A Conceptual Model Discussed by Galileo and Used Intuitively by Physics Students

Abstract

Galileo’s works are notable for their use of two interesting techniques: the use of qualitative thought experiments for presenting basic concepts and theories, and the inclusion and consideration of theories Galileo considered to be wrong, as voiced by Simplicio in the Dialogues(Galileo, 1960). One wonders why Galileo did not do as modem physics texts do and simply present mathematical results. Presumably, Galileo recognized that it was going to be difficult to present his views convincingly to his colleagues, since they subscribed to a more Aristo­ telian approach that essentially amounted to a very different “ world view.” It is plausible that he felt it necessary to discuss and counter the preconceptions of his colleagues explicitly, and to use qualitative arguments in presenting his own theory, because he sensed the strong resistance of their world view to change.

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