Ancient observatories - PowerPoint PPT Presentation

March 21, 2005

March 21, 2005. Matter and Energy B Ms. Janney Watkins Mill High School 9th grade “Matter and Energy” and JPL “Solar System Ambassador”. Today is “Sun-Earth Day”. Spring Equinox, aka the “Vernal Equinox” Sun rises exactly in the East and sets exactly in the West

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265 views • 7 slides

March 21, 2005

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140 views • 7 slides

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