" An experiment which has a h2o-stuffed glass sphere was performed and al-Farisi showed the extra refractions due to glass may be overlooked in his model.[seventy four][c] As he famous in his Kitab Tanqih al-Manazir (The Revision in the Optics), al-Farisi made use of a significant obvious vessel of glass in The form of a sphere, which was stuffed w