THE BASIC PRINCIPLES OF HWGACOR LOGIN

" An experiment with a drinking water-loaded glass sphere was performed and al-Farisi showed the extra refractions due to glass may be ignored in his product.[74][c] As he noted in his Kitab Tanqih al-Manazir (The Revision from the Optics), al-Farisi employed a substantial obvious vessel of glass in the shape of a sphere, which was crammed with h2o