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Kepler on Planetary Motion

This video is a tongue in cheek introduction to an innovative experiment in which students prove for themselves, Kepler's First and Second Laws. Kepler speaks for himself, providing our SMAP students the opportunity to hear it from the man; the changes in cosmology across time, past and present, of our ideas about planetary motion. Join us and hear the stories behind the story; the progression of theories of celestial mechanics, suspicion of foul play, and the ah-ha moment, all told. Kepler recounts early theories of orbital motion and sets in perspective the models that led up to his final realization that orbits are not circular! Check out the the SMAP Live lesson we presented on Zoom, using the orbit of Pluto,    • Proving Kepler's Laws - SMAP Live   Educators may find the written lesson, teacher guide, supporting materials, and sample student data here, https://bit.ly/SMAPSelectedLessons. Time line 0:00 Introducing the Kepler's Law Activity 0:43 Kepler begins with the Earth-centered system 1:48 Copernicus shakes things up 3:06 Kepler enters with an eye on Tycho Brahe 5:40 Brahe's untimely passing 7:12 Introducing the ellipse 10:20 Now it's up to you. The creative thumbnail for this video was created by Jonathan Sullivan-Wood, Purdue Physics and Astronomy graduate staff.