THE BASIC PRINCIPLES OF HWGACOR LOGIN

" An experiment by using a water-filled glass sphere was performed and al-Farisi showed the extra refractions a result of the glass may be ignored in his product.[seventy four][c] As he mentioned in his Kitab Tanqih al-Manazir (The Revision from the Optics), al-Farisi made use of a considerable crystal clear vessel of glass in the shape of a sphere