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Slide 1 An Outdoor Lighting Revolution – The Transition to Solid-State LED Lighting Terry McGowan International Dark-Sky Association [email protected] Slide 2 The First…

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Slide 1 Mapping the Interstellar Medium Alyssa A. Goodman Harvard-Smithsonian Center for Astrophysics (on sabbatical 2001-2 at Yale University) cfa-www.harvard.edu/~agoodman…

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Slide 1  Earth Motions and the Heavens Rotation Revolution Precession Slide 2 What are the basic Earth motions? http://www.snyder7hills.org/units/ss/ch1/rotrev.html Rotation…