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The Medieval Church · c. 1340–1358
Questions on Aristotle's Physics
Jean Buridan · c. 1300–c. 1361
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What it is
A revision of Aristotle's account of motion, proposing that a thrown body carries an impressed impetus that persists — and that the heavens may move by the same principle.
Why it lasted
The impetus theory, the most important step between Aristotle and Newton's first law, taught across Europe for two centuries.
Where to read it
Public domain and free to read in full, though not held here. The archives below have it.
These open a search on each archive rather than a direct link, which is the honest way to point at an edition nobody here has checked line by line.
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