Medieval cosmology meets modern mathematics

A modern computer simulation shows a two-dimensional cross section of celestial spheres produced in a process suggested by 13th century scholar Robert Grosseteste. With certain specific values plugged in for quantities such as the intensity of light and the strength of interaction between light and matter, the simulation produced nine “perfect” spheres surrounding an imperfect realm of terrestrial matter, just as medieval cosmologists envisioned.

Bower et al 2014

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