PPT-The Heliocentric Model

Proposed by Aristarchus of Samos 280 BC While the model is not accepted it is preserved and written about extensively by Archimedes Previous Models Ptolemaic System with Epicycles Note that the Earth and Sun are joined to constrain Mercury and Venus . Copernicus. Why Is He So Important?. Copernicus is responsible for spreading the theory that the Earth revolves around the Sun, not the other way around.. Heliocentric model – the Sun is the center of the Universe. Astronomy: The original Science. Imagine that it’s 5,000 years ago, and you are alive….. Clocks and modern calendars have not yet been invented…. How would you know what time it is????. How would you know that your birthday is just a week away???. Motions of the Planets. The ancient astronomers believed that the Universe was made up of spheres (orbs). The sphere that contained all of the objects seen in space was the Celestial Sphere. The sphere rotated around the earth making it appear as if all celestial objects were revolving around the earth. In this image you can see the stars and the Sun look as if they’re attached to the sphere Where is the person in the image trying to get to?. Lecture 7. By reading this chapter, you will . learn. 4-1. How ancient astronomers attempted to explain the motions of the planets. 4-2 . What led Copernicus to a Sun-centered model of planetary motion. COMMENTARY e heliocentric theory , artistic perspective, the triangu lar sail are equally compared to the revolutionary discovery of the Rev. Dr. Martin Luther in January 1518 about the spiritual me WHAT IS ASTRONOMY?. Astronomy – the study of the universe. Astronomy? Impossible to understand and madness to investigate.. — Sophocles, c. 420 BCE. Rotation: The turning of the Earth on its own axis. Answer. Heliocentric-sun centred. Geocentric-earth cantered.. 2. ) Which is the accepted theory?. a) Heliocentric . b) Geocentric.. Answer. a) Heliocentric-sun centred. 3. ) Galileo proved the heliocentric model to be true by observing . to the Cosmos. Dr. Edward J. Brash. Christopher Newport University. Overview. What is the goal of science?. What methodologies do we use in science?. How has our approach to science changed over the centuries?. Answer. Heliocentric-sun centred. Geocentric-earth cantered.. 2. ) Which is the accepted theory?. a) Heliocentric . b) Geocentric.. Answer. a) Heliocentric-sun centred. 3. ) Galileo proved the heliocentric model to be true by observing . Copernicus. Why Is He So Important?. Copernicus is responsible for spreading the theory that the Earth revolves around the Sun, not the other way around.. Heliocentric model – the Sun is the center of the Universe. objects outside the Earth (astronomical objects). Ancient Astronomy. “Ancient” means from . time long past, especially before the end of the Western Roman Empire in 476 A.D.. Many ancient peoples, including in ancient China and India, made detailed observations about the objects in the sky. How would you explain an image like this in ancient times?. Making a Foldable!. Make a 4 flap foldable!. Label the 4 flaps:. Aristotle. Ptolemy. Copernicus. Galileo. Inside, note as we go . through scientists:. https://www.youtube.com/watch?v=UtOEnTiAZlU. Geocentric Model . The Greek astronomer Ptolemy (c90-168AD) used measurements of the sky to create his . geocentric. model. . A model of the universe in which the stationary earth lies in the center and all other celestial objects orbit it.. met several times between 1545 and 1563 Among the reforms that resulted fromthis meeting of cardinals and the pope were the followingCopernicus and Galileo Scientific QuestioningWhile many of the scie