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How to Teach Why the Dynamic Definition of Planets is the best

How to Teach Why the Dynamic Definition of Planets is the best. Alex Michael Leonard Klein & Harold Alden Williams Montgomery College, Takoma Park/Silver Spring. Lesson One: Historical Definitions. Seven Light, seven days Sun (a star), planets, and moons around planets

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How to Teach Why the Dynamic Definition of Planets is the best

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  1. How to Teach Why the Dynamic Definition of Planets is the best Alex Michael Leonard Klein & Harold Alden Williams Montgomery College, Takoma Park/Silver Spring

  2. Lesson One: Historical Definitions • Seven Light, seven days • Sun (a star), planets, and moons around planets • Asteroids and Comets and 2002 AA29 (earths other moon?) • 9 major planets or ~15 major planets • IAU definition August 2006 in Prague • Now 8 major planets Dynamic Definition of a Planet

  3. Lesson Two: Geophysical Definition Size of planet: Length/(radius or diameter) Size of planet: Mass (kg or g or slugs) Average density (=M/V=mass/volume) Composition {Chemical, state (plasma, gas/liquid/solid), mineral assemblage} Shape, how round, hydrostatic equilibrium? Aug 14-15, 2008 Dynamic Definition of a Planet 3

  4. Lesson Three: Size Definition Lower and Upper Bounds Aug 14-15, 2008 Dynamic Definition of a Planet 4

  5. Lesson Four: Dynamical Definition Time, evolutionary changes in planets within significant time-frames Chaotic or non-Chaotic Aug 14-15, 2008 Dynamic Definition of a Planet 5

  6. Lesson Five: The Good, the Bad, the Applicable (maybe Ugly) Pros and Cons Future Discoveries Exo-Planets Dynamical Definitions and families of orbits Aug 14-15, 2008 Dynamic Definition of a Planet 6

  7. Title and Image Only Slide Dynamic Definition of a Planet

  8. Same Thing but with Line Box around Figure Dynamic Definition of a Planet

  9. Same Thing but Figure not included in box Dynamic Definition of a Planet

  10. Slide with Text and Figure Lots of Diversity in the Solar System, and Lots of Color Too Objects in the Solar System • Note the amazing diversity of objects in the solar system • We include here planets, minor planets, and objects we can’t make up our minds about Dynamic Definition of a Planet

  11. Slide with Text and Figure(but with different style) • Note the amazing diversity of objects in the solar system • We include here planets, minor planets, and objects we can’t make up our minds about Dynamic Definition of a Planet

  12. Slide with Text and Figure(but with different style) • Note the amazing diversity of objects in the solar system • We include here planets, minor planets, and objects we can’t make up our minds about Dynamic Definition of a Planet

  13. Two Images Side-by-Side with Captions Neat Color-Color Slide Objects in the Solar System Dynamic Definition of a Planet

  14. Title and Multiple Figures:Arrange Them as you Like Here’s a color-color plot from web Carroll painting of Triton surface Best Hubble Image of Pluto Dynamic Definition of a Planet

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