Abstract

In his questio on the motion of elements and mixed bodies in a void the Italian professor of practical medicine, Albertino Rinaldi da Salso di Piacenza (Albertinus de Rainaldis de Placentia, also known as Albertino da Piacenza), held the clearly non-Aristotelian view that an element in a void would not move instantaneously, but successively. To prove his conclusion Albertino draws to a large degree on arguments proposed by Richard Kilvington. Among the few 14th century authors who rejected Aristotle’s account of motion in a vacuum Kilvington had presented the most thorough analysis of this subject. While Kilvington is known for his sophisticated argumentation and entangled style of presenting and sometimes nearly hiding his own opinions, Albertino’s treatise is better structured, and his conclusions are brought out more clearly. His disputation is an impressive testimony to the impact of Kilvington’s views of motion in a void.