The Quran on Clouds

Scientists have studied cloud types and have realized that rain clouds are formed and shaped according to definite systems and certain steps connected with certain types of wind and clouds.
One kind of rain cloud is the cumulonimbus cloud.  Meteorologists have studied how cumulonimbus clouds are formed and how they produce rain, hail, and lightning.

They have found that cumulonimbus clouds go through the following steps to produce rain:

1)  The clouds are pushed by the wind: Cumulonimbus clouds begin to form when wind pushes some small pieces of clouds (cumulus clouds) to an area where these clouds converge (see figures 17 and 18).

Figure 17: Satellite photo showing the clouds moving towards the convergence areas B, C, and D.  The arrows indicate the directions of the wind. (The Use of Satellite Pictures in Weather Analysis and Forecasting, Anderson and others, p. 188.)  (Click on the image to enlarge it.)

Figure 18: Small pieces of clouds (cumulus clouds) moving towards a convergence zone near the horizon, where we can see a large cumulonimbus cloud. (Clouds and Storms, Ludlam, plate 7.4.)   (Click on the image to enlarge it.)

2)  Joining: Then the small clouds join together forming a larger cloud (see figures 18 and 19).

Figure 19: (A) Isolated small pieces of clouds (cumulus clouds).  (B) When the small clouds join together, updrafts within the larger cloud increase, so the cloud is stacked up.  Water drops are indicated by ·. (The Atmosphere, Anthes and others, p. 269.)  (Click on the image to enlarge it.)

3)  Stacking: When the small clouds join together, updrafts within the larger cloud increase.  The updrafts near the center of the cloud are stronger than those near the edges.  These updrafts cause the cloud body to grow vertically, so the cloud is stacked up (see figures 19 (B), 20, and 21).  This vertical growth causes the cloud body to stretch into cooler regions of the atmosphere, where drops of water and hail formulate and begin to grow larger and larger.  When these drops of water and hail become too heavy for the updrafts to support them, they begin to fall from the cloud as rain, hail, etc.

Figure 20: A cumulonimbus cloud.  After the cloud is stacked up, rain comes out of it. (Weather and Climate, Bodin, p.123.)

 Figure 21: A cumulonimbus cloud. (A Colour Guide to Clouds, Scorer and Wexler, p. 23.)

God has said in the Quran:

 Have you not seen how God makes the clouds move gently, then joins them together, then makes them into a stack, and then you see the rain come out of it....  (Quran, 24:43)

Meteorologists have only recently come to know these details of cloud formation, structure, and function by using advanced equipment like planes, satellites, computers, balloons, and other equipment, to study wind and its direction, to measure humidity and its variations, and to determine the levels and variations of atmospheric pressure.

The preceding verse, after mentioning clouds and rain, speaks about hail and lightning:

 ....And He sends down hail from mountains (clouds) in the sky, and He strikes with it whomever He wills, and turns it from whomever He wills. The vivid flash of its lightning nearly blinds the sight.  (Quran, 24:43)

Meteorologists have found that these cumulonimbus clouds, that shower hail, reach a height of 25,000 to 30,000 ft (4.7 to 5.7 miles), like mountains, as the Quran said, “...And He sends down hail from mountains (clouds) in the sky...” (see figure 21 above).

This verse may raise a question.  Why does the verse say “its lightning” in a reference to the hail?  Does this mean that hail is the major factor in producing lightning?  Let us see what the book entitled Meteorology Today says about this.  It says that a cloud becomes electrified as hail falls through a region in the cloud of supercooled droplets and ice crystals.  As liquid droplets collide with a hailstone, they freeze on contact and release latent heat.  This keeps the surface of the hailstone warmer than that of the surrounding ice crystals.  When the hailstone comes in contact with an ice crystal, an important phenomenon occurs: electrons flow from the colder object toward the warmer object.  Hence, the hailstone becomes negatively charged.  The same effect occurs when supercooled droplets come in contact with a hailstone and tiny splinters of positively charged ice break off.  These lighter positively charged particles are then carried to the upper part of the cloud by updrafts.  The hail, left with a negative charge, falls towards the bottom of the cloud, thus the lower part of the cloud becomes negatively charged.  These negative charges are then discharged as lightning.  We conclude from this that hail is the major factor in producing lightning.

This information on lightning was discovered recently.  Until 1600 AD, Aristotle’s ideas on meteorology were dominant.  For example, he said that the atmosphere contains two kinds of exhalation, moist and dry.  He also said that thunder is the sound of the collision of the dry exhalation with the neighboring clouds, and lightning is the inflaming and burning of the dry exhalation with a thin and faint fire.  These are some of the ideas on meteorology that were dominant at the time of the Quran’s revelation, fourteen centuries ago.

The source of this article is islam-guide

The Quran on Deep Seas and Internal Waves

God has said in the Quran:
 Or (the unbelievers’ state) is like the darkness in a deep sea.  It is covered by waves, above which are waves, above which are clouds.  Darknesses, one above another.  If a man stretches out his hand, he cannot see it....  (Quran, 24:40)
This verse mentions the darkness found in deep seas and oceans, where if a man stretches out his hand, he cannot see it.  The darkness in deep seas and oceans is found around a depth of 200 meters and below.  At this depth, there is almost no light (see figure 15).  Below a depth of 1000 meters there is no light at all.  Human beings are not able to dive more than forty meters without the aid of submarines or special equipment.  Human beings cannot survive unaided in the deep dark part of the oceans, such as at a depth of 200 meters.

Figure 15: Between 3 and 30 percent of the sunlight is reflected at the sea surface.  Then almost all of the seven colors of the light spectrum are absorbed one after another in the first 200 meters, except the blue light. (Oceans, Elder and Pernetta, p. 27.)

Scientists have recently discovered this darkness by means of special equipment and submarines that have enabled them to dive into the depths of the oceans.

We can also understand from the following sentences in the previous verse, “...in a deep sea.  It is covered by waves, above which are waves, above which are clouds....”, that the deep waters of seas and oceans are covered by waves, and above these waves are other waves.  It is clear that the second set of waves are the surface waves that we see, because the verse mentions that above the second waves there are clouds.  But what about the first waves?  Scientists have recently discovered that there are internal waves which “occur on density interfaces between layers of different densities.”(see figure 16).

Figure 16: Internal waves at interface between two layers of water of different densities.  One is dense (the lower one), the other one is less dense (the upper one). (Oceanography, Gross, p. 204.)

The internal waves cover the deep waters of seas and oceans because the deep waters have a higher density than the waters above them.  Internal waves act like surface waves.  They can also break, just like surface waves.  Internal waves cannot be seen by the human eye, but they can be detected by studying temperature or salinity changes at a given location.

The source of this article is islam-guide

The Quran on Seas and Rivers

Modern Science has discovered that in the places where two different seas meet, there is a barrier between them.  This barrier divides the two seas so that each sea has its own temperature, salinity, and density.  For example, Mediterranean sea water is warm, saline, and less dense, compared to Atlantic ocean water.  When Mediterranean sea water enters the Atlantic over the Gibraltar sill, it moves several hundred kilometers into the Atlantic at a depth of about 1000 meters with its own warm, saline, and less dense characteristics.  The Mediterranean water stabilizes at this depth (see figure 13).

Figure 13: The Mediterranean sea water as it enters the Atlantic over the Gibraltar sill with its own warm, saline, and less dense characteristics, because of the barrier that distinguishes between them.  Temperatures are in degrees Celsius (C°). (Marine Geology, Kuenen, p. 43, with a slight enhancement.)  (Click on the image to enlarge it.)

Although there are large waves, strong currents, and tides in these seas, they do not mix or transgress this barrier.

The Holy Quran mentioned that there is a barrier between two seas that meet and that they do not transgress.  God has said:

 He has set free the two seas meeting together.  There is a barrier between them.  They do not transgress.  (Quran, 55:19-20)

But when the Quran speaks about the divider between fresh and salt water, it mentions the existence of “a forbidding partition” with the barrier.  God has said in the 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.  (Quran, 25:53)

One may ask, why did the Quran mention the partition when speaking about the divider between fresh and salt water, but did not mention it when speaking about the divider between the two seas?

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 (see figure 14).

Figure 14: 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.)  (Click on the image to enlarge it.)

This information has been discovered only recently, using advanced equipment to measure temperature, salinity, density, oxygen dissolubility, etc.  The human eye cannot see the difference between the two seas that meet, rather the two seas appear to us as one homogeneous sea.  Likewise, 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).

 The source of this article is islam-guide

The Qur'an and Mountain

A book entitled "Earth" is considered a basic reference text in many universities around the world. One of the authors of this book is Frank Press. He is currently the President of the Academy of Sciences in the USA. Previously, he was the science adviser to former USA President Jimmy Carter. His book says that mountains have underlying roots. These roots are deeply embedded in the ground, thus,  mountains have a shape like a peg (see figures 7, 8, and 9)..

                                                  

Figure 7: Mountains have deep roots under the surface of the ground. (Earth, Press and Siever, p. 413.)

 Figure 8: Schematic section.  The mountains, like pegs, have deep roots embedded in the ground. (Anatomy of the Earth, Cailleux, p. 220.)  (Click on the image to enlarge it.)

Figure 9: Another illustration shows how the mountains are peg-like in shape, due to their deep roots. (Earth Science, Tarbuck and Lutgens, p. 158.)  (Click on the image to enlarge it.) 

This is how the Quran described mountains. God said in the Quran:
“Have We not made the earth as a bed, and the mountains as pegs?”  [Noble Quran 78:6-7]
Modern earth sciences have proven that mountains have deep roots under the surface of the ground and that these roots can reach several times their elevations above the surface of the ground. So the suitable word to describe mountains on the basis of this information is the word 'peg', since most of a properly set peg is hidden under the surface of the ground.
The history of science tells us that the theory of mountains having deep roots was introduced only in the latter half of the nineteenth century. Mountains also play an important role in stabilizing the crust of the earth. They hinder the shaking of the earth. God said in the Quran:
"And He has set firm mountains in the earth so that it would not shake with you.."[Noble Quran 16:15]
Likewise the modern theory of plate tectonics holds that mountains work as stabilizers for the earth. This knowledge about the role of mountains as stabilizers for the earth has just begun to be understood in the framework of plate tectonics since the late 1960's.

Could anyone during the time of the prophet Muhammad (peace be upon him) have known of the true shape of mountains? Could any one imagine that the solid massive mountain which he sees before him, actually extends deep into the earth and has a root, as scientists assert? A large number of books of geology when discussing mountains, only describe that part which is above the surface of the earth. This is because these books were not written by specialists in geology. However, modern geology has confirmed the truth of the Quran's verses.

The source of this article is islam-guide