Study the Quran in Advance........

Such statement would require knowledge in gravity and astronomy, which man did not know about 1,500 years go.

Like I said, many have accused the Prophet of being a madman. Allah Almighty did not want to complicate Islam, especially to the people who did not know much about science:
"Say (to them O Muhammad SAW): "I exhort you on one (thing) only: that you stand up for Allahs sake in pairs and singly, and reflect (within yourselves the life history of the Prophet SAW): there is no madness in your companion (Muhammad SAW), he is only a warner to you in face of a severe torment." (The Noble Quran, 34:46)"

"And (O people) your companion (Muhammad (Peace be upon him)) is not a madman; (The Noble Quran, 81:22)"

VERY IMPORTANT!!!!!!

That is why Allah Almighty used scientific notions instead of statements and equations. They are for man to discover as he advances in life. The more man advances, the more he will find that many of his discoveries are mentioned in the Noble Quran. That is why the Noble Quran's Miracles are for all times and all places!