THE HWGACOR SLOT DIARIES

" An experiment with a water-loaded glass sphere was executed and al-Farisi confirmed the extra refractions because of the glass could possibly be overlooked in his design.[74][c] As he mentioned in his Kitab Tanqih al-Manazir (The Revision on the Optics), al-Farisi applied a considerable very clear vessel of glass in The form of a sphere, which wa