Galileo, Falling Bodies and Inclined Planes: An Attempt at Reconstructing Galileo's Discovery of the Law of Squares

  title={Galileo, Falling Bodies and Inclined Planes: An Attempt at Reconstructing Galileo's Discovery of the Law of Squares},
  author={Willard C. Humphreys},
  journal={The British Journal for the History of Science},
  pages={225 - 244}
  • W. C. Humphreys
  • Published 1 June 1967
  • Physics
  • The British Journal for the History of Science
The most perplexing aspect of Galileo's work in physics is without doubt the sharp distinction one can draw between his essentially dynamic studies in such juvenilia as De Motu and the consciously kinematical approach of his later output—particularly the Two New Sciences. Whether one chooses to call this a shift from the “why” of motion to the “how”, or, as I should prefer, a shift from dynamics to kinematics, there can be no denying its existence. The Galileo who wrote that “The present does… 
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