The Barrier Between the Two Seas (مرج البحرين يلتقيان)
There is a strange science involved in the mixing of waters. The phenomenon is different when two seas meet and different when fresh and salty water meet, and Quran has explained it all in clear details. Amazingly, after about 1400 years, the modern science has come up with all theories which certify the correctness of Quranic verses.
Tafseer of the verse. “He has let loose the two seas (the salt water and the sweet) meeting together. Between them is a barrier which none of them can transgress”. Surah Ar-Rahmaan