Translation and discussion of the De Iride, a treatise on optics by Robert Grosseteste

Abstract

Here I am proposing a translation and discussion of the De Iride, one of the short scientific treatise written by Robert Grosseteste. In the first part of his Latin text we find reflection and refraction of light, described in a geometrical optics. In the second part, Grosseteste is discussing the rainbow and how the colors are created.

arXiv commentRobert Grosseteste, De Iride, Latin text, English translation, discussion

Cited by in corpus (6)

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• Reflection and refraction in Robert Grosseteste's De Lineis, Angulis et Figuris
• The four elements in Robert Grosseteste's De Impressionibus Elementorum
• The colours of Newton's Opticks: an advanced project for excellent students