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Claudius Ptolemy and the Roman Catholic Church

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Callie Burke

on 12 November 2015

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Transcript of Claudius Ptolemy and the Roman Catholic Church

Ptolemy and the Church
Ptolemy's model suggested the Earth was the center of the universe
The church agreed with Ptolemy because his theory did not contradict biblical texts of the genesis (4)
Day One: "Let there be light" (Genesis 1:3-4)

Day Three:“Let there be a dome in the middle of the waters to separate the waters from each other.”(Genesis 1:6-7)

Day Two:“Let the waters under the sky come together into one place so that the dry land can appear.” (Genesis 1:9-10)

Day Four:“Let there be lights in the dome of the sky to separate the day from the night. They will mark events, sacred seasons, days, and years. 15 They will be lights in the dome of the sky to shine on the earth.” (Genesis 1:14-15)

Celestial bodies
Because the creation of the planets came after the Earth, it would make sense that the Earth was the center of the universe
Anyone who did not agree with Ptolemy's theory and went so far as to oppose it were punished (4)
Claudius Ptolemy and the Roman Catholic Church
Claudius Ptolemy
Lived in Egypt around 100 AD (2)
Mathematician, astronomer, geographer, astrologer and poet (5)
Adapted and enhanced the Geocentric model of the universe (5)
Most of the facts pertaining to Ptolemy’s life are shrouded in mystery (2)
Geocentric Model
Belief that the Earth was at the center of the universe and all other bodies moved around it (5)
First models were created by Aristotle and Plato (5)
VERY simplistic
did not account for planetary brightness or their retrograde motion (5)
Ptolemy's Geocentric Model
Each planet moved in a small circle, called an epicycle, whose center moved in a larger circle, called a deferent, around the Earth (5)
Included five known planets plus the sun & moon(5)
Planet brightness was used to estimate planets' distance from Earth (5)
Galileo Galilei
Italian astronomer, physicist, engineer, philosopher, and mathematician (3)
Played a major role in the scientific revolution during the Renaissance
Developed Heliocentric model (3)
Sun at center of universe
The Chuch rejected his idea because it went against religious evidence found in the Bible (3)
Fun Facts
Modern planetariums are built using gears and motors that reproduce the Ptolemaic model for the appearance of the sky as viewed from a stationary Earth (7).

Planet means "wanderer" in Greek (5)
Works Cited
1. "Aristotle (384-322 B.C.E.)." ucmp.berkeley.edu. University of California, Berkeley, n.d. Web. 11 Nov. 2015.

2. "Claudius Ptolemy Biography." famouspeople.com. Society for Recognition of Famous People, 2015. Web. 11 Nov. 2015.

3. Colley, Eleanor and Sarah Tanat-Jones. "Galileo and His Relationship with the Church." N.p., 9 Dec. 1999. Web. 11 Nov. 2015.

4. Denning, Jennifer. "Geocentric vs. Heliocentric Theory." Emporia State University, 5 May 1999. Web. 11 Nov. 2015.

5. "The Geocentric Universe." nju.edu. Nanjing University, n.d. Web. 11 Nov. 2015.

6. The Holy Bible, King James Version. Cambridge Edition: 1769. King James Bible Online, 2015. Web. 11 Nov. 2015.

7. "The Ptolemaic Model." Polaris Project. Iowa State University, n.d. Web. 11 Nov. 2015.

Like Ptolemy, Aristotle believed in a geocentric model of the universe
"...every word that did not contradict the Bible -- as eternal truth. Fused and reconciled with Christian doctrine into a philosophical system known as Scholasticism,
Aristotelian philosophy became the official philosophy of the Roman Catholic Church
." (1)
384-322 B.C
Aristotle's work allowed the Church to hold more power by controlling the knowledge in science
Earth doesn’t feel as if it’s moving (5)
A strong wind would be present if the Earth moved at high speed around the Sun (5)
Stars do not change position when vantage points change (5)
Biblical passages suggest the Sun is in constant motion while the Earth remains in one place (5)

NOTE: The Church controlled scientific thought during this time period and anyone not believing in a geocentric model of the universe was punished (4)
Why does the Earth NOT revolve around the Sun?
Biblical Proof:
by Kate, Isabelle, Callie, and Robert
Was forced to admit he was wrong in court (3)
Placed in house arrest until he died
Heliocentric model not appreciated or acknowledged in his lifetime (3)
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