Labels:text | screenshot | font OCR: explorations like a scholastic argument. He makes alternative propositions, then roundly disputes them with his invented adversaries. He concludes, in this instance, with a geometric demonstration of the action of light in straight lines, which proves his hypothesis. At the bottom of the page, the scallop-edged sphere represents the waves on the surface of the moon. D Leonardo shows that rays of light striking and rebounding from this surface do not intermingle and become confused, as claimed by his "adversary."
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