Lec04 - Discovering the Universe for Yourself Key themes...

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Discovering the Universe for Yourself
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Key themes You – A thinking part of the universe • Observation Look • Perspective – Must take account of how our point of view ” affects what we see. ..
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Our New Perspective
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A conversation during a family car trip one evening ca. 25 years ago • “Daddy, what’s that thing up in the sky? • “Why that’s the moon, son.” • “Why is it following us??”
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Lunar Motion Phases of the Moon’s 29.5 day cycle • new • crescent • frst quarter • gibbous • Full • gibbous • last quarter • crescent waxing waning
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Questions 1. About what is the phase of the moon right now? a. First quarter b. Third quarter c. Waxing crescent d. Waning gibbous 2. About what time does the moon rise today/tonight? a. Noon b. 9:00 p.m. c. 5:00 a.m. d. Midnight
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Eclipses When the Moon’s orbit intersects the ecliptic (node): at new moon solar eclipse at full moon everyone on the nighttime side of Earth can see it
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This note was uploaded on 02/01/2012 for the course PHYS 133 taught by Professor Staff during the Fall '08 term at University of Delaware.

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Lec04 - Discovering the Universe for Yourself Key themes...

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