Synopsis: Tycho Brahe and Observational Astronomy -- Tycho Brahe and His Alternative System -- The Empirical Impasse in Astronomy -- The Value of More Precise Observations -- Tycho's Observational Program: 1576-1597 -- The Crisis in "Mathematical" Astronomy: The Three Chief World Systems in 1600.
Generally corresponds to the video segment: Class 2, Part 13 - 14.