Islam and The Revival of Mahdi

            *ISLAMIC SCIENTISTS* ***************************************** (a). Abu Ali al-Hasan ibn al-Haitham ( 965 - 1039 ) * Know as Alhazen to the West * Mathematical evolution of spherical mirrors * Rectilinear motion of light and use of lenses * Refraction angle variations * Magnifying effects of the plano convex lens (b). Abu Raihan al-Biruni ( 973 - 1051 ) * Gravitational force * Introduced the concept of elliptical shape of cosmelogical bodies (c). Abu'l Fath' Abd al-Rahman al-Khazini * Mechanics and Hydrostatics * Study of the Center of Gravity as applied to balance * Measurement of specific weights of bodies -----------------------------''''---------- 2. Mathematics (a). Muhammad Ibn Musa al-Khwarazmi * Known as Khwarizm to the West * Rule of algebraic equations * Solutions to quadratic and Cubic equations * Work on square roots, squares, theory of numbers, solution of the fractional numbers (b). Abul Fath Umar Ibn Ibrahim al-Khayyam * Know fo...