Now, the question arises, why did the Quran use such language in that manner that
appears contradictory?
It is because the Quran is an elegant book and is meant to display a beautiful text. Not only that you must reflect further:
Point 1: If God were to give a revelation to 7th century nomads it has to compel them and has to give them things to reflect upon so they believe in the scripture
Point 2: If that revelation is the final revelation and is supposed to compel people of the future, then that revelation cannot contradict reality that future humans will discover
Point 3: Therefore, the Quran MUST affirm 7th century belief without contradicting science.
And it must be sufficiently vague so that it doesn't compel those whose hearts are closed. (watch this video on this topic:
http://www.youtube.com/watch?v=uj4DS_QQYfo )
So yes, you find that in the Quran many words are purposely avoided or the Quran used alternate words so it could affirm 7th century beleif without contradicting (but supporting) science. So the Quranic scientific miracles have to be vague enough so they don't compel those whose hearts are closed and has to (at the same time) NOT contradict 7th century belief.
Imagine Muhammad directly told everyone at the time that the Earth is round and that you are standing off of the middle and God has made it so you don't fall off. Image Muhammad told people directly that mankind's parents were primates. People at that time would have considered him "idiotic" and "unscientific" and would have never considered Islam. So what did God do? In the Quran, there isn't a single verse that says the Earth is flat and there are many verses that hint at the Earth being round and there are many verses that hint at evolution. Those have to be sufficiently vague enough so it doesn't compel those whose hearts are closed AND not contradict 7th century belief AND support modern science.
Conclusion:
So why does the Quran sound so basic and why didn't the Quran cover extensively the complex scientific topics?God patronizes us in the Quran. He knows we are only limited to understanding certain things, and that is what he utilizes. So of course the Quran has to give 7th century people something to reflect upon. Its like me trying to explain the theory of relativity to a 2 year old. I am going to sound like I am 2 year old and I am going to avoid using bigger words and complex topics