Medieval scientists, such as Robert Grosseteste, were interested in discovering the nature of light. 
Grosseteste’s treatise, On Light, blends Neoplatonist theories of emanation and aspects of Aristotle’s cosmology. The effects of light became more important to the medieval artisans, particularly in architecture, and they frequently associated light with their theories of color. Light and color affected the thoughts of medieval thinkers on certain characteristics of beauty, such as radiance and clarity.
image: Bishop Robert Grosseteste, window on the South transept Westernmost. St Paul’s Parish Church, Morton, Near Gainsborough, 1896

Medieval scientists, such as Robert Grosseteste, were interested in discovering the nature of light.

Grosseteste’s treatise, On Light, blends Neoplatonist theories of emanation and aspects of Aristotle’s cosmology. The effects of light became more important to the medieval artisans, particularly in architecture, and they frequently associated light with their theories of color. Light and color affected the thoughts of medieval thinkers on certain characteristics of beauty, such as radiance and clarity.

image: Bishop Robert Grosseteste, window on the South transept Westernmost. St Paul’s Parish Church, Morton, Near Gainsborough, 1896