Zita's notes for week 3:  Gravity

    Astronomy and Cosmologies, Spring 99
    with E.J. Zita
    Tuesday afternoon        Tuesday evening            Thursday afternoon        Thursday evening
     
      One-minute quiz
      questions?
      logistics
      • hw
      • papers
      • research projects
      • Stars of the First People
      observing journals and projects

      Last week:  moon's motion and eclipses ( discuss moon's rotation)
                         Baloney detection papers
                         Size of Earth and Sun

      This week:  Gravity;  Galileo -> Kepler <-> Newton
                          Mass of Earth and Sun
                          Oscillations -> weigh Jupiter and the Galaxy
       


    a. Tuesday afternoon

    Last year's notes on Kepler and Newton's laws...

    Baloney detection:

    • good and bad journals
    • paraphrasing and plagiarism - don't
    • good writing sample - concise, clear, original
    Review
    • Ch.3 - moon motion...
    • Equations memorized so far:  v=x/t and s=Rq
    • size of Earth and Sun
    New
    • Galileo:  F=ma (and telescope -> Galilean satellites)
    • Kepler:  period increases with orbit radius
    • Newton: F = GmM/R^2
    • Derive Kepler's laws
    • MASS of Earth and Sun
     

    b. Tuesday evening

    Workshop:  oscillations of Jupiter's moons -> weighing Jupiter


    c. Thursday afternoon

    Second Library research workshop


    d. Thursday evening

    Finish Mass of Earth and Sun
    Workshop part 4:  Weighing the Galaxy -> dark matter
    Start homework together

    Stars of the First People:  stories about your research topics

    Craig tutorial on telescope?

     

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