Famous Italian physicist, was born in Bologna in 1618 and died in 1663. He entered the order of the Jesuits, where he was Professor of rhetoric, geometry and philosophy. He devoted himself to the study of astronomy; He described with care spots of the Moon, and gave a denomination that has prevailed over the Hevelius and remains still today. His main discovery is that of the inflection of light, which he called diffraction. He left a work entitled: Physico-Mathesis de lumine, coloribus et iride.