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Carl Sagan on the 4th Dimension

It's Sunday night, and time for everyone's favorite new show, "Cosmos: A Spacetime Odyssey." While we enjoy watching Neil deGrasse Tyson successfully fill Carl Sagan's shoes, it's nice to go back in time to watch clips from Sagan's classic show.

Here he is explaining the 4th dimension to us 3rd dimension creatures:

      

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