Not true.
There are four basic reasons why Islam has little true claim to scientific achievement:
First, the Muslim world benefited greatly from the Greek sciences, which were translated for them by Christians and Jews. To their credit, Muslims did a better job of preserving Greek text than did the Europeans of the time, and this became the foundation for their own knowledge. (One large reason for this, however, was that access by Christians to this part of their world was cut off by Muslim slave ships and coastal raids that dominated the Mediterranean during this period).
Secondly, many of the scientific advances credited to Islam were actually “borrowed” from other cultures conquered by the Muslims. The algebraic concept of “zero”, for example, is erroneously attributed to Islam, but it was, in fact, a Hindu discovery that was merely introduced to the West by Muslims.
In fact, conquered populations contributed greatly to the history of “Muslim science” until gradually being decimated by conversion to Islam (under the pressures of dhimmitude). The Muslim concentration within a population is directly proportional to the decline of scientific achievement. It is no accident that the Muslim world has had little to show for itself in the last 600 years or so, since running out of new civilizations to cannibalize.
Third, even the great Muslim scientists and icons were often considered heretics in their time, sometimes for good reason. One of the greatest achievers to come out of the Muslim world was the Persian scientist and philosopher, al-Razi. His impressive works are often held up today as “proof” of Muslim accomplishment. But what the apologists often leave out is that al-Razi was denounced as a blasphemer, since he followed his own religious beliefs – which were in obvious contradiction to traditional Islam.
Fourth, even the contributions that are attributed to Islam (often inaccurately) are not terribly dramatic. There is the invention of certain words, such as alchemy and elixir, but not much else that survives in modern technology that is of any practical significance. Neither is there any reason to believe that such discoveries would not have easily been made by the West following the cultural awakening triggered by the Reformation.
http://www.thereligionofpeace.com/Pages/Myths-of-Islam.htm#science