Carl Sagan on Tycho Brahe, Johannes Kepler, and ellipses

Carl Sagan on Tycho Brahe, Johannes Kepler, and ellipses

Carl Sagan on Tycho Brahe, Johannes Kepler, and ellipses

Carl Sagan on Tycho Brahe, Johannes Kepler, and ellipses

User: Randolf Emanuel

Views: 34

Uploaded: 2015-05-21

Duration: 09:03

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