Chapter 49. On the nature of the sun.

1. The sun, being made of fire, heats to a whiter glow because of the

excessive speed of its circular motion. And its fire, philosophers

declare, is fed with water, and it receives the virtue of light and

heat from an element opposed to it. Whence we see that it is often

wet and dewy.

An encyclopedist of the dark ages: Isidore of Seville · 第 42 / 63 章