Galileo's theory of motion: Processes of conceptual change in the period 1604–1610

One aim of this paper is to provide an assessment of the recent attempts to interpret the development of Galileo's theory of motion in the late Paduan period 1604–1610. In addition to this a new interpretation of this process of development is advanced. This interpretation is the first that proves able to provide a full account of all the features on folio 152 r of volume 72 of the Galilean manuscripts which has been claimed to be of crucial significance. The major feature of the interpretation is that it is the first to account for the relationship between Galileo's theoretical and experimental work in the period 1604–1610.