The theory of impetus, developed in the Middle Ages, attempts to explain the forced motion of a body, what it is, and how it comes about or ceases. In ancient and medieval times, motion was always con
1582 woodcut of artillery, by Walther Hermann Ryff [de]
Jean Buridan was an influential 14th‑century French scholastic philosopher.
Theory of impetus
…inclination is spent. He also claimed that a projectile in a vacuum would not stop unless it is acted upon. This idea was later described as "impetus" by Jean Buridan, who may have been influenced by Ibn Sina. In the 12th century, Hibat Allah Abu'l-Barakat al-Baghdaadi adopted Philoponus' theory of impetus. In his…
Iohannes Buridanus
14th-century manuscript of Buridan's Questions on Aristotle's De anima.