FACTS ABOUT HWGACOR REVEALED

" An experiment by using a water-loaded glass sphere was executed and al-Farisi showed the extra refractions as a result of glass could be disregarded in his design.[seventy four][c] As he observed in his Kitab Tanqih al-Manazir (The Revision in the Optics), al-Farisi used a considerable obvious vessel of glass in The form of a sphere, which was cr