Excellent increase the thirst to know more about everything, a thrust to hearts wounderful edited encyclopedia of knowledge and what ought not? 12th century research on chemistry wounderful information even toaday. European began to do research on chem in 19 cent. doing translations published translators own book in chemistry& 20th century only they could acheive an upper hand, even then also the study of chemical reaction named in arabic word chimiyaau.
