geocentric system, the earth is statically located at the center and the rest of the planets revolve around it, including the sun, which was also considered a planet.
		The planet nearest to earth is the moon, which completes a single revolution about the earth in one month.
	muse.tau.ac.il /museum/galileo/geocentric.html (385 words)

	The Microanthropic Principle
		Copernicus was probably afraid to outright dismiss the theory that was officially accepted by the Church, of which Copernicus was a functionary.
		The only possible explanation within the geocentric theory was that there must be small circles called epicycles on the surfaces of the planetary spheres and that the planets revolved slowly around those circles while at the same time the spheres revolved around the Earth (Fig 1.).
		According to the geocentric theory, a planet (red disk) orbits around an epicycle, which is attached to the surface of a celestial sphere, which rotates around the Earth (blue disk).
	www.relisoft.com /Science/Physics/MicroAnt.html (566 words)

	Geocentric Theory: Spiritual - Theosophy Dictionary on Geocentric Theory
		Geocentric Theory A theory in which the earth is regarded as being at the center of the solar system, usually referring to the system of Claudius Ptolemy.
		However, since we are living on the earth, and our consciousness is functioning on the corresponding plane, there is considerable justification for the adoption of a geocentric theory; and this may have been done for exoteric purposes by those who were actually aware of the heliocentric theory.
		Geocentric Theory is one of the topics in focus at Global Oneness.
	www.experiencefestival.com /a/Geocentric_Theory/id/105457 (693 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal (Site not responding. Last check: 2007-10-20)
		In astronomy, the geocentric model of the universe is the theory that the Earth is at the center of the universe and the Sun and other objects go around it.
		A geocentric frame is useful for many everyday activities and most laboratory experiments, but is a less felicitous choice for solar-system mechanics and space travel.
		Astrologers, while they may not believe in geocentrism as a principle, still employ the geocentric model in their calculations.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=geocentric_model (2222 words)

	MSN Encarta - Romania
	encarta.msn.com /encyclopedia_761559516/Romania.html (1012 words)

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	BBC NEWS \| World \| Europe \| Country profiles \| Country profile: Romania
	news.bbc.co.uk /1/hi/world/europe/country_profiles/1057466.stm (887 words)

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	Romania News
	www.topix.net /world/romania (1122 words)

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	www.lonelyplanet.com /worldguide/destinations/europe/romania (190 words)

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	CIA - The World Factbook -- Romania (Site not responding. Last check: 2007-10-20)
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	Romania Maps - Perry-Castañeda Map Collection - UT Library Online
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	romania map and information page
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	Ethnologue report for Romania
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	lcweb2.loc.gov /frd/cs/rotoc.html (187 words)

	WTO \| Romania - Member information
	www.wto.org /english/thewto_e/countries_e/romania_e.htm (192 words)

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	Geocentric theory - Conservapedia
		By the 1800s, the spectacular successes of Newtonian theory and Maxwell's equations for electromagnetism had convinced everyone that the Sun is a preferred frame of reference, and that the laws of physics must be applied in that frame.
		The geocentric theory was considered to be profoundly mistaken, and the heliocentric theory correct.
		Since the advent of relativity theory in the early 1900s, the laws of physics have been written in covariant equations, meaning that they are equally valid in any frame.
	www.conservapedia.com /Geocentric_theory (331 words)

	Talk:Geocentric theory - Conservapedia
		The use of a Geocentric or Heliocentric frame of reference is a matter of choice, and not a matter of scientific proof.
		One could probably derive it nowadays from the heliocentric theory by changing the system of coordinates (since the system attached to the Earth is not inertial, one would have to use Einstein's general relativity to do that correctly).
		You are dishonestly conflating the term Geocentric Theory, which historically refers to the theory stating that the Earth is the center of the universe, with a mathematical convenience.
	www.conservapedia.com /Talk:Geocentric_theory (4430 words)

	Geocentric (Site not responding. Last check: 2007-10-20)
		The figure on the right shows the geocentric model, while the figure on the left is an enlargement of the Sun, Venus, Mercury, Moon orbits.
		The Roman Catholic church accepted the Ptolemaic theory, because biblical passages suggested the sun was in constant motion while Earth remained in one place.
		Since the Church was in control during this time period, anyone who did not believe in the Ptolemaic theory would be punished, possibly with house arrest.
	www.emporia.edu /earthsci/amber/students/denning/geo.htm (305 words)

	Timeline
		Before Aristrachus made this theory the sun and all the other planets were thought to revolve around the Earth.
		His theory was believed for over 1,400 years, until Copernicus proved his theory wrong.
		Kepler would later use Brahe’s recorded observations in 1609 to describe the orbits of the planets around the Sun, which helped prove the geocentric theory was not correct.
	library.thinkquest.org /J0112188/timeline.htm (1074 words)

	Newtonian Cosmology
		Tycho's measurements were used to show that there was no detectable parallax with the naked eye, in support of the geocentric theory.
		Kepler (1600's) a student of Tycho who used Brahe's database to formulate the Laws of Planetary Motion which corrects the problems of epicycles in the heliocentric theory by using ellipses instead of circles for orbits of the planets.
		His theory of motion flows from his understanding of matter as constituted of four elements: air, earth, fire, and water.
	zebu.uoregon.edu /~js/cosmo/lectures/lec03.html (1795 words)

	Geocentric Theory \| World of Physics
		The geocentric theory of the universe describes the universe with Earth at its center and puts the other celestial bodies in circular orbits around it.
		Though there were in fact several geocentric theories, when historians or philosophers write about geocentrism, it is usually Ptolemy's system they infer.
		Nicolas Copernicus supplanted the geocentric theory with a heliocentric model, which was much like one proposed by Aristarchus of Samos (310-c.230
	www.bookrags.com /research/geocentric-theory-wop (442 words)

	Horoscopes
		The seemingly destructive blow was proof that a geocentric theory was incorrect.
		As mentioned earlier its roots are in the geocentric theory.
		Because this theory is false it, in my opinion, undermines the entire basis of the belief system.
	www.free-dream-interpretation.net /land.htm (1553 words)

	Quackgrass Press: Seeing Red: Intrinsic redshifts, stable universe
		Narlikar's theory also abolishes curved space, that trademark of relativity, cliche of science fiction, and nemesis of all who attempt to visualize it.
		Narlikar's variable mass theory is certainly not the final word on physics, but it does pass a number of very fundamental tests, and it throws open the door to a whole new range of possibilities.
		The variable mass theory calculates the Hubble constant from a single datum: the age of the oldest stars in our Milky Way, which are between 13 and 17 billion years old.
	www.quackgrass.com /roots/arp.html (2720 words)

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