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| | Geocentric model - Wikipedia, the free encyclopedia |
 | | The geocentric model (in Greek: geo = earth and centron = centre) of the universe is a paradigm which places the Earth at its center. | | | 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 geocentric model assumes a spherical Earth; thus it is not the same as the older flat Earth model. |
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http://en.wikipedia.org/wiki/Geocentric_model
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| | Geocentric model - Wikipedia, the free encyclopedia |
| | The geocentric model (in Greek: geo = earth and centron = centre) of the universe is a paradigm which places the Earth at its center. | | | However, some religious fundamentalists still interpret Scripture as indicating that the Earth is the physical centre of the universe- known as modern geocentrism. | | | At this time, geocentrism is rejected in scientific and popular opinion; and it is believed that the Sun is at the centre of the solar system, but not the universe (see Heliocentrism), so a better term for the modern view is geokineticism (i.e. |
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http://en.wikipedia.org/wiki/Geocentric_model
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| | Geocentrism and Creation |
| | Nearly all Bible-believing heliocentrists think that the Bible is neither geocentric nor heliocentric, but Bouw holds their opinions on the matter in low regard. | | | In short, the Bible is neither geocentric nor heliocentric. | | | Therefore, modern geocentrists teach that the heliocentric model is wrong because ungodly men originated it, but fail to apply the same standard to their favored geocentric theory. |
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http://www.answersingenesis.org/Home/Area/magazines/tj/docs/TJv15n2Geocentrism.asp
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| | Solar System Models |
| | Unfortunately, the geocentric model was accepted as doctrine and, therefore, was not subjected to the scientific method for hundreds of years. | | | In the first book of the Almagest, Ptolemy describes his geocentric system and gives various arguments to prove that, in its position at the center of the universe, the Earth must be immovable. | | | Ptolemy (200 A.D.) was an ancient astronomer, geographer, and mathematician who took the geocentric theory of the solar system and gave it a mathematical foundation (called the "Ptolemaic system"). |
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http://zebu.uoregon.edu/~js/ast221/lectures/lec06.html
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| | The Earth Is Not Moving |
| | 3) Some would like to think this challenge to the Copernican Model is being made by a handful of Bible Fundamentalists who stupidly think they can defeat Copernicanism by simply quoting the Bibles geocentric and creationist Scriptures | | | Grammatically and Semantically the Holy Bible is Wholly Geocentric | | | Genesis I:1-5: Creationist Stonewalling Of Bible Geocentricity: Decision Time Approaches... |
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http://www.fixedearth.com
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| | MASONIC SHORT TALKS |
| | Arguments against the geocentric model were so forceful that he came under fire from the Catholic Church and was forced to give a public denial of the heliocentric/Copernican system, and was placed under house arrest for the last 10 years of his life. | | | The geocentric model placed earth at the center of the universe. | | | The geocentric and heliocentric theories were those two. |
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http://users.1st.net/fischer/SHORT65.HTM
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| | The Galileo Affair |
| | But the geocentric theory, endorsed by Aristotle and given mathematical plausibility by Ptolemy, was the prevailing model until Copernicus. | | | It was given additional credibility by certain passages of Scripture, which seemed to affirm the mobility of sun and the fixity of the earth. |
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http://www.catholic.net/RCC/Periodicals/Issues/GalileoAffair.html
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| | Solar System Models |
| | Unfortunately, the geocentric model was accepted as doctrine and, therefore, was not subjected to the scientific method for hundreds of years. | | | Notice that planets with phases are possible in a geocentric model. | | | But, the Roman Catholic Church absorbs Aristotle's scientific methods and Ptolemy's model into its own doctrine. |
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http://zebu.uoregon.edu/~js/ast221/lectures/lec06.html
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| | Stellar Parallax and Aberration as Proofs of the Heliocentric Model |
| | Note the second diagram with “never shown inscribed” – many religious fundementalists use this to explain and disproof currect ideas of parallax in order to push the modern geocentric model. | | | The widely accepted geocentric model held the Earth at the centre with the sun and planets in orbit around it, and the opposing heliocentric model held the sun at the centre. | | | These facts constitute the proof of the model, which on its own stands tall due to its greater simplicity over the geocentric model, the greater ease of calculations, and the logical assumption that the biggest object in our solar system (by far) would be the centre and controlling force. |
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http://www.astro.utoronto.ca/~bclarke/AST199M/parallax.htm
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| | Nasaexplores |
| | Heliocentric means “Sun-centered,” while geocentric means “Earth-centered.” | | | Have students write a short biography of one of the key scientists who brought the heliocentric model to the forefront, and those who fought for the geocentric model. | | | While this model is accepted today, in ancient times, people were much more supportive of the geocentric model. |
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http://www.nasaexplores.com/show_58_teacher_sh.php?id=040914145957
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| | Babylonian Planetary Theory and the Heliocentric Concept |
| | It is true (as far as is known) that the Babylonians did not use trignometrical methods in their astronomy, but then again neither did they confine their treatment of the planets to mean circular motion, or use auxiliary devices to reinforce unsupportable geocentric premises either. | | | After all, it includes the time of Aristarchus of Samos, and moreover, it is also generally accepted that single, modified period relations of Babylonian origin provide the underlying bases for the later and diverse planetary planetary models proposed by Ptolemy, Al-Bitruji and Copernicus. | | | And indeed why not; with the heliocentric concept deduced and firmly in place all manner of details could be investigated and over time amply refined. |
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http://www.spirasolaris.ca/sbb2c.html
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| | Nicolaus Copernicus |
| | Disturbed by the failure of Ptolemy's geocentric model of the universe to follow Aristotle's requirement for the uniform circular motion of all celestial bodies and determined to eliminate Ptolemy's equant, an imaginary point around which the bodies seemed to follow that requirement, Copernicus decided that he could achieve his goal only through a heliocentric model. | | | Although the Copernican model maintained epicycles moving along the deferrent, which explained retrograde motion in the Ptolemaic model, Copernicus correctly explained that the retrograde motion of the planets was only apparent not real, and its appearance was due to the fact that the observers were not at rest in the center. | | | Copernicus arrived at the heliocentric theory by a careful analysis of planetary models — and as far as is known, he was the only person of his age to do so — and if he chose to adopt it, he did so on the basis of an equally careful analysis. |
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http://plato.stanford.edu/entries/copernicus
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| | Geocentric |
| | 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 stars appeared to move around the Earth daily, further convincing them of this theory, which became known as geocentric or Earth-centered. | | | 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. |
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http://www.emporia.edu/earthsci/amber/students/denning/geo.htm
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| | NCRMS Earth Science Ms. Ackermann |
| | The geocentric model of the solar system was developed by Ptolemy and was the accepted model for about two thousand years until it was challenged by Copernicus in the 1500s. | | | However, the retrograde motion of some of the planets in our night sky is awkward and complicated to explain using the geocentric model. | | | Write an essay in which you try to convince someone of the opposite opinion that your model is the correct one. |
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http://www.millerplace.k12.ny.us/Ms.Ackermann.htm
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| | chap2notes.html |
| | Now that people were reading about a heliocentric universe and questioning the church's geocentric views, the church got angry. | | | - The church rejected Copernicus' model, but they didn't ban his work or otherwise harass him. | | | Proposed models of the Solar System had to explain and be able to predict all of the above observations of the heavens. |
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http://www.chara.gsu.edu/~osterman/astr1010/chapter2/chap2notes.html
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| | Models of the solar system |
| | Thus, a heliocentric universe was inferred from the fact that the geocentric system was becoming unwieldy and a heliocentric model provided a simpler explanation. | | | But all this was observation unsupported by any model of how such things could be. | | | This is exactly equivalent, on the basis of ground-based observation, to a heliocentric model. |
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http://www.bluffton.edu/~bergerd/NSC_111/science3.html
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| | ASTR 100 Lecture 6 (10 Sep 2003) |
| | Moreover, the geocentric picture became an article of faith for the Church, creating an intellectual climate in which people were not free to consider alternative models. | | | Galileo was warned by the Church in 1616 that he should not continue to promulgate the heliocentric model. | | | After the election of Pope Urban VIII in 1623, Galileo was again permitted to discuss the model in public as long as he treated it as a mathematical contrivance and not the true nature of the Universe. |
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http://www.astro.uiuc.edu/classes/archive/astr100/f03_lect1/lecture06_summary.html
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| | Monday, November 18, 2002 |
| | When I asked them what evidence they had, one student mentioned that the sun rises and sets, to which I said that could be explained by the geocentric model. | | | All students got through the activity for the geocentric model, with at least two students in each group getting an opportunity to be the Earth. | | | The next stage of the lesson was to talk about the three main puzzles of the universe that each model had to describe, which included retrograde motion, lack of parallax of the stars as seen from Earth, and the varying speeds of a planets during their orbits. |
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http://www.geocities.com/mothman999/ref1118.html
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| | Daniel Sevo's Astronomy - Solar System |
| | The 1540's though wasn't a very good time for scientist to propose theories that contradicted those of the Church at the time (Geocentric view). | | | (Geocentric means the Earth was thought to be the center of the Universe as opposed to the Heliocentric model where the Sun is placed at the center.) Another philosopher at the time (~260BC)presented a Heliocentric model. | | | Not much happened until the early 1540's when Nikolai Copernicus presented the revised Heliocentric model. |
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http://hem.passagen.se/des/astronomy/astro_solarsystem.htm
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| | Solar System Cosmology |
| | In the heliocentric model the 6 angles that just happened to always be the same in the geocentric model are all a reflection of the motion of the Earth around the Sun. | | | Tycho Brahe favored a geocentric model because he could not see the | | | This is a considerable simplification of the model. |
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http://www.astro.ucla.edu/%7Ewright/solar_system.html
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| | Models of the Solar System |
| | Geocentric Model = the Earth is at the center of the Solar System, with all the planets and the Sun orbiting about it. | | | The geocentric model was very difficult to work with | | | Ptolemaic Model after Ptolemy, circa 140 AD Problem: some planets exhibited retrograde motion. |
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http://www.southalabama.edu/physics/lectures/clark/LectPH101/solarsystemmodels.htm
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| | helio.htm |
| | In this geocentric model the Earth is stationary, and everything else moves around the Earth. | | | In the geocentric model the planetary motion had to be described by epicycles. | | | In the heliocentric model the Sun is at the centre of the solar system, and the motions of the other objects, as viewed by us on the Earth, are complicated by our motiion around the Sun as we are carried along by the Earth. |
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http://physics.csustan.edu/astro/helio.htm
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| | ox.html |
| | Like the geocentric model, the heliocentric model was encased in a sphere of stars. | | | The Copernican heliocentric model had the six planets that were known at the time orbiting the Sun, while the Moon orbits the Earth. | | | Tycho's model was never a serious contender, whereas the Ptolemaic model had been sufficiently refined over the centuries to endure to the bitter end. |
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http://www.astro.psu.edu/users/usher/ox.html
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| | GeocentricCRS (GeoAPI 2.1 alpha) |
| | A geocentric CRS deals with the earth's curvature by taking a 3D spatial view, which obviates the need to model the earth's curvature. | | | A 3D coordinate reference system with the origin at the approximate centre of mass of the earth. | | | Returns the coordinate system, which must be cartesian or spherical. |
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http://geoapi.sourceforge.net/snapshot/javadoc/org/opengis/referencing/crs/GeocentricCRS.html
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| | Geocentric (Ptolemaic) Perspective - Retrograde Epicyclic Motion - Scientific Revolution - Professor Robert A. Hatch |
| | In sum, from a geocentric perspective, retrograde motion was one of the major astronomical problems requiring attention in order to 'save the appearances.' To this end, Ptolemy's model was unsurpassed for simplicity, accuracy, and elegance until Copernicus some 1400 years later. | | | Because the earth is assumed to be fixed and stable in the center of the cosmos (geocentric and geostatic), and further, all heavenly bodies are assumed to move around the central earth, some device was needed to describe the apparent retrograde loop that planets make when in opposition to the sun. | | | Here the earth is depicted in the center of a planetary orbit, for example Mars. |
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http://web.clas.ufl.edu/users/rhatch/pages/03-Sci-Rev/SCI-REV-Home/resource-ref-read/chief-systems/08-0retro-2.htm
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| | Converting from Geographic to Geocentric Coordinates |
| | But in the ellipsoid model for the Earth's shape, the place where latitude is measured isn't the center of the Earth. | | | But sometimes you might want to know the geocentric latitude instead, and in that case you will want to know how to convert from one kind of latitude to the other. | | | No quadrant correction is necessary for L. r = b { (r cos L) + (r sin L) r is the geocentric distance |
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http://www.jabpage.org/posts/geodc.html
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| | Geocentric vs. Heliocentric from Ptolomy to Tycho |
| | The gradual emerging from Ptolemys geocentric theory (100170), to Tychos circular geocentric orbits (1546-1601) to Copernicus heliocentric model (14731543) signified such changes. | | | Geocentric vs. Heliocentric from Ptolomy to Tycho | | | In attempting to make sense of the earths motion, particularly its position in the space (regardless the significance of the term at the time), people have spent uncalculated amount of efforts to make observations throughout the history. |
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http://www.radessays.com/viewpaper/11325/Loopholes.html
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| | Geocentric model |
| | The following animation shows a simplified geocentric model with three objects: the Earth (blue) in the centre with the Sun (yellow) and Mars (red) in circular orbits around it. | | | Mars travels on an epicycle which is centred on its deferent. | | | You can stop the planet motion by clicking on the image at any time, and then press the mouse again to activate it. |
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http://www.astro.utoronto.ca/~zhu/ast210/geocentric.html
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