id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_7ldou65t7fgdzjqe6jufixmuvy	Maarten Van Dyck	Idealization and Galileo's Proto-Inertial Principle	2018	11	.pdf	application/pdf	5629	342	55	of the "horizontal" is underspecified if not related to a broader spatial framework, Galileo's own writings seem to use the idea in a way in which the relevant motion is both rectilinear and circular (for a recent discussion, see Miller he discusses bodies in free fall; see Van Dyck 2017, 33–35.) Stevin articulates a clear norm for mechanical speculation: the idealizing imaginary operation that is at the basis of its mathematical demonstrations must be constrained by the results of specific material operations if it is to be of any In what follows, I compare Galileo and Stevin on the question of motion on a horizontal plane, as a way to Galileo's silence on the question of conservation of motion on a horizontal plane is of a nature very different from Stevin's. In his Letters on Sunspots from 1613, Galileo again considered what happens when a body on a horizontal plane is put into motion (Galilei 1890,	./cache/work_7ldou65t7fgdzjqe6jufixmuvy.pdf	./txt/work_7ldou65t7fgdzjqe6jufixmuvy.txt