IDEAS/OPTIONS

ACTIVITY: Use HeavensAbove.com to find upcoming Hubble, shuttle, ISS, Iridium, and others passes. Assign viewing as homework.

 

CONTENT NOT ON NOTES PAGE

HISTORY: Ptolemy (geocentric circles & epicycles); Copernicus (heliocentric circles); Kepler (heliocentric ellipses)

DEMO: show how to draw ellipses using string and marker.

DISCUSSION: Newton's Mountain. Use bullet.

DISCUSSION: escape velocity

IMAGE: photo of Ida & Dactyl

DEMO: Orbit sims