Lecture 1

Lecture 1 - Astronomy 2021b: The Search for Life in the...

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Astronomy 2021b: The Search for Life in the Universe Instructors: Dr. Louisa Preston (lpresto5@uwo.ca) WSC 027A Dr. Peter Brown (pbrown@uwo.ca) Teaching assistants: See homepage for details Required Text: Bennett and Shostak, Life in the Universe , 2nd Ed., 2007 (at Bookstore). 11
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Course Evaluation Clicker questions 20% Mid-Term Test 30% Final exam 50% 22
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Both are 3 hours 1st test covers Chapters 1 – 8 (excluding chapter 7) plus lecture /video material (to be held in class on Feb 28) Final Exam (50%) – comprehensive (Date: TBD) Both tests are multiple choice 33
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Clicker Marks Worth 20% of total final mark (staring Jan. 17th) Two components: Participation (16/20) + Correct Answer (4/20) Questions to be asked during lectures. Use “clickers” to answer. Do NOT have to get correct answer to get participation mark (scaled with number of questions answered) Get clicker hardware from bookstore Only use your own clicker during class! ~10 clicker questions per class Clicker ID is the first part of your email address ie. myid@uwo.ca where myid is your ID to be entered into the clicker unit No makeup of clicker marks 44
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Clicker Question (Example) Why are you taking this class? A. I need a science credit. A. I liked the topic and thought it looked interesting. A. I could only fit in a night class to my schedule. A. I heard it was a total bird course and would be easy marks. 55
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Class Courtesy Turn off cell phones, pagers and beepers when in class It’s a big room – talking carries and disturbs others. If you come in late – please sit in empty seats near a door, i.e., avoid crossing the whole class. 66
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Any Questions? 77
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This Class’ Readings Text: Chapter 1 Next Class’ Readings Text: Chapter 2 88
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Search for Life in the Univers e 99
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Astro biology biology Exo Bio astronomy Chemistry Physics Geology Paleontology Biochemistry Anthropology Sociology Linguistics 1010
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Questions related to extraterrestrial life Is there intelligent life in our Galaxy? … in the Universe? Can we communicate with other forms of life? When will we communicate with these other forms? How? Is there any other form of life in our Solar System? … in our Galaxy? Was there life in any form in the past in our Solar System? How did life originate on our planet? spontaneously? carried to Earth by (?) a meteorite? 1111
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1212
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Are We Alone? Humans have speculated throughout history about life on other worlds. and widely accepted by the public at the turn of the 20th Century scientists became more skeptical once we began to explore the planets Recent advances in astronomy and biology have renewed interest. discovery of extrasolar planets indicate that planetary systems are common
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Lecture 1 - Astronomy 2021b: The Search for Life in the...

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