Friday, 27 July 2012

The Quran on Fresh and Salty water

Modern science has discovered that in estuaries, where fresh (sweet) and salt water meet, the situation is somewhat different from what is found in places where two seas meet. It has been discovered that what distinguishes fresh water from salt water in estuaries is a “pycnocline zone with a marked density discontinuity separating the two layers.” This partition (zone of separation) has a different salinity from the fresh water and from the salt water.

Let's see what ALLAH has said about this in Quran:

"He is the one who has set free the two kinds of water, one sweet and palatable, and the other salty and bitter. And He has made between them a barrier and a forbidding partition. "
(Qur’an, 25:53)

Longitudinal section showing salinity (parts per thousand ‰) in an estuary.  We can see here the partition (zone of separation) between the fresh and the salt water. (Introductory Oceanography, Thurman, p. 301, with a slight enhancement.)

This information has been discovered only recently, using advanced equipment to measure temperature,  salinity, density, oxygen dissolubility, etc. The human eye cannot see the division of water in estuaries into the three kinds: fresh water, salt water, and the partition (zone of separation).

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