If we gather all the things mentioned about the scientific indications of the Quran in which Christians have replied saying "such and such many years before Islam knew such and such a thing" we gather that the Quran mentions a wide range of scientific topics such as "Embryology, Cosmology, Meteorology, Oceanography, Geology, Anatomy, Physics... etc " which was uttered out of the mouth of a desert Arab whom was unedjucated and could not read or write then in a whole nut shell managed in his description in the Quran to rhyme, but yet structered it in prose, hymes, and oratory combined.
AMAZING we would call it when looking back also to his life style surrounded by hyprocrites, engaged in wars, and family life during his last 10 years as a Prophet of Alllaah whom suffered 13 years of onslaughter, obuse, persecution and oppression by his own people in the begining of his mission as a Prophet. During these times is when the Quran was revealed in progressive intervals. Surely didnt have anytime to study.
Did he learn it prior to this proclaiming to be a Prophet ? Well lets see who did he learn it from ? The 7,8,9,13,28 misterious people whom according to week refutation "such and such many years before Islam knew such and such a thing" spoke an alien language to the language of Muhammad.
Lets also consider, he would have to memorize everything he learnt as he couldnt read and write, then find the time someway to intergrate it into rhymes, prose, hymes, and oratory which is virtually suppose to be imposible to do in the Arabic language especially if you dont know how to read and write, which would take serious exaustive vocabulary and grammar of the Arabic language, before he started proclaiming to be a Prophet.
O yea we havent forgotten the allegations by Christians that he copied from the Bible and then with the same slip of the tongue he was influenced by the devil. So why would he need to copy from the Bible and learn from his 9-28 misterious teachers from foreign countries if he was influenced by the devil who could have given him all the info he needed from the Bible and in science ?
Again we have to say the Quran is Amazing of how it was produced looking back at the conditions of the life style of the man whom uttered its words within 23 years of his prophethood. The Christian refuting allegations to disprove his prophethood are not unified and then on the other hand make no sense when ALL THINGS HAVE BEEN CONSIDERED without prejudice and incriminating their own book or the prophethood of otheir biblical prophets