Article ID: CBB807557796

Galilée et la force centrifuge (2011)

unapi

This work intends to focus on Galileo’s study of what is now called ‘‘centrifugal force,’’ within the framework of the Second Day of his Dialogo written in 1632, rather than on the previously published commentaries on the topic. Galileo proposes three geometrical demonstrations in order to prove that gravity will always overcome centrifugal force, and that the potential rotation of the Earth, whatever its speed, cannot in any case project objects beyond it. Each of these demonstrations must consequently contain an error and it has seemed to us that the first one had not been understood up until now. Our analysis offers an opportunity to return to Galileo’s geometrical representation of dynamical questions; actually, we get an insight into the sophistication of Galileo’s practices more than into his mistakes. Our second point, concerning the historiography of the problem, shows an evolution from anachronic critics to more contextual considerations, in the course of the second half of the twentieth century.

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Authors & Contributors
Drake, Stillman
Lawrence Sklar
Dubouclez, Olivier
Schmit, Christophe
Topper, David R.
Teichmann, Jürgen
Concepts
Mechanics
Gravitation
Dynamics
Forces
Physics
Motion (physical)
Time Periods
17th century
18th century
Medieval
Ancient
16th century
Places
Italy
Greece
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