Chapter19 - Big Bang, Black Holes, No Math ASTR/PHYS 109...

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Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 2: Dark Matter 1 Big Bang, Black Holes, No Math ASTR/PHYS 109 Dr. David Toback Lecture 24 & 25
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Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 2: Dark Matter 2 Prep for Today (Is now due) – L25 Reading: BBBHNM 20 & 21 Reading questions: Chapter 20 & 21 End-of-Chapter Quizzes: Chapter 18 Paper Stuff Paper 1, 2 or 3: Misgraded? Let us know Paper 3 revision: Due tonight at Midnight Paper 4: Due tonight at Midnight
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Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 2: Dark Matter Papers & End of Semester Canceling the last paper Paper 4: Paper due tonight CPR due on Monday (no class, attend Friday class) Will finish grades shortly after that Let us know if you see problems Want a revision? Email the draft ASAP Wednesday is the last day of class Honors papers due Will quickly cover Chapters 21 and 22 End of Chapter quizzes for all chapters due Monday Can’t pass the course without having finished them all 3
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Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 2: Dark Matter 4 Course Evaluations Course evaluations will be done online via the Department of Physics On-Line Course Evaluation System You should have gotten an email about this already The Fall 2011 evaluation period will: Began on November 18 Ends on Friday, December 23 at 8AM Please do these ASAP… won’t take long
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Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 2: Dark Matter Interested in learning more next semester? Take Astronomy 111 5
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Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 2: Dark Matter 6 Unit 6 Going back in time and going forward in time Before the first millionth of a second and the Fate of the Universe
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Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 2: Dark Matter 7 Outline of Unit 6 1.Possible Fates of the Universe 2.Dark Matter 3.Particle Physics 4.Inflation 5.Dark Energy Today
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Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 2: Dark Matter 8 Summarizing the Data so Far 1. Redshifts of Galaxies gives us the speed of expansion fairly accurately 2. The measured mass of the “stars and stuff” gives about 4% of the critical density 3. The Cosmic Background Radiation is consistent with a density of 100% of the critical density Something is inconsistent…
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Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 2: Dark Matter 9 The Story There is a strong case to be made that there is Matter and Energy in the Universe we can’t “see” directly The Evidence for Dark Matter Today Particle Physics and Dark Matter The Standard Model and Supersymmetry Next time
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Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 2: Dark Matter 10 Today’s Lecture The Case for Dark Matter 1.The Rotation of Galaxies 2.Gravitational Lensing 3.Colliding Galaxies
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Big Bang, Black Holes, No Math
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Chapter19 - Big Bang, Black Holes, No Math ASTR/PHYS 109...

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