The foot is a limb that is not given much importance when compared to other vital organs such as the brain or heart. However, the foot is a very complex mechanical structure that is made of 26 bones, 33 joints, and more than 100 muscles and ligaments. About a quarter of the bones in the human body and about a fifth of the joints are found in our two feet. That is why Leonardo da Vinci described the human foot as an engineering and artistic masterpiece.

A healthy person takes about 5,000 steps a day. Given a life of eighty years, a person takes about 150 million steps throughout their life. Assuming that each step is 75 cm, a person walks about 110,000 kilometers throughout his life. This corresponds to walking around the equator about 3 times. Apart from that, a typical person stands for around 2-4 hours a day. During all these activities, the human foot carries the entire body’s weight. In standing position, body weight is supported by two feet while activities such as walking and running are done by only one foot for a certain period of time. While standing, the feet carry 100% of their body weight, while walking, this rate rises up to 150%. While walking, the foot that needs to be lifted from the ground approaches the ground again with an acceleration in the same direction as gravity. Therefore, the impact force at the moment the foot touches the ground corresponds to 150% of a person’s body weight. In cases of severe effects such as running and jumping, this force easily increases up to 5 times the body weight and up to 10 times in some people. For a person weighing 70 kilograms, this force can be 105 kg (or about 1050 Newton) in walking, and easily 350 kg (or about 3500 Newton) in running or jumping. Assuming that a person walking for an hour takes 5,000 steps, the foot pulls a total of about 500 tons of load (5,000 steps x 105 kg). In running, this figure will increase approximately three times.

The foot has been created with a wonderful mechanical and construction design that is able to consistently sustain such high loads. The bones and muscles of the foot add two different belt designs to it. One of them, the structure called the longitudinal belt starts from the heel bone (calcaneus) and ends with its metatarsal bones (Figure 1). Some researchers claim that the long arch is divided into two parts as the inner (medial arch) and the outer arch (lateral arch). However, both structures resemble bridges built in arches. The second arch on the foot is called the transverse arch. This belt is perpendicular to the long belt from the right side of the foot to the left side and is shorter in length (Figure 2).

Therefore, the foot is a marvelous structure consisting of roughly two arches. This structure of the foot can be compared to arch bridges or a dam. The arch structure is known as the strongest structure against steep loads in construction areas due to the robustness of the designs against compression forces in cases of vertical loading. Therefore, hydroelectric dams are constructed in the form of arches or arcs in order to make the most resistant model against hydrostatic pressure.

The arch structure of the foot is very flexible and can also move up and down like a car suspension and acts as a shock absorption. If there was no such structure on the foot, the impact forces during walking and running activities would be higher and cause chronic foot pain. The flatfoot complication is a result of a damage in the arch structure in the foot which comes from birth or develops afterwards. Flatfoot patients are often unable to perform long-term activities and experience foot pain as well as complications in other organs of the body.

Our feet’s arch structure is not the only factor involved in shock absorption that is designed against mechanical forces. The layer of fat on the bottom of the foot also contributes to this process. In a healthy person, this fat layer, which has a height of 2.5 cm under the heel, drops to 5-7 mm in the front part of the foot. It also helps to distribute the vertical and horizontal forces caused by standing or walking evenly on the sole of the foot. At the same time, it serves as a source of heat insulation and helps protect our feet from hot or cold surfaces. In some diseases such as diabetes, in which this fat layer melts or decreases, wounds called foot ulcers can develop because the shock absorption and load distribution get damaged. Mechanical pressure is calculated by dividing the amount of mechanical force by the surface area on which it is applied, meaning that smaller surfaces areas are subjected to more pressure. This is why very tiny needles, despite weighing almost nothing, can pierce our skin and cause pain. Similarly, damage to the fat layer under the foot causes the forces applied under the foot to act on a limited surface area. For example, the reduction of fat in the area just below the heads of the metatarsal bones reduces the “cushioning” effect in this area and causes a pressure in high values. This extra pressure can cause tissue damage along with the aforementioned foot ulcers.

Such a situation that will cause pain in a normal person cannot be felt by many diabetics. If diabetes is not well controlled, neuropathy or a “lack of feeling” may occur as a complication. Dead nerve cells become unable to feel pain which can result in people not knowing about harm that is being done to their body. Diabetic patients who develop neuropathy would not feel fatty layer damage and accompanying high pressure values whereas a typical person normally would. Untreated foot ulcers can become infected and can turn into gangrene. Since the gangrenous foot has to be cut, diabetes unfortunately causes a large number of amputations. Such amputations are sadly quite frequent throughout the world due to diabetic neuropathy. Dr. Paul Brand, who studied diabetic foot ulcers, defined pain as a gift from God that no one wanted. Sometimes, what we do not like might be better for us (Qur’an 2:216); likewise, pain can cause a lot of trouble to people but it can also alert us of dangers and harm to our bodies.

Thus, foot care is very important in diabetics. The following three actions are recommended to patients; daily inspection of the foot; daily washing; and control of the inside of the shoes. The pest, pebble, or similar hard object in the shoe that can be very harmful for diabetics with loss of sensation would be removed this way. On the other hand, when such a hard object remains in the shoes, patients may step on them repeatedly without feeling it which will likely lead to an ulcer case.

With its pain that works like a health alarm, extraordinary mechanical loads it carries, heat insulation and shock absorbing features, the human foot is a wonder of art that calls for contemplation.

While wandering near a creek, have you ever seen bugs walking on the surface of the water? Have you felt any resistance when you hit the surface of the sea with your palm? Have you ever thought about what causes these to happen?

The two examples of events given above happen to be related to “surface tension.” This situation is described as the force per distance unit that is generated in the opposite direction of the direction of expansion between two different surfaces. It can take place in between two different liquid layers, as well as among liquid-gas and liquid-solid layers. For example, the surface tension of a liquid forms in the transitional region where liquid and gas molecules make contact. The source of this force generated on the liquid’s surface is the intermolecular attractions that hold the liquid molecules together. Each molecule in the liquid is pulled via opposite but equal forces by neighboring molecules, thus no single force is acting on the molecules. However, the molecules on the surface are only surrounded by one side, therefore they are pulled inwards with a net force (Figure 1), causing a tension similar to an inflated balloon on the surface of the liquid.

When we look carefully to a stagnant pool of water in a container, the surface of the water seems to be covered with a thin layer of film, resembling a stretched membrane. In order for a substance to enter or leave the body of water successfully, it must puncture this membrane. In other words it has to overcome this intermolecular force. If a steel blade is laid horizontally on the surface of the water slowly, it floats despite that it is made of denser steel because it cannot overcome this surface tension. Surface tension is the principle responsible for the trampoline-like behavior of liquid surfaces. Many insect species created for aqueous habitats can maintain their lives on the water via their adapted leg parts. The best example of this is the water strider. This insect lives on water by taking advantage of water surface tension. Though the surface tension principle is a requirement to be on the water, it is also necessary that the strider not to stick to the surface. Therefore, this insect is also equipped with a paddle made of waxy hairs at the end of their legs (Figure 2).

Forces of cohesion and adhesion

The intermolecular force of a liquid among the same kind of molecules is called the “cohesion force,” and intermolecular attraction between different types of liquid molecules is called the “adhesion force.” These forces of adhesion and cohesion determine the behavior of a liquid in a container. If some mercury is put in a glass tube, because the cohesive forces among the mercury atoms is greater than the adhesive forces in between the glass container and the mercury, the mercury assumes a convex shape. Here, mercury has a tendency to reduce its contact with the glass and does not wet it. In contrast to mercury, when water is put inside the tube, the surface layer between the water and air takes an inward concave shape. This is caused by the greater adhesion force between the water and glass compared to the intermolecular cohesion forces of water. Water wets the glass since it has a tendency to spread towards the greatest surface possible (Figure 3).

When there is a thin layer of water or tea left in between a tea glass and its plate, the adhesion force glues the glass and plate together. Since the adhesion force is greater than the weight of the plate, the glass cup can be lifted together with the plate. Contact lenses also stay in position on the eyes without falling through the help of adhesion forces. Tears strongly pull both cornea and the contact lens together, holding it in place.

The capillary effect

A liquid inside a thin vertical tube is pulled upwards by the inner surface of the tube until the adhesion force becomes balanced with the liquid weight. This event is called the capillary effect or capillarity. Liquids naturally rise in narrow channels if there is sufficient adhesion force. This effect is enhanced in narrow tubes due to the smaller volume of the liquid, but reduced in wider tubes because of gravity. Therefore, there is an inverse ratio between the channel diameter and liquid height in capillarity.

The reason a sponge absorbs water effectively is the easy rise of water in the capillary openings of the sponge. In a similar fashion, there are small openings found in paper napkins and towels. When a napkin makes contact with a wet surface, water is pulled inside the small openings with capillary action, thus removing the water from the surface. This is because the adhesion force in between the napkin tissue and water is greater than the cohesion force of the water molecules. This principle is also utilized while getting blood samples with capillary tubes. In addition, the removal of continuously excreted tears by the capillary ocular ducts that extend into the nasal cavity is another example of this wise law.

Capillary action is also important for the transportation of water molecules from humid parts towards drier areas in soil, providing for the spread of water. The same principle is also vital to nourishment of trees. Every part of a tree encompasses capillary channels, all the way from the tips of the roots to very ends of the branches. Water molecules are transported to the leaves against gravity when they enter the tips of these capillary channels at the roots. Even though the adhesion forces between the water molecules and the root’s tissues win the war against gravity, at a certain height, this force becomes equal to the gravitational pull, thus not allowing water molecules to climb higher. This is the ultimate height a tree reaches. Capillarity also affects internal water pressure of a tree, leaf size, photosynthesis, and other factors. This is why the leaves of a tree are usually bigger on lower branches compared to higher ones (Figure 4).

The surface tension of water is the highest among the known values of other liquids and this has very significant biological effects. If the surface tension of water was to be lower, like other liquids, it would not be able reach the higher parts of plants through capillary action, thus preventing the survival of taller plants. The vegetation waits patiently as nourishment is delivered to its roots. Water has been assigned a vital role in this service.

The water-dependent survival of plants is made possible through the capillarity and surface tension. Could this amazing phenomenon, in which the capillarity is on duty to water the leaves on the highest branches of the tallest trees to ensure the maintenance of life, take place via blind atomic interactions or accidental occurrences?

How do liquid droplets get their shape?

Objects with a wider surface will have a greater surface tension. Since the force of surface tension, acting on per unit distance, is equal to the surface energy per surface area, a wider surface requires greater accumulation of energy on the surface. All the matter in the universe tends to stay at a lowered energy level. Therefore, it is ideal for objects to reduce their surface area. When the surface area to volume ratio of the known geometric shapes is investigated, the smallest ratio is found to belong to a sphere. A small value of this ratio means the most reduced surface area per volume. Among enclosed containers of equal volume, a sphere is also the one with the smallest surface area. When two equal volume watermelons of spherical and cubical shape are peeled, the spherical one will produce the least amount of rinds.

Because of the reasons mentioned above, liquids take a droplet shape immediately when they fall, reducing their surface area. That is why a water droplet dripping from a faucet, a falling rain drop, and a droplet on a leaf are all in the shape of a sphere (Figure 5). It is the same principle that makes planets and other heavenly bodies resemble a globular form. This indeed points to an Almighty Power who plans the motions, positions, and assignments of all the objects, from particles to giants, managing and dispatching them as The Self-Existent One holding everything together.

Factors affecting surface tension

Temperature increase is directly proportional to a decrease in the surface tension in most liquids. When the temperature of a liquid rises, so does the kinetic energy of the particles in it, making these particles move faster. This leads to a weakened intermolecular attraction that binds molecules together. Since this change affects the particles at the surface, it decreases the tension. Improved soaking of hands and laundry can be achieved with warm water during cleaning because heat reduces the surface tension. This helps with better cleaning results in a shorter amount of time.

In a similar fashion, soap and detergents also reduce the surface tension of water. If a small soap bubble is placed on a water droplet, the droplet spreads away instantly. This indeed tells us that the soap bubble reduces surface tension.

If a substance dissolves in a pure material, surface tension is found to change depending on the solute and the solvent structure. For example, salt decreases the surface tension of water. Salt weakens the intermolecular bonds of the water molecules, and therefore reduces the cohesion and surface tension. That’s why sea waves foam when they hit shore.

Can surface tension be associated with the ability of unconscious and primitive atoms as the principle behind many functions and tasks in the lives of plants and animals? Do such wondrous events happen by chance? Isn’t this principle such a blessing of the One who easily provides what is necessary to all living things, nourishing them in time according to their needs?

Before anasthesia, even routine surgeries were painful and dangerous. Its advent has allowed for amazing advances in public health and patient safety.

Humanity has faced various kinds of health problems throughout history, and will be facing them until the end of time. Even someone who has not yet suffered from an illness, will almost certainly suffer from one in the future. Let’s take a moment to reflect on all the people who are currently undergoing treatment at hospitals in the hopes of curing an illness.

From time to time we visit close friends and relatives who have undergone such operations. We wish them health and talk with them a little. We ask them how the operation felt, how many stitches they have. They usually say, “They injected me with something and I don’t remember the rest.” Then they may show us their gall bladder, wrapped in gauze, or their kidney stone, which was removed. Have you ever pondered how it is possible not to feel any pain during these kinds of operations, or how it is possible not to remember anything?

Surgical practices have advanced so much in present times. Heart, liver, and kidney transplants are now commonplace, as are finger and arm reattachments. Anesthesia, which makes all of these operations possible and painless, is a great blessing. Even the small and simple surgeries performed just 150 years ago were very difficult for surgeons – not to mention very painful for patients.

In his famous book on physiology and treatment, The Canon of Medicine the renowned 10th and 11th century scholar, Avicenna (Ibn-i Sina) (980-1037), defines anesthesia as, “a numbing and a cooling remedy.” He gives pathophysiological commentary on the influences of anesthetics and analgesics, and summarized painkilling methods as following:

1. A mixture prepared from linseed and dill should be applied to the area of pain.
2. Decreasing the sensitivity of the area of pain by increasing the moisture of the area, or providing narcotics for sleep.
3. Providing cooling and analgesic and anesthetic medicine.

Biruni, another Islamic scholar from the 11th century, documented his work with analgesic and anesthetic medicine. One of his writings recommends boiling the root tubers of henbane, Mandragora, horned poppy (Glaucium flavum), and Iris, together with the attar of roses and vinegar.

In his pharmacological works of the 12th and 13th centuries, Samarqandi recorded the analgesic, sedative (calming), anesthetic, and hypnotic effects of opium, mandragora, henbane, lettuce, beaver testicles, aloe vera, and coriander.

During the end of the 17th century, in Italy, anasthesia was performed by preventing the patients from breathing until they lost consciousness, and then immediately performing surgery on the patient who had fainted. This was called the asphyxia technique. The surgeries performed were relatively easy, such as the cutting of an arm or leg. The surgeon who was fast was considered the best, because patients could wake up during the surgery – that is, if they survived the procedure.

Another interesting anesthetic technique was making the patient lose consciousness by hitting them on the head. The hitting had to be done, “Hard enough to break the shell of an almond but gentle enough not to destroy its seed.” However, a bitter truth is that many patients were killed during this process.

Many have suffered the consequences of the absence of anesthesia in the past. Dr. Warren, a professor at Boston’s Massachusetts General Hospital in 1846, had placed his operating room on the very top floor of the hospital in order to avoid disturbing others with the screams of the suffering patients. One day, while examining one of patient’s tongues with pliers and a scalpel, he pulled the tongue of the patient without warning, and cut off his tongue with the scalpel. Afterwards, without hesitation, he cauterized his patient’s tongue with a hot iron. Dr. Warren observed the screaming, moaning, and suffering of the patients with no sign of emotion. He did not seem disturbed, and this was the exact attitude he needed in order to perform his duty. However, years later when enough advancement was done in the area of anesthesia, he couldn’t hold back his tears during the first operation that was performed with anesthesia.

Surgeries performed without anesthesia were hard on surgeon and patient alike. During his studies, the English gynecologist, Doctor James Young Simpson, fainted while cutting off a breast and considered quitting being a surgeon. Prof. Dr. Robert Liston was a famous surgeon at London University College. Dr. Liston had a reputation for being rude, arrogant, and strong. But he had no choice: he was forced to cut off a leg in 28 seconds, as anesthesia was not yet developed.

As can be seen from these examples, the absence of anesthesia, and the incredible suffering of the patients, pushed surgeons to be incredibly fast and emotionally insensitive. This period of time defined surgeons as strict, insensitive, and despotic. This went on until 1846, when William Thomas Morton performed the first surgery with anesthesia.

Since then, anesthesia has made surgeries much easier for all involved. Today, the definition of general anesthesia is total or partial loss of sensation in a human or animal body before surgical intervention.

Usually, anesthesia is performed by injecting medicine into the blood, or by making a patient breath an anesthetic gas. First, the patient loses consciousness, and then, with the help of muscle relaxants, the patient is put in a state of paralysis. Artificial respiration is performed until the end of the operation with the help of breathing machines called ventilators. For this purpose, an endotracheal tube is inserted in the windpipe of the patient and they are hooked to an anesthesia machine. This feeds oxygen, air, and the anesthetic gas to the patient. The anesthesia doctor controls the patient’s breathing, blood pressure, and heart rhythm, as well as other various, vital parameters, and the fluids that will be fed to the patient throughout the surgery. By doing this, the continuity of the anesthesia is made possible. When the surgery is over, the anesthetic drugs are no longer fed to the patient. When the muscle relaxants lose their effect and breathing returns to normal, the endotracheal tube is taken out and the patient is taken to another room to wake up. This is where the patient opens their eyes; it’s almost like a re-birth.

The chemicals in cannabis, opium, and coca were the essence of the first drugs used for general anesthesia; they are still being used, partially, in modern times. These chemicals, and some synthetic chemicals like them, are used for anesthesia and can be used after surgery in order to soothe pain. Most of our contemporary drugs are mostly synthetic, and they require many years of difficult education to be properly handled. It takes four years of additional education, after medical school, for a surgeon to become proficient with anesthetics.

Medical research done in the last two centuries about the dosage and quantity of these chemicals has advanced the practice of anesthesia incredibly. All this research provides a very good answer to why drugs have been created. While surgeons use the chemicals extracted from cannabis, opium, and coca, and from the synthetic chemicals like them, as a service to humanity, it is really hard to understand why some ill intentioned people use them for the detriment of human health.

Why is this surface area so large? What could the wisdom behind it be? Tiny endoplasmic canals play a role in inner cell transportation and distribution of matter. ER is the organized industry district in the cell. Most of the factories of molecules produced by chemical reactions are found here. ER is the production spot in the cells of proteins and hormones. Consequently, a broad surface area is very necessary and important.

Different degrees (pH) of acid are necessary for each reaction. However, because the acid necessary for one reaction can negatively affect the other reactions, thousands of opposite, intricate and different reactions take place. For this reason, membrane surface areas need to be wide. Sometimes hundreds of protein molecules are produced in just a second in a cell. The rapid and flawless lining up side-by-side of tens, hundreds or thousands of amino acids can only be achieved with a knowledge and power that surpasses these very small structures.

Wrapping the inside of the cell like a web and forming a buffer against mechanical effects, ER is responsible for establishing the flexibility and soundness of the cell. In muscle cells, ER takes the name Sarcoplasmic Reticulum (SR), which has a very important duty in the contraction of muscles. The size of the surface area of SR in the muscles of the structural frame is proportionate to the speed of muscle contraction. Consequently, there is more SR in muscle cells where there is rapid contraction. SR also serves as a calcium depot in muscle cells. Normally calcium is a deadly poison for the cell, and for this reason it is kept out of the cell. The concentration of calcium outside the cell is 10,000 times more than it is inside the cell. However, SR stores calcium in the cell in its own body. Thus, it both prevents the cell from being harmed and it provides the necessary calcium for contraction.

ER has the duty of eliminating the poison in the liver cells from the body by means of gall. For example, jaundice-causing bilirubin is a deadly poison for the brain especially in newborn babies. If jaundice is not treated, motor loss (paralysis) and intelligence loss can result from brain damage. Bilirubin and glucuronic acid combine by means of some enzymes on the surface of ER in the liver and are thrown into the gall bladder. In this way ER plays an important role in making foreign matter harmless and in reducing the side affects of medications to a minimum. Babies’ sensitivity to some medications during the first three months of life is due to ER’s not yet being developed enough to eliminate their harmful effects.

If it is taken into consideration that all of these mechanisms exist in human, animal and plant cells, it can be clearly seen that a broad and complex structure in such a small volume and its many functions can only have been placed there by the All-Powerful whose knowledge, wisdom, artistry, will and power permeate every moment and every spot.

Celaloglu is a freelance writer from Turkey with a degree in biology.

Until today, almost all of your organs and systems introduced themselves and explained the great artistry in their creation along with their wisdom and precision. Certainly, these were not just for your information. Of course, it is important for you to know about your organs and their duties, and for you to live accordingly with this knowledge. However, its main purpose has been to introduce you to your Lord, who created you and all living and nonliving things perfectly. Just like seeing a work of art and not appreciating the artist is a twisted view, so is seeing the art exhibited on the body of the world’s most dignified entity, the human being, and not appreciating our Lord. It would just be a worthless and pointless heap of knowledge.

Today, we will look at the human body statistically, have our last lesson, and say goodbye.

Before we talk about the systems and organs that make up your body, you should know that it is a blessing that God didn’t leave you in nonexistence, and put you into existence. Then, you should know that it is also a blessing that He didn’t leave you as inorganic molecules, but created you as a living organism. For you to understand better, I would like you to look carefully at the delicate measures of the numbers I will give you in the tables below and to realize how high your value has been lifted.

The weights and percentages of inorganic elements in a 70 kg human body:

Oxygen…….. 44 kg……. 63%
Carbon……. 14 kg……. 20%
Hydrogen……. 7 kg……. 10%
Nitrogen……. 2.1 kg……. 3%
Calcium……. 1 kg……. 1.5%
Phosphorus……. 700 g……. 1%
Potassium……. 170 g……. 0.25%
Sulfur….. 140 g……. 0,2%
Chlorine……. 70 g……. 0.1%
Sodium….. 70 g……. 0.1%
Magnesium.. 30 g……. 0.04%
Iron…… 3 g……. 0.004%
Copper…… 300 mg……. 0.0005%
Manganese….. 100 mg……. 0.0002%
Iodine……. 30 mg……. 0.00004%

The total percentage of trace elements found in the blood serum and in enzymes, such as zinc, cobalt, cadmium, molybdenum, nickel, lead, fluorine, selenium, mercury, and aluminum, is 0.80526%.

As you can see, 76% of you (53.1 kg of oxygen, hydrogen, and nitrogen) are gases that dissolve into the air. These aren’t worth anything because there are plenty of them in the air. From 14 cents per kilogram, 14 kilograms of carbon (coal) is worth around 2 dollars. One kilogram calcium (lime) is worth around 12 cents. 140 grams of chlorine and sodium together (salt) is worth around 3 cents. All of the other elements (such as iron, copper, and magnesium) are worth a handful of soil, because they are found easily in soil, and there is only very little of them in the human body. So in total, your elements are worth $2.15.

Let’s increase your value a little bit! Our Lord didn’t leave you as elements; He turned you into organic material with very large molecules, such as protein, fat, carbohydrates, and vitamins. That gives us the table below:
Organ…. Water (%) …. Fat (%)…… Protein (%)…. Ash (%)
Skin…… 64.68…… 13.00…… 22.10…… 0.68
Skeleton…… 31.81…… 17.18…… 18.93…… 28.91
Teeth…… 5.00…… 0.00…… 23.00…… 70.90
Skeletal muscle…… 79.52…… 3.35…… 16.50…… 0.93
Brain-Spinal cord…… 73.33…… 12.68…… 12.06…… 1.37
Liver…… 71.46…… 10.35…… 16.19…… 0.88
Heart…… 73.69…… 9.26…… 15.88…… 0.80
Lungs…… 83.74…… 1.54…… 13.38…… 0.95
Spleen…… 78.69…… 1.19…… 17.81…… 1.13
Kidneys…… 79.47…… 4.01…… 14.69…… 0.96
Pancreas…… 73.08…… 13.08…… 12.69…… 0.93
Intestines…… 79.07…… 6.24…… 13.19…… 0.86
Adipose tissue…… 50.09….. 42.44…… 7.06…… 0.51
Other tissues…… 70.40…… 12.39…… 16.06…… 1.01
Blood and lymph…… 93.33…… 0.17…… 5.68…… 0.94
Total…… 67.85…… 12.51…… 14.39…… 4.84

If you wonder about your value as water, protein, fat, and ash, you can calculate it according to a 70 kg person. If you do this, you can see that you are made up of 47.495 kilograms of water, 8.757 kg fat, 10.073 kg protein and 3.388 kg ash (mineral salts). Since the water in you is dirty and not clear, it isn’t worth anything. Your minerals and ash aren’t worth anything because there are plenty of them in soil. For $1.42 per kilogram, your fat is worth around $12.86. Your protein is worth around 16 kilograms of lamb, which costs around $36.57. So when you are elevated from elemental material to organic material, your value rises up to around $50.

Of course, our Lord didn’t leave you like this. He created you in the form of organs and tissues, which carry out miraculous tasks so that you can stay alive. Now, let’s see the groups of trillions of differentiated cells:

Total number of cells in the human body………… around 100 trillion
Number of cells that die in one second…………around 50 million
Number of cells created in one second…………around 50 million
Number of cell types…………more than 200
Number of red blood cells in 5 liters of blood…………25 trillion
Height reached by putting all of our red blood cells on top of each other…………around 60.000 km
Length reached by putting all of our red blood cells side by side…………192.500 km
Red blood cells’ surface area………..more than 1000 m2
Number of white blood cells (leucocytes) in our blood…………40 billion
Number of nerve cells…………30 billion
Length of a sperm…………35 micrometers
Diameter of an egg cell…………100-120 micrometers
Average length of a liver cell…………30-50 micrometers
Lifespan of small intestine mucous cells…………1.4 days
Lifespan of stomach entrance area (cardia) mucous cells…………9.1 days
Lifespan of stomach exit area (pylorus) mucous cells…………1.8 days
Lifespan of epithelial cells in lung alveoli…………8.1 days
Lifespan of large intestine (colon) mucous cells…………10 days
Lifespan of upper skin (epidermis) cells…………19.2 days
Lifespan of covering epithelial cells in the bladder…………66.5 days
Lifespan of neutrophile leucocytes…………45 days
Lifespan of eosinophile leucocytes…………10 days
Lifespan of lymphocytes…………5 days to 1 year
Lifespan of monocytes…………months
Lifespan of red blood cells…………120 days
Number of times a red blood cell travels the body during its life…………300.000
Number of red blood cells generated in a second…………2.4 million
Number of red blood cells generated in a day…………208 billion
Lifespan of a liver cell…………222 days
Lifespan of a kidney cell…………286 days
Number of mitochondria (power plant) in a nerve cell…………up to 10.000
Number of ribosomes created in a liver cell in one second…………180
Total length of the DNA in one cell…………2 m
Number of muscles in the body…………around 600
Number of muscles that work when smiling…………15
Number of muscles that work when frowning…………43
Total amount of work done by our muscles in one day
(Equal to lifting a 6 ton truck 50 meters into the air with a crane)…………around 3.106 Newtons
Total number of capillaries…………30 billion
Number of alveoli in the lungs…………400 million
Total amount of air taken in by the lungs in one day……………around 10.000 liters
Total amount of air we use in 75 years…………around 285 million liters
Total length of the nephrons in the kidney…………around 50 km
Total length of the glomerulus capillaries in the kidney…………around 25 km
Total inner surface area of the kidney channels…………20 m2
Total filtration area of the Bowman capsules in the kidney…………1 m2
Total skin weight…………11.15 kg
Total surface area of the skin…………1.5-1.8 m2
Total length of capillaries in 1 cm2 of skin…………around 1 m
Weight of dead keratin cells that fall off the skin in one day…………10 gr
Length of the nerve fibers in the skin…………80 km
Number of sweat glands…………around 2 million
Number of sebaceous glands in the skin on the head…………around 120.000
Total number of cells in the skin…………around 100 billion
Number of sensory receptors in the skin…………around 60 million
Daily sweat amount…………800 ml
Maximum daily sweat amount…………18 liters
Number of cells in the retina…………127 million
Number of values of the same color our eye can distinguish…………around 200
Number of shades of light that we can perceive…………around 500

The reason I gave all these numbers was not just to show the multitude of cells, organs, and tissues, but to emphasize that our Lord can create these with the precision that He creates a single cell. Mammals also have the organs and tissues that I have mentioned. Besides, some mammals have different organs with superior aspects. From this point of view, we are not much different from a cow or a horse. However, our Lord says that He created us in the best form possible, equipped us with superior qualities, and granted us the authority over all creation. Dear Peter! It’s time that you shed out of being an animal and rise to the degree of humanity. You cannot do this with your cells, organs, or tissues, but by gaining knowledge of divinity via spiritual virtues (such as the mind, conscience, and free will) that our Lord gave you.

If we see our body as a palace, could the stones, glass, porcelain, and wood come together and say, “Come on let’s make a palace, which will be the greatest palace in the world.” Could elements first turn into organic matter with macromolecules, then into cell organelles, then into cells, and finally into cells with different special duties, all on their own?

Finally, I believe it will be useful to give a table that shows every organ’s share in your body. My advice is not to evaluate anything materially. You cannot live without your pancreas, which only takes up a very small part of your body. Your heart, which is only 0.7% of your body, pumps the water of life (blood) to all of your organs; and your brain, which is 3.5%, manages your whole body. You can never give up on your kidneys, which take up only 0.5%.

Percentages of organ weights to the total body weight
Skeletal muscle (red meat)…………31.56 %
Skeleton and teeth…………14.90 %
Adipose tissue…………13.63 %
Skin…………7.81 %
Blood and lymph…………3.77 %
Lungs…………4.15 %
Brain and spinal cord…………3.52 %
Liver…………3.41 %
Intestines and stomach…………2.07 %
Kidneys…………0.51 %
Heart…………0.69 %
Spleen…………0.19 %
Pancreas…………0.16 %
Cartilage, ligaments, blood vessels and peripheral nerves…………13.63 %

All in all, we can say that the human body has holistic perfection with its functional parts, from hair to nail, to intestines and kidneys, as well as its aesthetic beauty.

Dear Peter! We have talked with you for a long time. I hope it was useful. I did everything I could. I am sorry that I couldn’t portray your true value!

The Aral crisis is the best example of an ecological problem with serious social and economic consequences, directly or indirectly connected with all the states of Central Asia. The critical situation caused by the Aral Sea drying off was the result of agrarian economy tendency on the basis of irrigated agriculture development and volume growth of irrevocable water consumption for irrigation.

The Aral Sea was once the fourth biggest inland sea of the world, located between Kazakhstan and Uzbekistan (formerly in the Soviet Union). It moderated the inland climate for many centuries through water evaporation, which gave life to the surrounding deserts of Central Asia. The Aral Sea also was inhabited by more than one hundred fish species and supported productive fishing industries. Some fifty years ago the Aral Sea was surrounded by prosperous fishing towns like Moynaq.

The water area of Aral has periodically expanded and contracted in the course of history. These changes have affected the climate and the state of the region and led to important migrations in history. In spite of the massive glacier melting in the North and South Pole because of global warming, which would be expected to increase the level of inland waters, the Aral is rapidly losing its water. Because of poor environmental planning and the negligence of humans, the Aral Sea is now dying and according to the experts it will disappear in less than ten years.

The Aral Sea started to dry off in the early twentieth century. In 1918 Lenin decided that the only two water supplies of the Aral, the River Amu and the River Syr should be diverted for irrigation of the desert to increase land for agriculture. The idea was to boost agriculture, and this worked for a short period of time. The Soviets or Uzbekistan became the world’s largest exporter of cotton, which they referred to as white gold. The area of irrigated lands increased from 3 million hectares to 8 million. The population of the region increased from 7 million (1940) to 50 million (2000). At the initial stage of this project which seemed a brilliant idea at first sight, the irrigated land built up the economy of the Central Asian Soviet States and produced millions of jobs. Although, the result of the project was brief joy and success, the price of poor planning turned out to be by far too high.

First of all, the government had decided to grow cotton in a desert terrain. Cotton farming requires lots of water, which would not occur naturally in the desert. They also increased the production of other crops like water melons, cereal, and rice. Diverting the rivers cut the supply to the Aral Sea, and due to evaporation, it began to shrink. The first irrigation canals were initiated in the 1930s; however, these canals were poorly built, extremely inefficient, and wasted more than 50% of the water. Even today in Uzbekistan only 12% of canals are leakproof. The level of the sea has gone down constantly ever since; in the 1960s it became obvious that the sea level was falling; there was an average 20cm fall per year until the 1970s, when the fall became 50–60cm a year, and now it is 80–90cm a year. Especially in the period of 1960–1980 the diversion of water doubled, which reflected on cotton cropping as much as on the decreasing sea level.

The loss of water exposed the salty sea bed in the Southern Aral. Dust storms spread salty soil into the irrigated areas. Farmers tried to fight against salt contamination by flushing the soil with large volumes of water, which makes its way back to the sea. In addition, farmers used high levels of pesticides and fertilizers to increase the efficiency of crop production. However, these chemicals leave traces of nitrogen and other salts in high amounts in the soil. By flushing the soil with water to reduce salt levels, pesticides and fertilizers were also washed out and further polluted the sea.

Even more unsettling is that the Soviet government knew that they would lose the Aral Sea; in 1968 an expert said “it is obvious to everyone that the evaporation of the Aral Sea is inevitable”; and they also knew that fishing would be hit but the sad fact is that the government saw the Aral as an “error of nature.” The consequences of cutting the Aral’s water supplies and the irrigation of the desert were the beginnings of serious ecological and social problems in the 1960s. The sea was lost to fishing and transportation. This business of “killing nature” has not only affected the people living in the immediate vicinity of the sea. They did lose their jobs and they had to restart their lives, but the whole environment was affected too. Loss of water caused an increase in the overall salinity of the sea. Besides that, the bed of the sea, which held toxic chemicals and pesticides, was now revealed. The local drinking water is hence contaminated. The Aral was once the habitat of more than 120 unique species; now it has only thirty-eight. Being a heat reservoir, it had a cooling effect on the environment, but now the temperature can go above 120 degrees, winters still being harsh. Poisonous dust and salt storms take their toll. Infant mortality, tuberculosis, cancer and lung disease are thirty times higher than normal levels because the water is contaminated by fertilizers, pesticides and salt.

Currently the sea has lost more than 60% of its surface area and more than 80% of its volume; as of 2004 the salinity is 45g/l, normal value being 10g/l. While shrinking, it has split into two lakes, the North and South Aral Seas, now 95 miles away from Moynaq, leaving vast areas of salty desert behind. A BBC reporter said, “What appears to be snow on the seabed is really salt. The winds blow this as far as the Himalayas. The children of Moynaq have made a playground out of the wrecks of ships which might have provided food and a future for them.” The drying out of the Aral may lead to even more serious consequences in future if measures are not taken soon. First, increased temperatures may lead to the degradation of mountain glaciers. This could be highly dangerous for the region because the glaciers feed the River Amu and River Syr, and they are the only remaining storage for the supply of fresh water and moisture. Second, the Aral’s sea bed emits massive amounts of salt and dust into the atmosphere. Polluted air is carried over the area by a powerful air stream. Traces of pesticides and salt from the Aral region are now found in the blood of penguins in Antarctica. Moreover, the pollution affects areas thousands of miles away, such as the glaciers of Greenland and the forests of Norway.

In 2003 Kazakhstan decided to make this split permanent by building a dam (Kokaral Dike) between the northern and southern parts. The restoration effort focuses on the Northern Aral which is small and less polluted. This seals the fate of the Southern Aral, and is synonymous with its vanishing. The northern water supply, the River Syr has been restored and diverted back into the sea. Although it will not be the same again for sure, planners think that fishing will be rescued and the North Aral Sea will stabilize the climate by smoothing out the high and low temperature extremes and increasing rainfall. The efforts have helped to lower the salinity level which has even allowed the reintroduction of fishing in this area. The result is surprisingly encouraging. There are other proposals like diverting the Volga, Ob, and Irtysh rivers but this would be very costly and could cause yet another catastrophe.

This story has everything in it. Humans who disregard the ecosystem takes the gift in nature for granted. As we can see, however, nature is not infinite and it is breakable. Hundreds of years may pass until the region completely recovers. The magnitude of the disaster is comparable in scope to those of Hiroshima and Nagasaki, and might be even worse. This is a great example of short-term greed and ill-guided economic moves disregarding the whole ecosystem and bringing consequences which have to be dealt with in the long run. In this particular case, there could have been other ways to avoid the damaging decision to cut the water supply of the lake fully, such as relying on a different type of crop which requires less water, or making more efficient use of water, and so on.

This disaster is a single example of the type of global catastrophe we might encounter again in the future. This being so it should be kept in mind when we think of our future. A lot of the damage humankind causes might still be avoided if we act firmly and quickly. This is not just necessary for our grandchildren or our children but even for our own generation since the consequences of ecological destruction are being seen more rapidly now. The widely known global warming cannot be belittled, and, as the Aral Sea example might have taught us, the consequences can be terrible. It is likely that more such unpredicted events will afflict us. Added to this, there are water pollution, deforestation, and the destruction of wet-lands. Every day we hear or read about these consequences of negligence and greed. But these geographical features are all in perfect harmony, and we cannot rudely and unthinkingly destroy them. As Lester Brown comments, “Previous generations have always been anxious about the future, but we are the first who decide if the Earth inherited by our children will be inhabited.”

Timur Ceylan is an expert engineer at AMD Technologies, San Francisco.

References

• National report: “On the environment state and use of natural resources in the Republic of Uzbekistan.” State Committee on Nature Protection of Uzbekistan. Tashkent, 1998.
• K.Isentaev. “Geological structure and perspectives of oil and gas reserves of the Aral Sea.” Workshop report. Almaty, 1997.
• Ministerial conference of Central Asia. “Assessment of the environment.” Aarhus, Denmark, 1998.
• J. Mahambetova. Non-government union. “Aral tenizi.” Aralsk, 1999.

The Fountain: There are many types of philosophies as well as many traditions in the history of philosophy. Scholars for instance distinguish “ancient philosophy” from “modern philosophy.” So how do you locate “Islamic Philosophy?”

Oliver Leaman (O. L.): Trying to define Islamic philosophy is very tendentious, but then definitions as a whole are a problematic area in philosophy. In my view, Islamic philosophy is not necessarily done by Muslims, nor does it have to deal with religious issues. It is that style of philosophy that developed in the Islamic world roughly around the time of al-Kindi which persists today in what is now the Islamic world and indeed further afield.

The Fountain: If it is a separate tradition, what are its characteristics?

O. L.: I don’t think it has any characteristics that have remained the same over time. For example, today in the Arab world there is a protracted debate by philosophers on the nature of Arab civilization, its links with Islam, and how it relates to other civilizations. That is not a debate that existed in the early centuries of Islamic philosophy at all, but reflects the relatively recent experience of colonialism, the modern concept of the state, contemporary political events and so on. Philosophy like everything else has its fashions, and Islamic philosophy rolls with the times, which is why it still survives.

The Fountain: How do you view the relationship between Islamic philosophy and Islamic theology?

O. L.: Many of the issues that have been discussed by Islamic philosophers are religious, and also relate to the theology of a particular faith, i.e. Islam. It is not always easy to know how to distinguish between philosophy and theology, since both are abstract and conceptual investigations into complex issues. Some of the early thinkers like al-Farabi and Ibn Rushd drew a sharp distinction between philosophy and theology, arguing that philosophy is demonstrative and starts from principles that are themselves provable as true, while religion merely starts with beliefs that are accepted, but need not be true. Even if they are right, though, they agreed that the argument forms followed by both are the same, so a sharp distinction between Islamic philosophy and theology is not likely to be very helpful.

The Fountain: As compared to systematic philosophers such as Aristotle, Descartes, Kant on the one hand, and non-systematic ones such as Nietzsche and Wittgenstein on the other hand, how do you evaluate al-Ghazzali’s position?

O. L.: Al-Ghazali is just as systematic as any other major thinker, albeit one has to take him in relation to each stage of his life and thought, since he changed radically from one time to another. The same could be said of Kant, of course, who had a critical and a pre-critical period, and indeed some have argued a post-critical period also.

The Fountain: Did he engage in a philosophical activity in the “Inconsistencies of Philosophers?”

O. L.: I would classify the Tahafut al-falasifa as philosophical, like most of his works. It not only deals with philosophical topics but attacks them philosophically. Had he been operating theologically only he might have pointed to the beliefs of the philosophers and classified them variously as kufr and bid`a, and so condemned them on religious grounds, but in fact he does not limit himself to this at all, he mentions the theological objections to the philosophical principles and then seeks to refute the latter using the methods of those with whom he is arguing. If that is not philosophy then I don’t know what is.

N.M.: Did Islamic thought influence the Western thought?

O.L.: There is evidence of Islamic philosophy influencing Western thought in the medieval period. We know that the works of Ibn Sina and Ibn Rushd were translated into Latin and played a significant role in France and Italy, for instance, significant enough for Ibn Rushd’s views to be banned in 1270 and 1277 by Bishop Tempier at the University of Paris. Ibn Rushd was interpreted as arguing that philosophy and religion are contrary to each other, but nonetheless are both true, and so we have to accept them both, albeit as valid for different areas of our lives. Philosophy is for us as rational thinkers, and religion for us as social and emotional beings. This hardly presents a very flattering view of the role of religion, and it did not go down well with the Church. The popularity of Ibn Rushd for many centuries gives credence to the idea that he played a significant role in fostering the development of secularism in Europe.

The Fountain: Is the tradition of Islamic thought alive today? Can we mention theologically or philosophically mature works in this area?

O. L.: I started off responding to the question of what is happening in the area today, and then had to stop since the list of books and thinkers was getting so long. In my view, the most fruitful work today takes place in Iran, where ishraqi philosophy is being combined in productive ways with analytical philosophy to produce a highly original form of thought. Persians have always been predominant in Islamic philosophy; when the subject went into a decline in the rest of the Islamic world it continued to be part of the curriculum in Iran, and there is a very long and indeed unbroken tradition in Iran of philosophical work.

The Fountain: How do you evaluate oriental studies so far? Do they represent the Western interest in Islamic thought?

O. L.: I don’t think Western philosophers are interested in Islamic philosophy, with a few exceptions. The kalam cosmological argument is important in analytical philosophy of religion, and as its name suggests, it comes from Islamic philosophy. Some of the major thinkers in the mashsha’i tradition like Averroes (Ibn Rushd) and Avicenna (Ibn Sina) are known by those interested in medieval philosophy, but otherwise not.

It is not clear to me that we should divide up philosophy into different regions of the world, since those regions constantly work on each other and produce a common philosophical climate. For example, the Christian and Jewish world became in the Middle Ages fascinated with Islamic philosophy, but Islamic philosophy itself earlier on enthusiastically studied and incorporated Greek philosophy.

The Fountain: Let’s talk about the interaction between the Western and Islamic thought. Can Islamic thought bring new perspectives to contemporary Western thought and in what sense can Western thought may be useful for people who try to revive Islamic thought?

O. L.: What is western thought? Ibn Rushd, Ibn Bajja, and Ibn Tufayl, some of the major Islamic philosophers, lived in Spain, which seems quite far west to me. St. Augustine lived in North Africa; does that mean he was an African philosopher? What we call Western philosophy has produced interesting work which other philosophers should study, in just the same way that those in the West should know about more than just their tradition of thought, if there is such a thing.

The Fountain: The University of Kentucky is organizing an international graduate student conference in September this year. You are the coordinator of this conference. Is this conference unique in the US? What was your motivation and target in organizing such a rare and original conference?

O. L.: We wanted to organize a graduate conference on Islamic philosophy because there are a lot of people in the world working in this area, but often they do not come into contact with each other. In the United States in particular graduate students might be working in the area in a department where they are the only person with that interest, and it would be good if people could come together, share views and maintain contact with those in the same field afterwards.

The Fountain: What is your current research about?

O. L.: My current work is on the notion of whether there is a Qur’anic logic and if there is, what is it? The Qur’an constantly calls on its hearers and readers to reflect, ponder, consider what the Book says, and the suggestion is that we are supposed to understand rationally the arguments in the text. I am interested in how those arguments are structured and how far they can be regarded as valid arguments at all.

The University of Kentucky is organizing a conference on contemporary issues in Islamic philosophy and theology. All graduate students, and those of equivalent status, are eligible to present papers at the conference. For further inquiries please visit http://www.uky.edu/AS/Philosophy/events.htm

In our world, the most practical solutions exist for the most complicated matters; the simplest things have important duties and splendid mechanisms are developed from these to carry out the same. Thanks to these mechanisms, there is a moderate climate and there are ideal values of air, pressure, heat and precipitation. Let us briefly consider a few of these systems that contribute to maintaining the average temperature in the world. The exact amount of solar energy we need reaches the Earth, and the distance between the sun and the earth plays an important role in this. If we think about the freezing cold on Mars, which is farther away from the sun, or the burning heat – a heat which melts even lead – of Venus, which is nearer to the Sun, we can appreciate the special status of the Earth and how carefully chosen its position is. If the solar energy that reaches the Earth were to decrease by only 10%, the average temperature of the Earth would decrease, and subsequently our planet would be iced over with an ice layer measuring a couple of meters in depth. A slight increase of solar energy, however, would burn everything and eradicate life on Earth. 

We should not ignore the fact that our planet is of such a size that it is able to keep its gases within the atmosphere in ideal amounts and proportions. Our planet could have been created as small as Mercury (1/8 the Earth’s size) or as big as Jupiter (318 times bigger than Earth). A smaller planet with lower gravity would disperse gases into space and therefore would have no atmosphere. A bigger planet would keep all the gases within the atmosphere, including poisonous gases, due to its high gravity. Furthermore, the Earth would be uninhabitable due to high atmospheric pressure and density. The fact that carbon dioxide and water molecules are scattered throughout the air in sufficient amounts means that they absorb heat from the sunlight during the daytime, thanks to their highly absorbent potential. At night, when there is no sunlight at all, the air keeps the previously absorbed heat in, just like a greenhouse, preventing it from being released into cold space. During the day, the atmosphere serves as a curtain protecting the world from the harmful effects of the rays of the sun; at night, it serves as a blanket preserving the heat. Devoid of such a protective shield, the moon is scorched by the rays of the sun during the day and it freezes at night.

Do we owe the small difference in temperature between day and night only to the gases in the atmosphere, which function like a thermos flask? Of course not! We can observe that the time span (24 hours) in which our world completes its rotation is so perfectly adjusted that the difference in heat is kept at a minimum. If the nights were longer, the Earth would get too cold; if the days were longer, it would become too hot. Mercury, rotating very slowly, is a good example, the heat difference between day and night can reach up to 1,000 degrees.

Seas constitute one of the systems which help to adjust the climate. At first, we may find it strange that seas cover a far greater area than land. We have named the planet that plays host to us “the Earth”. The word “earth” also means soil. However, most of the Earth’s surface (70%) is covered by water, not soil. Thanks to this reality, neither polar cold, nor boiling tropical heat prevails on our planet. The land, which is heated by the rays of the sun during the day, radiates the heat it has absorbed, just like a radiator. As for the sea, which is a huge mass of water, it only warms up a few degrees, despite the millions of solar calories it takes in. Nevertheless, once it warms up, it does not grow cold easily. The oceans, which cover a larger area than land, supply water to the land through evaporation, as well as serving as a thermostat that regulates the climate and prevents it from becoming too hot or cold. If the oceans were to occupy a smaller area, there would be less evaporation and less precipitation; the land would turn to desert.

The air that is heated by the sun rises to be replaced by cold air. In this way, low pressure centers appear where there is hot weather and high pressure centers appear where there is cold weather.

The tilting axis of the Earth plays a significant role in keeping the average heat within tolerable limits. On the other hand, the way the mountain ranges are arranged and the 100 difference in temperature between the equatorial and polar regions lead to the creation of winds. If such a heat difference were to appear on a planet that had an even surface, nothing would stand in the way of the storms, and they would reach a speed up to 600mph. The Earth however, is provided with natural barriers that block powerful air currents. These barriers begin at the Himalayas and continue as mountain ranges through the Taurus Mountains and the Alps, ending with the Atlantic Ocean in the west and the Pacific in the east. Another mechanism that helps regulate the heat in the atmosphere is that of the ocean streams. Overheating generated in the equatorial region is transferred to the north and south by the ocean streams, balancing the heat in different parts of the world.

This is not the only way in which the Exalted Creator Who has absolute control over the systems balancing the heat in the atmosphere manifests His Power. He assigned the clouds a similar job. Hot weather causes evaporation, which leads to formation of clouds. Clouds prevent some of the sunlight from reaching the Earth, reflecting it like a mirror.

The Proportion of Gases

The atmosphere consists of approximately 77% nitrogen, 21% oxygen, and 1% argon and other gases. The majority of living organisms, including human beings have been created with a metabolism that needs oxygen. When carbon compounds react with oxygen, the outcome is energy, with by-products being water and carbon dioxide. When such a reaction takes place in our body, the energy obtained is transferred to the energy packs (tiny accumulators) called ATP, which we use in our cells. Since all metabolic activities require ATP energy, we constantly need oxygen and this need is met through respiration.

Given that oxygen is a vital substance for us, we might think that it would be better for us if there were more oxygen in the atmosphere. Fortunately, our Lord did not create the universe in accordance with such simple logic. It is estimated that every oxygen increase of 1% over a level of 21% will also increase the possibility of forest fires by 70%, owing to the high inflammability of oxygen. An oxygen rate over 25% would cause the majority of our greenery to be burned to ashes. All the tropical forests and arctic tundra would be destroyed and it would be impossible to prevent great fires. This all goes to demonstrate that the present oxygen rate in the atmosphere is at equilibrium.

In spite of constant consumption, the rate of oxygen and carbon dioxide in the atmosphere is maintained thanks to a wonderful transformative mechanism which runs smoothly without failure (that is if we do not damage it). While animals consume oxygen, they continually release carbon dioxide into the atmosphere; carbon dioxide is a poisonous gas for animal life. Plants however, perform just the opposite activity, transforming carbon dioxide into oxygen, and producing nutrients as well, the most common being sugar. In this way, billions of tons of oxygen are produced and released into the air everyday.

What if plants, like animals, were to carry out the same reaction, consuming oxygen and releasing carbon dioxide? In a short time, our planet would turn into an uninhabitable place. We would use up the oxygen in the atmosphere in a short time and all life forms would be eradicated. And how about a world where both animals and plants produce oxygen? The atmosphere would have such a flammable quality that even the tiniest spark would cause great fires.

Like the other gases in the atmosphere, oxygen is kept at an ideal rate, its benefit and harm being precisely balanced. This is nothing more than the result of a perfect adjustment made by ‘Him’. There can be no coincidence in such splendidly created systems and nor can these things happen on their own.

A Breath of Air

The fact that the density of the atmosphere is ideal for respiration also indicates the impossibility of ‘coincidence’ in this delicate arrangement. No matter whether we feel it or not, we continue breathing every moment of our life.

We constantly inhale and exhale the air. The reason why we need to breathe so much is that there are billions of biochemical reactions taking place in our body all the time which can only be realized with oxygen. Oxygen is even helping you to read this article, for the millions of cells in your retina need to be supplied with oxygen. If the oxygen rate in your blood decreases, your vision blurs. All the cells that make up the muscles in our body have energy generating centers which function by burning carbon; in other words, they react with oxygen.

When we inhale, nearly 300 million tiny spherical bags (alveols) are filled with high-pressure oxygen. The oxygen in the capillaries that cover the cell walls is reduced and then is at a low pressure. This allows the oxygen in the air to be absorbed by the capillaries and to be carried away by the hemoglobin found in the red blood cells – the magnificent servants of our body. Then it begins to serve our entire body, starting with the heart.

The red blood cells which travel to the lungs from different parts of the body carry oxygen from the lungs to the energy centers of the cells and they carry the waste material – carbon dioxide – back again to the lungs. In this process, clean air (with oxygen) is inhaled and is exhaled with carbon dioxide. Obviously, both inhalation and exhalation are vital functions for which we should be thankful. The words we utter can be considered the fruit of the carbon dioxide we exhale. On the other hand, this waste gas is recycled into oxygen and sugar by plants.

The fact that 300 million tiny bags in our lungs have been constructed to fit into a limited area clearly indicates God’s infinite knowledge and the fact that He is Omniscient. If these were to be spread out over the ground, they would cover an area as big as a tennis court. They should, logically, require a gigantic organ to carry them; think about how we would carry this organ around with us…

In spite of being so tiny, the alveols and alveolar tubes in our lungs are large enough to let air move freely, which is another sign reflecting His wisdom.

The atmospheric pressure at sea level is 1 atm. This means that 1 kilogram of pressure is applied over a square centimeter, an area that is only as large as the tip of one’s finger. At sea level, 1 liter of air weighs 1 gram. As it is seen, the air has an immense pressure, in spite of its lightness.

The fluidity of air is fifty times greater than that of water. As a matter of fact, these values are very accurate and the fact that they are so is critical for our life. If the density of the atmosphere were to be slightly increased, breathing would become as difficult as sucking honey through a straw. Do not even think of saying “make the straw wider”, i.e, making the alveolar tubes in our lungs wider. In such a case, the area contacting the air would be diminished and the lungs would be unable to receive a sufficient amount of oxygen to meet the needs of our body. The resistance of the air would be too great and it would be impossible to design a respiratory system capable of supplying the oxygen we need.

Several conditions that make life possible are only realized at certain values, and the atmosphere possesses precisely all of these values. All these only go to show how delicate His adjustments are.

What if the atmospheric pressure was lower, for instance, just 20% lower than it is at present? Given that the conditions of evaporation and boiling depend on the air pressure, more water would evaporate from the oceans and eventually the high humidity of the atmosphere would create a greenhouse effect on the Earth. In other words, there would be excessive heat in the world. And if the atmospheric pressure was twice as great, the humidity would be so low that there would be terrible drought, turning almost all of the land into desert.

Several conditions that make life possible are only realized at certain values, and the atmosphere possesses precisely all of them.

Who are all these things balanced for?

The air that is in front of our nose, ready to be of use to us, the ground under our feet, the night and day that follow one another in succession… the sun, the honey bee covering miles for us… When we contemplate all these, we realize that all their activities are directed to serve us.

The beings in this universe do not serve us from their own free will. It is crystal clear that all things point to a Creator Who takes care of us.

Our Creator has bestowed us with ears, providing the world of sounds for us. He has created a brain in our skull, a heart in our chest and a tongue in our mouth; these serve as devices by which we sense and appreciate His blessings that overflow from His treasures of Mercy. He has presented various fragrances, tastes and colors for our senses; He has created numerous species in order to help such devices fulfill their true duty. Only the atmosphere and what it covers will suffice as signs that indicate the ultimate truth. Study the following Qur’anic verse, that reminds us of the divine grace: “And He subjected to you what is in the heavens and the earth all together, (as a grace) from Him.” The rest of the verse counsels us to reflect: “There are in that signs for a people who reflect.” (45:13)

This work by M. Fethullah Gulen is a continuation of a long tradition of books and articles promoting the cause of serving society through the advancement of universal education. Fethullah Gulen is a widely known and respected Turkish scholar, religious leader, educator, and social reformer, whose values stem from his Islamic faith, and whose overriding interest is in the well-being of Muslims as well as all of mankind. Fethullah Gulen’s many life experiences including a teaching post in Edirne Turkey, and those acquired throughout his life within his faith, have contributed to his understanding of the role of education in shaping the world we live in. His corresponding beliefs that tyranny can be eliminated and justice achieved through education for all mankind are copiously illustrated in this and all of his former works.

Readers in the United States and other western countries will discover many comments, shaped by Fethullah Gulen’s wealth of knowledge and experience that are colored by the filter of his own education, culture, religious beliefs, and national origin. These readers can best benefit from his breathtaking perspective, and depth of understanding, by exercising tolerance and acceptance of his background and life experiences. Indeed, Fethullah Gulen has much wisdom to offer those who are truly willing to contemplate his message.

Obvious to any reader familiar with the works of Fethullah Gulen, the overall intent of this book is to both inform and guide readers in their daily lives Some chapters of this book are titled; The Spiritual Life; The Personal Life; Family; Society; Social Interaction. Fethullah Gulen divides each chapter into several subject areas, and in each subject area he provides several short and to-the-point comments (pearls) designed to provoke thought and shape the understanding, and resultant actions, of his readers.

For an example related to politics; in chapter seven, “Government”, in the subject area of “Republic”, Fethullah Gulen writes: “The Prophet, upon him be peace and blessings, did not claim kingship, and his four immediate political successors followed his example. Kingship appeared when people grew remote from the Islamic spirit, and eventually this digression became a vehicle for oppression and despotism.” This is indeed an interesting pearl, for it contains wise commentary regarding the his- torical development of politics in the Islamic world, and helps us understand the root cause of many of the problems faced by modern day Muslims. It may also help guide some modern day Islamic countries in developing policies and practices that will lead them out of the political, economic, and cultural quagmires they may be experiencing at this time.

Another example, this time related to the science of metaphysics, can be found in chapter nine, “Ideal People”, in the subject area of “Pearls of Wisdom”: “Matter has no comprehension, consciousness, feeling, or will. It is comprised only of some laws and particles (used to form things). What an embarrassing mistake it is to count it as the essence of existence.” Fascinating insight that encourages us to critically examine the values we and our cultures have adopted regarding the worth and value of property and objects.

In Pearls of Wisdom Fethullah Gulen has assembled an awesome collection of wise thoughts and arranged them in logical subject areas in order that we can use them to examine our lives and benefit from his wisdom. There are literally hundreds of pearls in this book, and every one of them requires our immediate attention.

In a book that deals with questions of logic, when we see numbers written in succession, such as 5, 15, 25; then we are able to discover the relation between these numbers, to predict the next number and to realize that this pattern was made by somebody. However, if we were to be told that these figures indicate the distance covered in equal segments of time by a pebble that has been dropped from a certain height, most of us would not think about the One Who made this general rule.

Or for example, the equation 11.111.111 x 111.111.111 = 12.345.678.987.654.321 may be as amazing to some people as the verses of a beautiful poem, whereas it will leave others cold.

Likewise, the famous mysterious symbols of mathematics, e, i, , are nothing more than some alphabetical signs for most of us, nevertheless they must have meant a lot to the famous physicist, Richard Feyman, since he wrote the following equation in his diary, noting that he admired it: ei+1=0

If we write f (z) = Z2 + c;, this will not be a meaningful sentence for most people. But that will not change the fact that it is an incredibly simple expression of biological and physical reality in an expression which concerns our lives (as in fractal logic). And the picture you see here (Figure 1) is nothing but the analytical projection of this equation on a computer screen.

The spiral form (Figure 2) which can be seen in various things from cone shells to nebulas, has a very simple formula, r2=a2/A which is fascinating for those who spend some time to think about it. All these examples have a point in common. These numbers, which are abstract concepts, are as real as the concrete objects of the physical world. While other sciences make sense, more or less, for a layperson, mathematics can only be appreciated by people who know it well.

The mythological Princess Dido of Phoen-icia fled from the city where her husband (the King;s brother) had been slain by the King. She wanted to settle in Carthage, in North Africa. There the King only allowed her to buy as much land as could be covered by the skin of a cow. Dido decided to interpret the word ;cover; in a wider sense. She had her servants cut the skin in thin strips, connecting them to each other. In the end, she obtained a long cord, estimated to be somewhere from between 1,000 to 2,000 m. long. When it came to placing it on the ground, Dido wanted to find the shape that would cover the largest area. She found the right shape. She made a circle on the ground and she was able to encompass quite a large area of land. As a matter of fact, looking at some ancient castles, we can understand that they were built in this way in order to create the largest structure over the smallest possible area. This explains why the cross-section of a vessel tissue is circular, because it occupies minimal space in the body (Figure 9).

Did you know that mathematical reality applies in our body and in the universe? This fact was realized when scientists developed fractal geometry. The fractal structure we see in the roots and leaves of plants and in the human respiratory and vascular systems are very good examples of this fact. Such excellence indicates the All-Knowing Omnipotent One Who is behind these geometrical designs (Figures 4, 5, 6).

What is the invisible secret of this visible structure? Dido had to enclose the maximum area by using limited material, which she accomplished. Such optimization also exists in the human body and in other living things. The biological systems we have mentioned above have vessel systems designed as fractal networks, delivering the necessary substances to cells. Essentially, these systems are designed in such a way that the vessels occupy minimal space while serving all the cells within the system; this can only be realized through such a fractal structure.

The most striking proof supporting this idea is that if the human veins, which do not take up a great deal of space in the body, were all added together, they would reach a length that is three times the circumference of the world.

How can this be possible? This can be explained quite simply: find an equilateral triangle and carry out the following instructions. First, divide each side of the triangle into three equal sections and place another (smaller) equilateral triangle on the middle section of each side you have divided, facing outwards. If you repeat the same thing for each of these small triangles, you will create the pattern below (Figure 8).

In a fractal structure, as the number of branches near infinity, the shape of the structure resembles a circle more and more. The new area we will find cannot be bigger than the area of the circle, and the points of contact with the circle will approach the maximum value (Figure 9).

We can also explain this fact in the following way: take a circle with a radius of 3 cm. This will serve as the cross-section of a cylindrical object. Then draw seven smaller identical circles inside the first circle. You will see that the proportion between the sum of circumferences and the sum of areas is 5/7. Those who are interested in mathematics will see that as the value of the r (radius) decreases, the difference increases. This clearly indicates that fractal structures are always advantageous. So, what about organs like the brain or the lungs? They do not have a completely fractal structure, yet they really need to have a larger surface area than other objects of equal size. These organs have been enabled to have the largest possible surface area by being convoluted. Otherwise, man would be a strange creature, burdened with a huge mass on his back. Similarly, when we look at a map that shows the coastlines, we see that a coastline that has many capes and bays has a longer coast line than its counterparts, which run straight along the land. All these living things or organs (man, trees, brain etc) have such structures from the very moment they are created. This system or project (Figure 10) cannot have developed on its own, by chance, without there having been a Creator.

Sir James Jean says, ;The Creator must be a perfect Mathematician; in his book The Mysterious Universe. In so saying, he draws attention to mathematics, the mysterious pattern in the universe, and points to the Artist behind the ornamented beauty seen in Creation. The magical science of mathematics whispers its secrets to those who try to perceive it through the eyes of wisdom.