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WHAT IS A MILKY WAY?

WHAT IS A MILKY WAY?. Micah Moses Thomas Marshall Jabarius Jones Ryan Smithey. The Ptolemaic System . The greatest astronomer of the distant past was Ptolemy Geocentric, an earth-centered universe Series of concentric spheres Spheres made of crystal-like substances

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WHAT IS A MILKY WAY?

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  1. WHAT IS A MILKY WAY? Micah Moses Thomas Marshall Jabarius Jones Ryan Smithey

  2. The Ptolemaic System • The greatest astronomer of the distant past was Ptolemy • Geocentric, an earth-centered universe • Series of concentric spheres • Spheres made of crystal-like substances • Prime mover, line between universe and Heaven http://www.wwu.edu/skywise/history/ptolemy.jpg

  3. Copernicus and Kepler • Nicholas Copernicus believed in a heliocentric universe, or a sun-centered universe. • Johannes Kepler used astronomic data • Discovered that the orbits were egg-shaped with the sun toward the end of the ellipse instead of the center • Showed the orbits of planets around the sun are not circular http://ircamera.as.arizona.edu/NatSci102/NatSci102/images/copernicus3.jpg

  4. The New Way of Thinking Revolutions in mathematics Renaissance humanist learned Greek and Latin and read work by Ptolemy, Archimedes, and Plato Technical problems that required careful observations New inventions help new discoveries ClipArt ClipArt

  5. Starry messenger • Believed in Copernican system • Copernican system contradicted Bible • First European to observe the heavens regularly • Found mountains on moon • Discovered 4 moons around Jupiter and sunspots • Published Starry Messenger in 1610 • Under suspicion by catholic church Microsoft ClipArt Galileo Galilei Microsoft ClipArt

  6. Born in 1642 • Wrote Mathematical Principles of Natural Philosophy • Universal Law of Gravitation • Defined the 3 Laws of Motion http://www.quintic.com/education/case_studies/Gravity_19.jpg Newton

  7. 3.What kind of universe did Ptolemy believe in? a. heliocentric b. geocentric c. an earth-centered universe d. both a & c 4. What kind of data did Kepler use? a. survey b. law of motion c. astronomic d. All of the above Quiz Time Part 2

  8. What made works by Ptolemy, Archimedes, and Plato accessible? • Technical problems • New revolutions in mathematics • Renaissance humanist learned Greek and Latin • New inventions • What invention helped spread ideas? • Printing press • Telescope • Microscope • None of the above Quiz Time part 1

  9. 5. A line between the universe and Heaven is called a. The Equator b. The Prime Meridian c. The Line of Demarcation d. The Prime Mover 6. ______were central to the Ptolemaic System. a. Orbits b. Planets c. The Prime Mover d. None of the above Quiz Time Part 3

  10. Quiz time part 4 7. What did Galileo Galilei discover? • Mountains on the moon • Sunspots • All of the above • 5 moons around Jupiter 8. What type of universe did Galileo Galilei believe in? • Ptolemaic universe • Copernican universe • Heliocentric • B and C

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