الفهرس | Only 14 pages are availabe for public view |
Abstract The accurate hist0ry 0f glass is unkn0wn, as there is an evidence emphasizing that the glass was used fr0m th0usands 0f years, in Egypt 7000 B.C at least, Mes0p0tamia 3500 B.C, in S0uth Asia 1730 B.C, in c0astal n0rth Syria and ancient India (Yadav and Singh, 2015a). Glass had been pr0duced by melting 0f raw materials, the first suggesti0n 0f pr0ducti0n 0f glass was by c0mbinati0n 0f a b0nes (Ca0) existing in the embers 0f a fire built 0n the sand (Si02) and sea salt (NaCl) at the c0astal saltwater sea. |