The Geocentric Theory vs. The Heliocentric Theory

The Geocentric Theory vs. The Heliocentric Theory The Geocentric Theory The earth is located at the center of the universe and all the planets

revolve around the earth. Geocentric Cont.. The Geocentric theory was believed by the Catholic church especially because the church taught that G-d put earth as the center of the universe which made earth special and powerful. The idea of the Earth actually moving was widely felt as a foolish suggestion

because, as they saw it, if the Earth was moving they would be able to feel it. Aristotle (384-322 B.C.) Developed an early model based on the concept of uniform circular motion. He placed the earth at the center of the universe and all of the planets, sun and

stars around it. When Aristotle lived, if a person could reason out why something happened, then you didnt need to do any experiments to see what would happen. In the realm of change, the natural motion of earthy materials was to seek the

center of the universe. This is why Aristotle placed the earth at the center of the cosmos. This is also his explanation for why objects fall when dropped. A dropped object is just following its natural tendency to seek the center of the universe. Aristotle reasoned that if the earth

rotated about its axis, we should fly off into space. Since we don't, the earth must be stationary. It would be almost 1900 years before Galileo introduced the concepts of gravity and inertia that explain why these effects are not observed even though the earth does move. Ptolemy (140 A.D.) Ptolemy advanced

the geocentric theory in a form that prevailed for 1400 years. He added mathematics to support the theory Ptolemys Problem Many supporters of the geocentric theory had

one piece of evidence they couldnt explain the movement of MARS. Lets take a break and investigate this movement. Mars Motion e.html

How did Ptolemy Explain this Problem? Ptolemy used geometric models to predict the positions of the sun, moon, and planets, using combinations of circular motion known as epicycles. An epicycle is an orbit within an orbit Having set up this model, Ptolemy then went on to describe the mathematics which he needed in the rest of the work.

Ptolemy s Model Epicycle s Included The Heliocentric Theory The Sun is the center of our solar system

Copernicus (1473-1543) Polish astronomer who advanced the theory that the Earth and other planets revolve around the Sun. This was highly controversial at the time. The Ptolemaic model had been widely accepted in

Europe for 1000 years when Copernicus proposed his model. Copernicus was told by many scholars that he should make his new findings accessible to others by publishing it. In 1543 the book called "On the Revolutions of the Heavenly Bodies" was released. Copernicus's book

had a great impact that angered the Catholic and Protestant Church. The Church became so angry the Geocentric theory made human beings seem closer to God and since earth was in the center that meant humans were more special. The heliocentric theory changed that perspective completely, making humans lose that position in the universe. Galileo (1564-1642) An Italian scientist, Galileo

was renowned for his contributions to physics, astronomy, and scientific philosophy. He is regarded as the chief founder of modern science. Galileo was condemned by the Catholic Church for his view of the cosmos based on the theory of Copernicus.

Galileos Books Galileo published his discoveries and support for the Copernican model in two books published in 1616 and 1632. Galileo was unusual for the time because he wrote in Italian rather than Latin like most scholars. Galileo also took great pains to make his books interesting often writing them in the form of dialogues rather than dry, boring dissertations.

After his first book, "Starry Messenger", was published he was warned by the Church not to publicly support Copernicism again. Trial Before the Inquisition Galileo abided by this edict until 1632 when he published "A Dialogue on the Two Chief World Systems". This book's outright support for the Copernican model and its ridiculing of the Ptolemaic model earned Galileo a trial before the Inquisition.

Galileo was accused of heresy and sentenced to house arrest for life. However, he got off easily compared to fellow Italian Giordano Bruno who was burned at the stake in 1600 for teaching Copernican ideas. In 1992, the Roman Catholic Church finally repealed the ruling of the Inquisition against

Galileo. The Church gave a pardon to Galileo and admitted that the heliocentric theory was correct. This pardon came 360 years after Galileo's death.

Recently Viewed Presentations

  • 3D Printing - Mr. Beekman's Class

    3D Printing - Mr. Beekman's Class

    May not need a donor for organs in the future. Will provide on-demand Human Tissue. Use for drug testing for medicine on human tissue created. Materials used to print organs, are the live tissue/cells from the person it is meant...
  • Climate Advisor Team (CAT)II

    Climate Advisor Team (CAT)II

    CAT II Members. Training . Meredith Hart, Wanda Moore, Keisha Willingham, Antwan Reid, Michelle McIntyre. Onboarding. Ian Sherry, Jo Howard, C Jen Johnson, Jen O ...
  • Percent Yield and Stoichiometry

    Percent Yield and Stoichiometry

    Percent Yield and Stoichiometry Honors Chemistry Thanks to Whittier Union High School District, Whittier, CA Percent Yield describes how much product was actually made in the lab versus the amount that theoretically could be made.
  • THE HEART - Quia

    THE HEART - Quia

    THE HEART THE HUMAN HEART Acts as a pump Is made of muscle (called cardiac muscle) Beats about 70 times a minute Is surrounded by a tough membrane called the pericardium Is divided into 4 chambers CHAMBERS OF THE HEART...
  • Counselling the Already (Self?) Diagnosed Client

    Counselling the Already (Self?) Diagnosed Client

    DSM-5, counselling & our approach. Counselling in a therapy culture? (Interactivity #1 - Your experiences) Self-diagnosing clients? (Interactivity #2 - Counselling the self-diagnosed client) Families and diagnosed children (Interactivity #3 - Beyond discursive capture) Your critical & generative responses to...
  • Safeguarding Adults in England June 28th 2016

    Safeguarding Adults in England June 28th 2016

    Care Act Stocktake - Safeguarding referrals appeared to almost double in the first six months after the Care Act 2014 came into force. Awaiting national Safeguarding activity data for 2015/16 - anecdotally seems to have had variable impact
  • PetSmart PetCo Pounds Per Bag Price Pounds Per

    PetSmart PetCo Pounds Per Bag Price Pounds Per

    PetSmart. PetCo. Pounds Per Bag . Price. Pounds Per Bag . Price. Iams Pro Active Health Weight Control . 17.5. 20.99. 17.5. 21.99. Purina 1 Healthy Puppy Formula . 18
  • Civil Liberties

    Civil Liberties

    Cannot pass a law that bans the burning of the flag, it is protected under the freedom of expression. Citizens United v. FEC . Campaign Finance Reform law cannot prevent corporations and labor unions from spending money on ads independent...