Scientific achievement of the Muslim society cannot be considered to be of any consequence. Out of the total of 2,60,000 articles published every year on scientific research, hardly 2,500 i.e. about 1% are published in Muslim countries. One can be reminded that during Middle Ages the situation was entirely different. According to European authors of History of Science almost ninety percent of scientific literature during Middle Ages was published (in Arabic) by Muslims of Spain, Egypt, Iraq, Iran etc.
There are many other parameters, which show the backwardness of Muslim Societies in scientific field. For instance, total number of Science Ph.D.’s produced by about 450 Universities of Muslim Countries every year is less than 500, whereas in UK alone this number is 3000. According to one estimate total strength of Engineers and Scientist in Muslim world (1.30billion) is less than the scientists and engineers working in France alone (population 60million).
That's why it isn't admitted (above) that the published works during the middle ages WERE TRANSLATIONS! Not surprising when one considers that the koran itself was mostly plagiarism from hebrew and christian sources.