Islam contributed nothing to science, people who happened to be Muslims did. Islam itself is filth, barbaric nonsense.
Some verses from the book of the religion of peace:
Quran (8:12) - "I will cast terror into the hearts of those who disbelieve. Therefore strike off their heads and strike off every fingertip of them"
Quran (3:56) - "As to those who reject faith, I will punish them with terrible agony in this world and in the Hereafter, nor will they have anyone to help."
Quran (3:151) - "Soon shall We cast terror into the hearts of the Unbelievers, for that they joined companions with Allah, for which He had sent no authority".
Quran (4:89) - "They but wish that ye should reject Faith, as they do, and thus be on the same footing (as they): But take not friends from their ranks until they flee in the way of Allah (From what is forbidden). But if they turn renegades, seize them and slay them wherever ye find them; and (in any case) take no friends or helpers from their ranks."
Quran (8:65) - "O Prophet, exhort the believers to fight..."
Quran (9:14) - "Fight against them so that Allah will punish them by your hands and disgrace them and give you victory over them and heal the breasts of a believing people."
Quran (9:29) - "Fight those who believe not in Allah nor the Last Day, nor hold that forbidden which hath been forbidden by Allah and His Messenger, nor acknowledge the religion of Truth, (even if they are) of the People of the Book, until they pay the Jizya with willing submission, and feel themselves subdued."
Quran (9:30) - "And the Jews say: Ezra is the son of Allah; and the Christians say: The Messiah is the son of Allah; these are the words of their mouths; they imitate the saying of those who disbelieved before; may Allah destroy them; how they are turned away!"
Quran (9:73) - "O Prophet! strive hard against the unbelievers and the hypocrites and be unyielding to them; and their abode is hell, and evil is the destination."
Quran (48:29) - "Muhammad is the messenger of Allah. And those with him are hard (ruthless) against the disbelievers and merciful among themselves"
You can look up the verses yourself here
http://www.usc.edu/org/cmje/religiou.../quran/verses/
There are many more if you bother to look. Since the death of Muhammad, Muslims have been a scourge throughout the Middle East and parts of Europe, waging war and killing innocents wherever they go.