Carl Sagan: Kepler’s Laws of Planetary Motion

Posted by admin on March 6th, 2010 and filed under planetary | 14 Comments »

Carl Sagan explains Kepler’s laws of planetary motion.

Clip from COSMOS: A Personal Journey.

Duration : 0:5:53


[youtube GcKiG-CuvtA]

14 Responses

  1. keydetpiper Says:

    Great video… …
    Great video… anyone know what episode of Cosmos is was from?

  2. keydetpiper Says:

    From what I …
    From what I remember, Kepler worked with Tycho Brahe, who had made decades of very careful and detailed observations of Mars. He had to wait for Tycho to die because he wouldn’t share his data.

  3. daypass69 Says:

    Thats 1 smart mofo. …
    Thats 1 smart mofo. How the did he figure that out w/o a telescope? Now people are to busy trying to pay bills/housing etc. Life sucks then you die.
    You gotta go big if you want a place in history. life on earth is goin dew south.

  4. childofreletivity Says:

    carl sagan was a …
    carl sagan was a great man i’m glad his work lives on

  5. grummeper Says:

    Thanks! – GREAT!!!! …
    Thanks! – GREAT!!!!!!!!!!!

  6. nameskhan Says:

    btw thanks for …
    btw thanks for takin out your time for this vid, really appreciated

  7. nameskhan Says:

    lol! must be utd …
    lol! must be utd fan!

  8. FIFA00100 Says:

    O sry
    wrong …

    O sry
    wrong video, im rly sry

  9. FIFA00100 Says:

    FUCK U, i guess im …
    U, i guess im also glad that were an ocean apart as well :) hope u burn in which u dont beleive in :D

  10. peterm3964 Says:

    I love this stuff . …
    I love this stuff . Now if I could make use of it in my mundane daily life , that would be awesome .

  11. xanthoptica Says:

    No, this isn’t an …
    No, this isn’t an overstatement, in that Kepler is the first to understand that planets move at variable speeds in elliptical (non-circular) orbits. All the complexity of the older models (epicycles, deferents, equants) was washed away with the mathematical simplicity (and improved accuracy) of his three laws.

  12. zeefang Says:

    Very good video… …
    Very good video… is Sagan over stating when he says Kepler is “the first in the human species to understand correctly and quantitatively how the planets move” when Sumerian archeology has produced glyphs of the planets orbiting the sun?

  13. xxxCYGNUSx1xxx Says:

    great program thank …
    great program thank you.

  14. GOAQ Says:

    Legend.
    Legend.

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