Lecture26 - Big Bang, Black Holes, No Math No ASTR/PHYS 109...

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Big Bang, Black oles No Math Holes, No Math STR/PHYS 109 ASTR/PHYS 109 r David Toback Dr. David Toback ecture 26 1 Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 4: Inflation Lecture 26
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Prep for Today (Is now due) – L26 Reading: BBBHNM 22 HNM Reading questions: Chapter 22 End-of-Chapter Quizzes: Chapter 20 hapt r Paper Stuff Paper 1, 2 or 3: Misgraded? Let us know Paper 3 revision: CPR due Monday Paper 4: CPR due Monday 2
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Papers & End of Semester Last day of class Cancelled the last paper Paper 4: CPR due on Monday (no class, attend Friday class) Will finish grades shortly after that Let us know if you see problems Only doing text revisions: Email ASAP to be considered onors papers: Honors papers: Due tonight at midnight if you want to do a revision You can turn it in on Monday, but with no chance for revision End of Chapter quizzes for all chapters due Monday Can’t pass the course without them 3
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Course Evaluations Course evaluations will be done online via e epartment of Physics On- ine the Department of Physics On Line Course Evaluation System You should have gotten an email about this already he Fall 2011 evaluation period will: The Fall 2011 evaluation period will: Began on November 18 nds on Friday December 23 at 8AM Ends on Friday, December 23 at 8AM Please do these ASAP… won’t take long 4
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Interested in learning more next semester? Take stronomy Astronomy 111 5
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Unit 6 Going back in time and going forward in time Before the first millionth of a second and the Fate of the Universe 6 Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 4: Inflation
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Outline of Unit 6 1.Possible Fates of the Universe 2.Dark Matter article Physics 3.Particle Physics 4.Inflation Today . nf at on 5.Dark Energy y 7
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Today’s Outline Two pieces of evidence: 1. A Universe with the Critical Density and a Flat space-time 2. A Universe where the Temperature is the same in all directions Why these are “unexpected” nflation in the VERY early Inflation in the VERY early Universe 8 Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 4: Inflation
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Density of the Universe and General elativity Relativity General Relativity teaches us that the Density of the Universe determines the urvature of Remember, we’re not lking about local Curvature of Space-Time talking about local curvature, but the curvature of the entire 9 Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 4: Inflation universe
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Critical Universe Flat Space Time Crunch Critical Forever? Data points to a Universe with the The critical density Data 10 Big Bang, Black Holes, No Math Early Times & Fate of The Universe Topic 4: Inflation and flat space time
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Flatness and General Relativity General Relativity tells what the Bang ust have been like evolve into must have been like to evolve into something that gives a flat space-time ND has the speed we observe
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Lecture26 - Big Bang, Black Holes, No Math No ASTR/PHYS 109...

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