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Explorations of the Universe Lecture I. Steven Dutch LS-116 Phone:465-2246 e-mail: [email protected] home page: www.uwgb.edu/dutchs. Some Issues in Cosmos. Carl Sagan! Authority and Limits of Science Science and Religion Science and Irrationalism.

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Explorations of the universe lecture i l.jpg

Explorations of the Universe Lecture I

Steven Dutch

LS-116 Phone:465-2246

e-mail: [email protected]

home page: www.uwgb.edu/dutchs


Some issues in cosmos l.jpg
Some Issues in Cosmos

  • Carl Sagan!

  • Authority and Limits of Science

  • Science and Religion

  • Science and Irrationalism


Cosmos 1 shores of the cosmic ocean l.jpg
Cosmos #1 - Shores of the Cosmic Ocean

  • Personal Voyage

  • "The Cosmos is all that ever is, was or will be.”

  • "Stars of diamond - atoms as massive as stars."

  • "We are made of star stuff"


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Survey of the Universe

  • “Ship of the Imagination”

  • "The patterns of nature and the laws of nature are the same everywhere.”

  • "Rare forms of matter"


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The Library at Alexandria

  • First real research institute in history

  • Start of Western science?

  • Symbol

    • Loss of Achievements

    • Dangers of Anti-Intellectualism

    • Need to Relate to Society


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The Cosmic Calendar

  • Compresses the history of the Universe into a year. On this scale:

    • One year = 15 billion years

    • One month = 1.25 billion years

    • One day = 40 million years

    • One hour = 1.7 million years

    • One minute = 30,000 years

    • One second = 500 years


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Essential Points

  • What a light year is

  • What galaxies are: how big, how many stars (nearest power of ten)

  • Role of Library of Alexandria in history and as a symbol in Cosmos

  • Who Eratosthenes was, what he did and how he did it.

  • Cosmic Calendar: when universe forms, Milky Way, Solar System, life and humans appear.


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