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Carl Sagan: Kepler's Laws of Planetary Motion

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Uploaded by on Oct 26, 2008

Carl Sagan explains Kepler's laws of planetary motion.

Clip from COSMOS: A Personal Journey.

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  • carl sagan was a great man i'm glad his work lives on

  • @dmh497 OBVIOUS TROLL IS OBVIOUS.

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All Comments (58)

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  • all you alienated physics majors who carry those huge chips on your shoulders should be out helping countries go to war according to the plot not trying to debate arbitrary points of view. That's the problem with all you scholarly people. Bunch of out of touch conformists who don't have a clue about the true psychology of humankind that you laude as having such great potential. And you wonder why nobody is buying what you're selling.

  • "Kepler's Laws?" it wasn't even wholly his discovery. But Carl Sagan thrived on that kind of immodesty. His accomplishment. Sniffing the thrones of people like Kepler.

  • People argue much about the existence of god because we do have a natural tendency to believe in him..so beyond a shadow of doubt God is the greatest

  • I love how he has all the candles in the room.

  • dad?

  • @HeyRuka

    Ha, ha, I'm confident thaty you would get a 4.0 in astronomy; you seem to have a keen interest in it.

    In addition to the Cosmos class the same instructor also taught another great astronomy class. Now he is retired so I don't really know how good the program is there now.

  • @iviewthetube So cool! I'd graduate with a 4.0 if Cosmos was a degree program. This episode was a god one, but it'shard tto pick faves with Cosmos episodes.

  • @HeyRuka

    Highline college had taught a class totally based off of Carl Sagan's Cosmos series.

    This episode was one of my favorites.

  • Didn't Hypatia discover the elliptical orbit first? Or Ptolemy? Why should Kepler receive credit, or am I missing something?

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