HWGACOR FOR DUMMIES

" An experiment by using a water-crammed glass sphere was done and al-Farisi confirmed the extra refractions mainly because of the glass may be ignored in his model.[74][c] As he famous in his Kitab Tanqih al-Manazir (The Revision in the Optics), al-Farisi employed a considerable distinct vessel of glass in The form of the sphere, which was stuffed