Supra-lunar bodies move circularly. Celestial bodies associated with a different kind of body ether or quintessence. Fire rises naturally. Experience in Aristotle demonstrative science can t rely on particular, individual experiences. Hell at the centre of the Aristotelian universe the lowest place.
Celestial bodies influence earth.
The printing press transformations in the way things were learned about nature. Possibility of scholars in distant places having access to the same text. I will describe what happened to me when I passed to the Indies. Having read what poets and philosophers write of the Torrid zone, I persuaded myself that when I came to Equator, I would not be able to endure the violent heat, but it turned out otherwise. For when I passed the Equator, which was when the sun was at its zenith there, having entered the zodiacal sign of Aries, in March, I felt so cold that I was forced to go into the sun to warm myself.