Lecture06 - Big Bang, Black ang, Holes No Holes, No Math...

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Big Bang, Black oles No Math Holes, No Math STR/PHYS 109 AS R/PHYS 09 Dr. David Toback Dr. Dav d oback ecture 5 & 6 Introduction Topic 4: Scientific Methods Big Bang, Black Holes, No Math 1 Lecture 5 & 6
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Prep for Today (Is now due) – L6 Reading: BBHNM: Chap BBBHNM: Chap 1-5 Recommended HOT: Chap 1 BHOT: Chap. 1-3 SHU: Chap. 1-3 (p55-69) TOE: Chap. 1 eLearning Quizzes: Chapters 2-3 Reading questions Two questions from Chapter 5 in Introduction Topic 4: Scientific Methods Big Bang, Black Holes, No Math 3 eLearning
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Next Topic: Scientific Methods Unit 1: 1. Introduction Done 2. Going Big Done 3. Going Small Done vidence and the Scientific 4. Evidence and the Scientific Method Today we move on to the Questions and How we go about answering Introduction Topic 4: Scientific Methods Big Bang, Black Holes, No Math 4 them
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Plan for the Next Few Weeks 1. More on the Questions nd e go about and How we go about answering them 2. Some of the history to ach us about the Today teach us about the method aper 1 3. Paper 1 4. Need to learn some ext Introduction Topic 4: Scientific Methods Big Bang, Black Holes, No Math 5 physics } Next Unit
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Paper 1 Will be due 1 week after we finish hapter 4 Chapter 4 Instructions for it on CPR More about this later in lecture, all info on the course webpage Topic: Describe how the data presented in class/textbook provides evidence for pf the Earth going around the Sun? xplain it to someone who isn’t taking Introduction Topic 4: Scientific Methods Big Bang, Black Holes, No Math Explain it to someone who isn t taking the class (no jargon) 6
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Next few Weeks Continued… To learn Cosmology will also need to learn a bit about: a t a out 1. Light and Doppler Shifts 2. Gravity and General Relativity . yy 3. Atomic Physics and Quantum Mechanics 4. Nuclear Physics and Chemistry 5. Temperature and Thermal Equilibrium Won’t spend too long on these, just enough to get back to the big picture… Introduction Topic 4: Scientific Methods Big Bang, Black Holes, No Math 7
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Evidence and The Scientific Method What are the Questions and how do we go about answering them? Scientific Method How do we know what we know? What is the evidence for the stories we heard growing up? History as example… bservation (looking at the Introduction Topic 4: Scientific Methods Big Bang, Black Holes, No Math 8 Observation (looking at the heavens)
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Ptolemy’s Universe (2 nd century) Observe that the Sun, oon and the other Moon and the other “wanderers” orbit the Earth in mostly circular paths Every so often the planets move backward for awhile, but these could be me mini-orbits way out there (epicycles)… Introduction Topic 4: Scientific Methods Big Bang, Black Holes, No Math 10 Hmmm…
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Looking at Mars in the Stars Introduction Topic 4: Scientific Methods Big Bang, Black Holes, No Math 11
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Cracks in the `early cosmology’ In 1514, Copernicus wrote that lanets and Earth orbit the Sun Planets and Earth orbit the Sun Much simpler in some ways o epicycles
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Lecture06 - Big Bang, Black ang, Holes No Holes, No Math...

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