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	<title>flying &#8211; Fountain Magazine</title>
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		<title>Nonstop from Alaska to Hawaii: Pacific Golden Plovers and Their Miraculous Journey across the Ocean</title>
		<link>https://fountainmagazine.com/all-issues/2020/issue-133-jan-feb-2020/nonstop-from-alaska-to-hawaii-pacific-golden-plovers-and-their-miraculous-journey-across-the-ocean/</link>
		
		<dc:creator><![CDATA[The Fountain]]></dc:creator>
		<pubDate>Wed, 01 Jan 2020 23:31:44 +0000</pubDate>
				<category><![CDATA[Issue 133 (Jan - Feb 2020)]]></category>
		<category><![CDATA[alaska]]></category>
		<category><![CDATA[bird]]></category>
		<category><![CDATA[birds]]></category>
		<category><![CDATA[energy]]></category>
		<category><![CDATA[flight]]></category>
		<category><![CDATA[flying]]></category>
		<category><![CDATA[formation]]></category>
		<category><![CDATA[hawaii]]></category>
		<category><![CDATA[journey]]></category>
		<category><![CDATA[migratory]]></category>
		<category><![CDATA[Pacific Golden Plover]]></category>
		<category><![CDATA[plover]]></category>
		<category><![CDATA[Science]]></category>
		<category><![CDATA[Zoology]]></category>
		<guid isPermaLink="false">http://107.21.79.195/all-issues/2020/issue-133-jan-feb-2020/nonstop-from-alaska-to-hawaii-pacific-golden-plovers-and-their-miraculous-journey-across-the-ocean/</guid>

					<description><![CDATA[Many animals would tell us fascinating stories about their behaviors and marvelous abilities if only we could understand their language. As a result of years of research, many outstanding features of different animals have been discovered by scientists and these findings have formed the basis for numerous inventions. The Pacific golden plover (or the kolea, [&#8230;]]]></description>
										<content:encoded><![CDATA[<p><img fetchpriority="high" decoding="async" class=" size-full wp-image-6819" src="https://fountainmagazine.com/wp-content/uploads/2020/01/12-506.png" alt="Nonstop from Alaska to Hawaii: Pacific Golden Plovers and Their Miraculous Journey across the Ocean" width="1920" height="1200" srcset="https://fountainmagazine.com/wp-content/uploads/2020/01/12-506.png 1920w, https://fountainmagazine.com/wp-content/uploads/2020/01/12-506-300x188.png 300w, https://fountainmagazine.com/wp-content/uploads/2020/01/12-506-1024x640.png 1024w, https://fountainmagazine.com/wp-content/uploads/2020/01/12-506-768x480.png 768w, https://fountainmagazine.com/wp-content/uploads/2020/01/12-506-1536x960.png 1536w" sizes="(max-width: 1920px) 100vw, 1920px" /></p>
<p>Many animals would tell us fascinating stories about their behaviors and marvelous abilities if only we could understand their language. As a result of years of research, many outstanding features of different animals have been discovered by scientists and these findings have formed the basis for numerous inventions. The Pacific golden plover (or the kolea, as it is called in Hawaii) is one such animal that is created with amazing abilities, like conserving huge amounts of energy with incredible techniques.</p>
<p>The Pacific golden plover is a migratory bird. The mother and father birds leave their nests in Alaska when their chicks are only a few months old, and return to Hawaii where they are originally from. Chicks by then have not yet learned how to fly [1]. After spending the summer in Northwest Alaska [2], when the winter comes chicks take off en route to the Hawaiian island where their parents are and where they have never been before. Considering that the distance is 4500 km (~2800 miles), this journey seems almost impossible for such a small bird, which, unlike many birds capable of trans-oceanic migrations, cannot swim, soar, or glide and weighs approximately 130 grams (~4.6 ounces).</p>
<p>Flying over the Pacific Ocean all the way from Alaska, the most extreme point of North America, to the island of Hawaii, the golden plover does not have a chance to land even for a short time to gather energy. The bird absolutely cannot fall under 130 grams either, because under this weight it would not have the energy needed for the remaining distance, which would be the end for the bird. To complicate matters even more, the Pacific golden plover loses 0.6% of its body weight every hour that it flies non-stop. There are two significant problems in this long journey; the fact that it cannot gain energy during its flight, and the problem of navigation. Not knowing which direction to fly in the vast ocean, or flying in the wrong direction for a short time, means an inevitable death for the bird.</p>
<p>The information we have obtained about this bird’s amazing ability to conserve energy journey is amazing. The flight time is 88 hours, or three days and four nights. For comparison, a modern Airbus A380 or Boeing 777-200LR can only fly about 18 hours without refueling [3]. During the flight, the Pacific golden plover flaps its wings 250,000 times, setting another record. “Imagine” says Dr. Oscar Wally Johnson from Montana State University “that flight you made from L.A. to Honolulu – only without the plane” [4].</p>
<p>Observations that have been made during the bird’s flight help us to understand how it overcomes these challenges [5]. The birds prepare for their journey by eating a lot and gaining a lot of weight in a short time. An average golden plover weighs roughly 130 grams and gains 70 grams of more weight, more than half of its body weight, during this intense eating period. Imagine a person that weighs 176 pounds (80 kg) gaining 100 pounds (45 kg) more to become 125 kg (275 pounds) in two weeks. The bird would normally lose 0.6% of its weight every hour it flies without a rest, and at the end of 88 hours it would remain only 117.8 g. As mentioned above, should the bird fall below its regular weight of 130 grams, it would be too exhausted to complete the journey. As soon as the bird runs out of energy, it would still have more than 497 miles (800 km) left before it reaches its destination. So, how is this problem solved?</p>
<p>If we want to save money on long car drives, then we set our cruise control to 110 km/h (~68 m/h) and drive at a constant speed. The bird does just that, and flies the whole distance at a constant and optimal speed of 51 km/h (~ 32 m/h) [6]. Flying slower than this speed would increase the amount of “fuel” that would be consumed, and flying faster would increase the energy consumption due to air resistance. Pacific golden plovers also fly in a “V” formation where the foremost birds flap their wings thus generating airflow that allows the birds in the rear of the formation to not have to use their wings in order to conserve energy [7]. Birds that are tired in front of the formation change their position with the ones who have had some rest at the back. Thus, they save about 23% of their energy and reach their destination of Hawaii while being slightly overweight. This excess weight is not stored in vain; it is estimated that more energy will be consumed in the case of bad weather conditions. During their flight, it is possible that the air could be foggy, cloudy, very sunny, or even rainy and windy, in which case their energy consumption can increase.</p>
<p>How does this bird determine the direction it should go? Imagine that this bird flies in absolute darkness for three nights without getting lost despite the fact that even a small deviation from their path could cause a huge deviation in the long run and cost the bird a fortune. They keep their flight formation and reach their destination despite all kinds of difficult conditions, including rain at night. With the help of a compass miraculously placed in the brains and eyes of these birds [8], they follow the magnetic field lines of the earth at a certain angle, adjust their position and follow their paths without facing any surprises [9]. Some scientists believe that the magnetic field map of the world is recorded in the eyes of migratory birds.</p>
<p>Migratory birds can also use the sun to correct their flight path. This difficult journey is successfully completed with the immigration program embedded into their genetic code by the Almighty Creator.</p>
<p>With their excellent energy saving and navigation features, the Pacific golden plover, a migratory bird species that has been doing this long-distance journey for thousands of years, provides us with very important lessons that can lead us to deep contemplation.</p>
<p><em> “Have they never considered the birds above them, flying in lines with wings they spread out and fold in? Nothing holds them up except the All-Merciful. He indeed sees everything very well.” Mulk 67:19</em></p>
<h3>References</h3>
<ol>
<li>If animals could talk-Wenn Tiere reden könnten Werder Gitt, K.-H.Vanheiden</li>
<li>https://academic.oup.com/auk/article-abstract/100/3/607/5185692</li>
<li><a href="https://de.statista.com/statistik/daten/studie/232416/umfrage/reichweite-der-airbus-modelle/">https://de.statista.com/statistik/daten/studie/232416/umfrage/reichweite-der-airbus-modelle/</a></li>
<li><a href="https://hanahou.com/7.6/flight-of-the-navigators">https://hanahou.com/7.6/flight-of-the-navigators</a></li>
<li><a href="https://www.nabu.de/tiere-und-pflanzen/aktionen-und-projekte/birdwatch/index.html">https://www.nabu.de/tiere-und-pflanzen/aktionen-und-projekte/birdwatch/index.html</a></li>
<li>Peter F. Major, Lawrence M. Dill: <a href="http://www.sfu.ca/biology/faculty/dill/publications/art%253A10.1007%252FBF00354974.pdf"><em>The three-dimensional structure of airborne bird flocks.</em></a> In: <em>Behavioral Ecology and Sociobiology</em> Band 4, Nr. 2, 1978, S. 111–122.</li>
<li>Cutts, J. Speakman: <a href="http://jeb.biologists.org/content/189/1/251.full.pdf"><em>Energy savings in formation flight of pink-footed geese.</em></a> In: <em>J. theor. Biol.</em> Band 189, Nr. 1, 1994, S. 251–261.</li>
<li><a href="https://www.weltderphysik.de/thema/hinter-den-dingen/wie-finden-zugvoegel-den-weg/">https://www.weltderphysik.de/thema/hinter-den-dingen/wie-finden-zugvoegel-den-weg/</a></li>
<li>https://www.spektrum.de/frage/orientierung-wie-finden-zugvoegel-ihren-weg/1425607</li>
</ol>
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		<item>
		<title>Remembering the Super Victim: A Letter from a Villain&#8217;s Mom to a Superhero</title>
		<link>https://fountainmagazine.com/all-issues/2012/issue-89-september-october-2012/remembering-the-super-victim-a-letter-from-a-villain-s-mom-to-a-superhero/</link>
		
		<dc:creator><![CDATA[Louima Cunningham]]></dc:creator>
		<pubDate>Sat, 01 Sep 2012 00:00:00 +0000</pubDate>
				<category><![CDATA[Issue 89 (September - October 2012)]]></category>
		<category><![CDATA[asked]]></category>
		<category><![CDATA[club]]></category>
		<category><![CDATA[day]]></category>
		<category><![CDATA[dinner]]></category>
		<category><![CDATA[family]]></category>
		<category><![CDATA[father]]></category>
		<category><![CDATA[flying]]></category>
		<category><![CDATA[incredible]]></category>
		<category><![CDATA[inventions]]></category>
		<category><![CDATA[Literature & Languages]]></category>
		<category><![CDATA[place]]></category>
		<category><![CDATA[school]]></category>
		<category><![CDATA[sidekick]]></category>
		<category><![CDATA[son]]></category>
		<category><![CDATA[started]]></category>
		<category><![CDATA[story]]></category>
		<category><![CDATA[superheroes]]></category>
		<category><![CDATA[thought]]></category>
		<category><![CDATA[time]]></category>
		<category><![CDATA[true]]></category>
		<category><![CDATA[young]]></category>
		<guid isPermaLink="false">http://107.21.79.195/all-issues/2012/issue-89-september-october-2012/remembering-the-super-victim-a-letter-from-a-villain-s-mom-to-a-superhero/</guid>

					<description><![CDATA[My husband had never been a family man; he was always focused and devoted to his work. For him, a successful business meant power and that family was only a minor obligation. There were many times where I felt that I was a burden to my husband. I even began to wonder why we got [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>My husband had never been a family man; he was always focused and devoted to his work. For him, a successful business meant power and that family was only a minor obligation. There were many times where I felt that I was a burden to my husband. I even began to wonder why we got married in the first place. I have often wondered how such a workaholic could have ever been romantic.</p>
<p>However, it is not my husband, but rather my son, whom I want to talk about now. The anniversary of my son&#8217;s death was yesterday. It is probably in vain to talk about the last days of his life, because people already know that part of the story. He was part of an incredible story, but unfortunately he was on the wrong side.</p>
<p><span id="more-1404"></span></p>
<p>My son learned at an early age how to become a man like his father, one who was devoted to his work and driven by success. His father did not spend much of his time with his family, but on those occasions that he did, he spent most of the time talking about his successes and the growing influence of his business. It was easy to tell that my son was captivated by his father&#8217;s success. To him, his father was an angel who had descended from heaven to tell him stories of miracles and wonders.</p>
<p>Unlike his father&#8217;s business obsession, my son developed an interest in machines. He dissembled and re-assembled all sorts of machines from a very young age and was able to combine different objects to come up with his own primitive inventions. Before he went to elementary school, he invented an automated knife that would spread butter on his bread and a machine that would bring him the remote control when triggered by pulling down on a string. Often, I found myself worrying about my son&#8217;s future education and wondering what this kid could possibly learn at school.</p>
<p>Unfortunately, within the first week of school, my worries about his education came true when my son was diagnosed with Attention Deficit Hyperactive Disorder (ADHD) and quickly became an outcast at school due to his hyperactivity. My divorce from his father during the same year only made things worse. I didn&#8217;t know what to do. Although it was not the best solution, I still thought it was best for my son to continue to study at a normal, public school.</p>
<p>In his second year, a fan club was formed to celebrate the superheroes that made this planet a better place to live. Mr. Incredible, Elastigirl, Frozone, Gazerbeam, Superman, etc., were all invitees of this club during their biweekly activities. My son, having grown up with the example of his successful father, soon developed an interest in this club. There, my son had found an excellent replacement for his father, whom he deeply missed since our divorce.</p>
<p>One day he returned from the club&#8217;s activities and was not the same person that usually returned from school. I hardly recognized him. The angry-looking, hyperactive outcast was gone, and in his place was a child who was destined to follow his dreams. During dinner, I asked how his day had been. He talked about a man that I &#8220;better marry,&#8221; because he wanted him as his father. Guess who it was: Mr. Incredible.</p>
<p>&#8220;I asked and he said he was single and he loved children,&#8221; my son insisted.</p>
<p>&#8220;But I&#8217;ve never met him!&#8221; I replied, smiling.</p>
<p>&#8220;I&#8217;m sure you&#8217;ll love him,&#8221; he said.</p>
<p>I was so happy that, after two years of misery and distress, we could have a dinner like mother and son.</p>
<p>The dream went on for a few months, until one night when he came home from a friend&#8217;s house, looking very distraught. I thought perhaps he had a fight with his friend, but it wasn&#8217;t that. He had tried to tag along with Mr. Incredible as his sidekick but had been kicked out of his car, because Mr. Incredible found him too young and didn&#8217;t want a sidekick. After all, Mr. Incredible always worked alone. Eventually, my son was able to accept the situation and he realized that what Mr. Incredible said was true, that he actually was too young. However, his awe of Mr. Incredible never faded. He always sought ways to get Mr. Incredible to accept and appreciate him.</p>
<p>By the time my son was in middle school, companies began to purchase his inventions. He was already well on his way to becoming as successful as his father had been. I frequently asked myself what this boy would accomplish in the future. He already had achieved what most people never would in an entire lifetime. Flying boots were his latest invention. He thought this would catch Mr. Incredible&#8217;s attention because flying would greatly improve Mr. Incredible&#8217;s ability to fight crime.</p>
<p>One night, he was brought home by the police. I literally freaked out. I thought he had done something horrible with one of his crazy inventions. Apparently, he had tried to help Mr. Incredible at the scene of a robbery, but everything had gone wrong and Mr. Incredible rejected him as a sidekick once more. Being an adolescent undergoing puberty he had difficulty in facing this latest rejection from his hero. He not only craved acceptance and appreciation but he needed them. From that day on, all the Mr. Incredible posters, stickers, and T-shirts were gone from our house. Instead, my son started putting up posters of villains and he started to idolize them.</p>
<p>I couldn&#8217;t tell anyone, but I was terrified when I found a paper in his room that said, &#8220;Revenge of the Bad Guys.&#8221; I hoped this was a sort of adolescent fury that would go away in time. And it did &#8211; at least I thought it did.</p>
<p>After he completed his university degree, my son started a company that focused on the research and development of defense systems. Because of his genius, he easily achieved immediate success and purchased two islands in the Pacific: one as his home to live with his fiancée and the other as his base of operations. I was a happy mother because after so many years of hard work and worries, I thought my son had finally overcome his difficulties and was moving on with his life.</p>
<p>My dream did not last long. After the government grounded all the superhero activities due to public unrest towards the superheroes, my son started popularizing his inventions that mimicked the abilities of these superheroes: flying boots, a machine that made any shape by freezing the humidity in the air, a never-ending rope that never broke, etc. I never thought that what he was doing was simply a disguise to hide his true goal: discovering Mr. Incredible&#8217;s secret identity and getting revenge for himself and for all those whose parents or spouses were hurt or killed by the superheroes. I found out about this from one of his journals that was later given to the police by his fiancée.</p>
<p>You know the rest of the story. My son was struck by a car that Mr. Incredible threw at him and was finally killed by the very jet engine he had invented and built. Mr. Incredible had once been my son&#8217;s hero and was now his murderer. What can I say? Congratulations, Mr. Incredible on another job well-done! I hope you can enjoy dinner with your family tonight as I&#8217;m writing these lines in sorrow &#8230;</p>
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		<title>Perfection in the Physique of Birds</title>
		<link>https://fountainmagazine.com/all-issues/2012/issue-87-may-june-2012/perfection-in-the-physique-of-birds-may-june-2012/</link>
		
		<dc:creator><![CDATA[Louima Cunningham]]></dc:creator>
		<pubDate>Tue, 01 May 2012 00:00:00 +0000</pubDate>
				<category><![CDATA[Issue 87 (May - June 2012)]]></category>
		<category><![CDATA[bird]]></category>
		<category><![CDATA[birds]]></category>
		<category><![CDATA[eagle]]></category>
		<category><![CDATA[eyes]]></category>
		<category><![CDATA[fly]]></category>
		<category><![CDATA[flying]]></category>
		<category><![CDATA[human]]></category>
		<category><![CDATA[kingfisher]]></category>
		<category><![CDATA[order]]></category>
		<category><![CDATA[owl]]></category>
		<category><![CDATA[place]]></category>
		<category><![CDATA[prey]]></category>
		<category><![CDATA[Science]]></category>
		<category><![CDATA[speed]]></category>
		<category><![CDATA[structure]]></category>
		<category><![CDATA[swallows]]></category>
		<category><![CDATA[water]]></category>
		<category><![CDATA[wings]]></category>
		<guid isPermaLink="false">http://107.21.79.195/all-issues/2012/issue-87-may-june-2012/perfection-in-the-physique-of-birds-may-june-2012/</guid>

					<description><![CDATA[With bodies heavy for flying and light for diving into the water, birds push the limits of their physique. Let&#8217;s take a close look at the artistry displayed in birds, which amaze thinking people with their wonderful flying techniques. Able to dive into the water at a speed approaching 90 km, the kingfisher can grab [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>With bodies heavy for flying and light for diving into the water, birds push the limits of their physique. Let&#8217;s take a close look at the artistry displayed in birds, which amaze thinking people with their wonderful flying techniques.</p>
<p>Able to dive into the water at a speed approaching 90 km, the kingfisher can grab its prey at this speed in a depth of 60 cm, instantly pivot back and then, using its wings as oars, surface above the water. In order not to lose its prey, the bird&#8217;s precisely timed diving and surfacing takes place in three seconds.</p>
<p><span id="more-1374"></span></p>
<h3><b>A torpedo as light as a fly</b></h3>
<p>The most basic factor that enables an animate creature to dive into the water is its body being heavier than the water. With a weight of 40 g and a length of 18 cm, the kingfisher (Alcedo atthis) should remain on top of the water and not be able to catch fish because it cannot dive. However, because God put the sustenance of this bird in the depths of the sea, He gave it the special diving ability. Able to dive into the water at a speed approaching 90 km, the kingfisher can grab its prey at this speed in a depth of 60 cm, instantly pivot back and then, using its wings as oars, surface above the water. In order not to lose its prey, the bird&#8217;s precisely timed diving and surfacing takes place in three seconds. In a short period of time the kingfisher has traveled a distance 414 times its height. This shows that it can move as fast as a fighter aircraft. If we consider what the kingfisher does on a human scale, a person would be able to dive 26 meters in three seconds and then resurface with a prey the size of a sheepdog. Here another interesting point should be made. The fish the kingfisher wants to catch is actually in a different position than it would visually appear from the sky due to the difference of the degrees of deflection of light in water and air. Bereft of any knowledge of optics, how does this bird solve this problem of physics?</p>
<h3><b>How heavy is a bird feather?</b></h3>
<p>There are physical limits to bird&#8217;s flying capabilities. In order for a bird to be able to fly, its weight should not be more than 15 kg. In order for birds heavier than this to fly, their wings have to be proportionately larger so it is difficult for this big a bird with heavy wings to fly. Male silent swans (Cygnus olor) weigh more than 14 kg; in fact, there are even some that weigh 20 kg. However, God compensated for this situation with a special structure. Like other birds, the silent swans have some bones filled with air and the inner part of these bones has been made stronger with small props. For this reason, the feathers and bones of these birds are one-tenth as heavy as their bodies. There are more than 12,000 muscle ligaments in the wings of swans to activate the feathers used in flying. Long (50 cm) wing feathers greatly increase the carriage surface of the wings. Each feather can carry 200 grams of weight during flight. For this reason, a swan that loses just one wing feather can no longer take flight. It takes 60 days for the feathers to be completely renewed.</p>
<p>Because the owl&#8217;s ears were created asymmetrically (the right ear is higher), sounds reach the close ear 1/300,000 of a second earlier. This small amount of time difference is enough for the owl to determine the exact place of the source of the sound.</p>
<h3><b>Are owls flying radar stations?</b></h3>
<p>Under normal conditions it is not possible to hear the sound waves of a mouse eating a hazelnut in a hayloft. Possessing a sensitive receiver, owls are an exception. The facial structure of owls resembles the high tech early warning equipment on AWACS planes. Focusing on even the smallest sound wave just like a satellite antenna, this structure cannot be explained by the intelligence of an owl.</p>
<p>Because the owl&#8217;s ears were created asymmetrically (the right ear is higher), sounds reach the close ear 1/300,000 of a second earlier. This small time difference is enough for the owl to determine the exact location of the source of the sound. Through the 95,000 nerve cells in the simultaneous hearing center, the brain imagines a 3-D image of the prey. Due to the anatomy of it 14 neck vertebrae (humans and other mammals have seven vertebrae), the owl was given the capability of turning its head 270 degrees and determining the exact position of its prey. While flying towards the place where the sound came from, the owl can constantly recalculate the position of the prey relative to its own position, even if the prey changes its place. As a result of this precise calculation, only three seconds passes between the moment the owl first heard the sound of the prey and the moment it makes its deadly attack.</p>
<h3><b>Is there a mathematical formula for remaining alive?</b></h3>
<p>The formula is this: 7-15-70. It is difficult to immediately understand what these three numbers mean. However, these numbers make it almost impossible for a starling to be caught by its enemies.</p>
<p>We can explain the meaning of these numbers as follows: Whatever 7 close neighbors do, imitate them; constantly fly at least 15 cm from them; do not ever fly more than 70 km per hour. There is one more rule: Keep your distance from all enemies. When these principles are followed, enormous protection follows.</p>
<p>Flocks of starlings are comprised of several thousands of birds that move like one organism. In less than a second, the flock&#8217;s direction, size and breadth can change. In this situation their enemies do not have much of a chance against such a tight mass. For predatory birds need to determine their targets in order to catch their prey. The fast and sudden movements of the flock prevent attack from predatory birds. In spite of this, predators who attempt attack go back empty-handed. For acting like one body, this enormous flock encompasses the enemy in a counter current with the waves they create and narrow it down until the bird can no longer fly. Becoming dazed, the predatory bird has no choice but to fly away from the flock. This instructive action of the starlings brings to mind the Qur&#8217;anic verse: &#8220;There is not an animal (that lives) on the earth, not a being that flies on its wings, but (forms part of) communities like you&#8221; (6:38).</p>
<p>The world&#8217;s best camera can see objects as big as a mouse from a height of 300 meters. This is an amazing thing, but even so, no camera can compare in any respect to an eagle&#8217;s eyes.</p>
<h3><b>Can eagles see from the side?</b></h3>
<p>The world&#8217;s best camera can see objects as big as a mouse from a height of 300 meters. This is an amazing thing, but even so, no camera can compare in any respect to an eagle&#8217;s eyes. Eagles can clearly see their targets from a distance of more than 1,000 meters. Eagles can even see a fish in fine detail from this distance. This special quality bestowed upon eagles is something technology would have difficulty imitating. For the lens of the eagle&#8217;s eye is soft contrary to human eyes&#8217; and it sees clearly more quickly and it more greatly magnifies its object. In addition, each of the eyes of the eagle has two separate vision centers. This allows the birds to see clearly both in front of them and at their sides. To attain this perfect vision, more than a million light receiving cells are on duty in each square millimeter of the retina. Comparing this to a human eye, a person has 200,000 cells in the same unit of space in the retina. Due to this structure of the retina and lens, an eagle&#8217;s eyes are as large as a human being&#8217;s eyes. If a human eye were to have the same capability, it would have to be as large as an apple. Because a human does not need to hunt like an eagle, he was not burdened with such big eyes.</p>
<h3><b>How much can a brain be shaken? </b></h3>
<p>G-force expresses changes in a body&#8217;s weight caused by acceleration. For example, when a jet is climbing towards the sky, the gravity a pilot is subject to increases immensely and his blood puts a lot of pressure on the veins in his legs. A space vehicle has 3 G when it takes off; a war plane has an average of 10 G; and a car&#8217;s peak force is 120 G when it crashes head on at full speed. With every peck, a woodpecker&#8217;s beak reaches 1,200 G in a way that is hard to believe. In other words, it is like the bird&#8217;s head hits a cement wall at a speed of 25 km per hour, and the woodpecker does this 20 times a second.</p>
<p>Experiencing pressures greater than 14 G is deadly for a human being. In comparison, woodpeckers have been given the ability to endure several hundred times what astronauts experience in their landings. This is only possible with a very special histological/anatomic structure and a skull created with perfect proportions. With the beak hitting a tree in a hard manner, a woodpecker&#8217;s brain almost completely fills its skull in order to prevent a trauma from developing. Created with a spongy structure, its bone structure acts as a shock absorber. The head and nape of the neck muscles contract towards the place it has hit and the waves from the blow become harmless. Even the lower part of the tongue is wound around the skull once in order to secure the brain and protect it from shaking. This situation does not create a problem or difficulty for woodpeckers which hit their heads against trees for a handful of larva, for they have been prepared for these conditions in their creation.</p>
<h3><b>Small birds creating the power of a hurricane</b></h3>
<p>Having a spread of 35 cm between two wings when they are opened, swallows weigh less than a normal size lighter. At first glance the apparent body structure of swallows suggests that they should only display an average flight capability with their deficient ability to maneuver. However, when we go out into nature and see swallows soaring in the countryside, we see that the situation is not like that at all. With the amazing way in which they were created, swallows succeed in doing a job that appears to be almost impossible physically. These birds can pass with jet speed through a space only 2 cm wider than their bodies. They succeed in this by flapping their wings rhythmically without stopping. Researchers have determined that they do this by means of a wing structure that moves with a special mechanism. The upper part of the wings of swallows can turn the air into an eddy. With the pressure created by this eddy, a great power of lifting and balancing occurs. The birds virtually fly with the power of hurricanes. Until now, this style of flying was only known to exist with insects. By seemingly gluing their wings to their bodies with this wonderful mechanism bestowed by the Creator, swallows easily pass through difficult places. Consequently, swallows can make 90-degree turns at astonishing speeds. Supersonic planes also benefit by generating these same kind of mini-hurricanes.</p>
<h3><b>Can there be flying submarines?</b></h3>
<p>Every year in May, tens of thousands of sharks, whales and dolphins come to the South African coastlines because of the schools of sardines (Sardinella). However, the strongest sardine hunter is not under water; it is a bird eyeing its prey from 30 meters high. The northern gannet (Morus capensis) a much better hunter than other sea birds, has a perfect body structure. While even sharks can only catch one out of two prey, the northern gannet&#8217;s perfect hunting techniques enable it to make a record success. The first reason for this is its reaching its target quickly and directly; the second reason is its being able to move about comfortably under water. These sea birds can go down 10 meters at first and then 20 meters by flapping their wings. They can dive at a speed of 120 km per hour. Their capability of holding oxygen-rich air in their air bags allows them to hunt up to one minute under water. Because they usually finish their prey under water, it is not common for them to bring it to the surface.</p>
<p>As research supported by technological possibilities increases, many more amazing biological mechanisms will be discovered. Doesn&#8217;t it strain reason to explain the existence of animate creatures that continue life with such fine calculations by means of chance?</p>
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		<title>Listening to a Fly</title>
		<link>https://fountainmagazine.com/all-issues/2004/issue-45-january-march-2004/listening-to-a-fly/</link>
		
		<dc:creator><![CDATA[Louima Cunningham]]></dc:creator>
		<pubDate>Thu, 01 Jan 2004 00:00:00 +0000</pubDate>
				<category><![CDATA[Issue 45 (January - March 2004)]]></category>
		<category><![CDATA[create]]></category>
		<category><![CDATA[creatures]]></category>
		<category><![CDATA[eat]]></category>
		<category><![CDATA[eggs]]></category>
		<category><![CDATA[enzymes]]></category>
		<category><![CDATA[flies]]></category>
		<category><![CDATA[fly]]></category>
		<category><![CDATA[flying]]></category>
		<category><![CDATA[food]]></category>
		<category><![CDATA[germs]]></category>
		<category><![CDATA[god]]></category>
		<category><![CDATA[larvae]]></category>
		<category><![CDATA[organs]]></category>
		<category><![CDATA[people]]></category>
		<category><![CDATA[produce]]></category>
		<category><![CDATA[See-Think-Believe]]></category>
		<category><![CDATA[wings]]></category>
		<guid isPermaLink="false">http://107.21.79.195/all-issues/2004/issue-45-january-march-2004/listening-to-a-fly/</guid>

					<description><![CDATA[&#8220;Surely, those whom you invoke, apart from God, will never create a fly even if they combine together for the purpose. If the fly takes something from them, they cannot rescue it from him.&#8221;; (Qur&#8217;an 22:73) Good day my dear friends! I know you are tired of me, I bother you so often, especially in [&#8230;]]]></description>
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<p>&#8220;Surely, those whom you invoke, apart from God, will never create a fly even if they combine together for the purpose. If the fly takes something from them, they cannot rescue it from him.&#8221;; (Qur&#8217;an 22:73)</p>
</blockquote>
<p>Good day my dear friends! I know you are tired of me, I bother you so often, especially in hot weather; but would you mind listening to me a little? I don&#8217;t understand why you are so proud! Did God create just you, and someone else created me? Some people do claim that I and all the other creatures evolved just by chance, in a process they call evolution, but I wouldn&#8217;t pay attention to them if I were you. Our Lord, God, created you and me, and the whole universe. Then why do you see me as being so unimportant? Of course, my Lord made humans superior and gave them an honorable place in this world, but this is only for those humans who recognize God Almighty and who pray to Him. If someone does not recognize the Creator, then this person will fall lower than me; I know my Lord, and I do not change my behavior. I don&#8217;t do anything but what He taught me. True, I am not tested as you all are, but I am happy with my lot. I carry out my duties obediently.</p>
<p>Although I do many useful things, most of you (except for the zoologists among you) aren&#8217;t aware of what my uses are. Some people even say, &#8220;Why has this black bug been created? It is of no use.&#8221;</p>
<p>If you just look at my wings, you can see that they are like a perfect work of art. Think about it, what would be more difficult, producing a large watch or a small and sophisticated one? Obviously producing a small watch is much more complicated. But one must remember that nothing is easy or difficult for God, He just says &#8220;Be&#8221; and He can create anything. By saying, &#8220;Be&#8221; He can create a microorganism or an elephant in an instant.</p>
<p>Just as you have organs that carry out the biological functions in your body that are necessary for your survival, I also have organs and systems in my body which carry out similar functions. The only difference between yours and mine is their structure and working principle. For instance, we both have hearts. Your heart pumps the blood to the body via the veins, and my heart pumps the blood to the spaces between my organs. You use your lungs for breathing while I have capillary tubes called trachea which transfer air directly to my tissues. The organs in my head are composed of many small particles. Each one of my eyes is created from hundreds of small hexagonal structures called ommatidia. Each has its own lens, a pigment cell that isolates it from the others, and a crystal cone. A special protein called chitin covers my body. Each one of my hairs acts as a special receiver, allowing me to detect all vibrations. Chitin is made up of a protein, which is durable and not permeable to water.</p>
<p>My mouth is shaped like a tube, while my tongue is like a sponge, helping me to taste my food. My feet, made up of chitin, are very thin and formed of many parts with a hook at the tip, making it easy for me to climb vertical surfaces.</p>
<p>There are hollow tubes in my wings, making them very light and strong. The hammer-like organs (halter organs) under my wings help me to balance while flying. There are some know-it-alls out there who claim that these organs were secondary wings that lost their function during evolution, but they seem to forget that there are many insects that have secondary wings. If this is so, why did I need to &#8220;lose&#8221; mine? It is hard to understand why these people do not try to understand reality. Actually, God created me with one pair of wings and two organs to help with balancing. These organs have nothing to do with mutations, adaptation, selection or evolution. Although my ancestors did mutate at times as all living things have done, we have never changed or evolved. Some of us are weak and some are strong; this is a rule of God. This rule is necessary for the ecological balance to be maintained. Some flies will be food for other living creatures, while some will survive to produce more flies. I have not heard of any other flies evolving into a new living creature.</p>
<p>I can fly better than you. You have imagination and knowledge, and you have the ability to improve yourselves, yet you still have not been able to invent a machine that can fly as well as I can. I can turn a somersault in a tight space. I can walk on the ceiling. I can sense the approach of your hand. I can take off so easily that I do not even need a &#8220;runway&#8221; like airplanes do before taking off. Airplanes can be used for destroying other things, but us flies help to build a better world. My Creator (God) has given me coordination in flight; I do not crash into other things and do not cause any damage while flying. The Qur&#8217;an (22:73) says: &#8220;Oh mankind! A parable is set forth, so listen to it: Surely, those whom you invoke, apart from God, will never create a fly even if they combine together for the purpose. If the fly takes something from them, they cannot rescue it from him.&#8221;</p>
<p>The Qur&#8217;an is a miraculous book; yet, unfortunately some people do not understand this yet. Even if all human beings were to work together, they would not be able to build a small &#8220;fly&#8221;. If I take something from you, you cannot get it back from me. For example, when I snatch a piece of your food, I simply pour digestive enzymes on it and it melts. These enzymes break the food into pieces and make them liquid. Then I am able to drink this liquid. Well now, it would be impossible for you to convert this food back to its original form. Let me show you my nutrition cycle on the right.</p>
<p>When someone mentions the words &#8220;flight and insect&#8221;, it is most normal to think of only one insect, the common house fly, but there are in fact many species of flying insects: approximately 90,000. Since we have wings, we are all called &#8220;diptera&#8221;. There are many of us on the earth; from this one can conclude that there will be useful as well as harmful insects among us. Some of our friends take pollen from flower to flower, making honey for you to eat. We eat a variety of foods; some eat meat, some eat vegetables, while others eat fruit.</p>
<p>My friends and I who belong to the Musca type are the most frequently encountered flies in your neighborhood. We, like the other species of flying insects, increase our reproduction rate with increases in temperature. We produce large numbers of eggs. The maggots that you see in rotten food are in fact my larvae. The female fly leaves her eggs on the food you leave out in the open. These eggs hatch in a few days, the time being longer or shorter depending on the temperature. The larvae have a great appetite for everything and they grow fast as they eat everything they encounter. Then they enter a dormant period and retreat into cocoons. After a short while, they come out with bodies that are totally different anatomically. If you were to tell this to someone without a great deal of know-ledge, they would never believe that these crawling larvae will turn into flying creatures one day. It is hard to predict or understand such a huge change. There lies a great wisdom in both our forms. For example, if we did not exist, only bacteria would be able to help decay the dead and this would take too long. But, thanks to my larvae and their presence everywhere in large numbers, this process is completed in a matter of few days. Due to their speedy consumption of decaying matter, maggots have been used often in medicine. They have been used to get rid of decaying tissue on the wounds that aren&#8217;t healing, and in this way they speed up the healing process.</p>
<p>Now, I also want to remind you of an unfairness that you do to me and all other flies. As you know, our eggs develop and spread fast during the warm summer season; each of us can produce hundreds of eggs. We go all over the place to find food and sometimes we find it in your trash or in animal droppings. Those who see us in these places mistakenly accuse us of carrying and spreading disease. But the reverse is true; we consume the germs that spread quickly in hot weather. These germs grow on food all by themselves, we don&#8217;t produce them. Germs are living creatures too, and they use their abilities bestowed on them by God to grow everywhere. All we do is clean the environment by eating them as we feed. We are able to digest germs thanks to the strong digestive enzymes that we carry. Despite what is believed, I am a clean animal. I clean myself all the time, using the digestive enzymes in my saliva. If it weren&#8217;t for me, the germs would grow and spread faster.</p>
<p>I hope that from now on you won&#8217;t try to shoo me away when you see me on your hand. Instead, I hope that you will watch how I move and observe me more closely; witness the fine art in me. When you think about me, consider what I have told you. Don&#8217;t you think that you should change your opinion about me?</p>
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		<title>Birds: Colurful Guests in our World</title>
		<link>https://fountainmagazine.com/all-issues/1997/issue-19-july-september-1997/birds-colurful-guests-in-our-world/</link>
		
		<dc:creator><![CDATA[Louima Cunningham]]></dc:creator>
		<pubDate>Tue, 01 Jul 1997 00:00:00 +0000</pubDate>
				<category><![CDATA[Issue 19 (July - September 1997)]]></category>
		<category><![CDATA[air]]></category>
		<category><![CDATA[animal]]></category>
		<category><![CDATA[animals]]></category>
		<category><![CDATA[bird]]></category>
		<category><![CDATA[birds]]></category>
		<category><![CDATA[body]]></category>
		<category><![CDATA[bones]]></category>
		<category><![CDATA[feathers]]></category>
		<category><![CDATA[flight]]></category>
		<category><![CDATA[flying]]></category>
		<category><![CDATA[food]]></category>
		<category><![CDATA[high]]></category>
		<category><![CDATA[magnetic]]></category>
		<category><![CDATA[Science]]></category>
		<category><![CDATA[species]]></category>
		<category><![CDATA[structure]]></category>
		<category><![CDATA[water]]></category>
		<category><![CDATA[weight]]></category>
		<category><![CDATA[wing]]></category>
		<category><![CDATA[wings]]></category>
		<guid isPermaLink="false">http://107.21.79.195/all-issues/1997/issue-19-july-september-1997/birds-colurful-guests-in-our-world/</guid>

					<description><![CDATA[Everything in nature is balanced and created according to laws, proportion, and measure. Nothing in the world is created in vain; rather, all things manifest God’s Will behind the veil of natural causes. If we look at nature around us, we will observe many magnificent creatures, but human beings have always found birds particularly fascinating. [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>Everything in nature is balanced and created according to laws, proportion, and measure. Nothing in the world is created in vain; rather, all things manifest God’s Will behind the veil of natural causes. If we look at nature around us, we will observe many magnificent creatures, but human beings have always found birds particularly fascinating.</p>
<p>Birds, class Aves, are the only animals that have feathers. Aves is a large, highly diverse class with 8,600 species of water birds, songbirds, and birds of prey, including huge flightless runners, deep divers, and migratory species that travel thousands of miles each year. Although most birds have similar body structures, taxonomists, those who classify and name things such as animals and plants in groups, use variations in bone structure, muscles, and internal organs to distinguish one order from another. Variations in the shape and structure of the bills, wings, tails, and feet are also useful for classification and identification. Birds inhabit a wide variety of habitats and can be found on all the continents, most islands, and even on the open sea. They also have a wide range of size. The largest birds are the ostriches of Africa, up to 2m tall and weighing 136kg, and the great condors of the Americas, with wingspreads of up to 3m. The smallest known bird is Helena’s humming bird of Cuba, less than 6cm long and weighing less than 4g.</p>
<p>The skeleton system of birds is highly adapted for flight. In spite of its low weight, a bird’s skeleton is extremely strong. Hollow and fused bones are the two main bone types. Most bones` being hollow lessens overall body weight making flight more efficient. The skeleton of a bird is much lighter than any other kind of warm-blooded animal. However, this is achieved at a cost, and the skull of a bird is thin and susceptible to fracturing. Further lightening of the bird`s head has also been made possible by the absence of teeth. The other noticeable feature of a bird’s skull is the size of the eye sockets, to house the large eyes. This is probably because vision is a bird’s most crucial sense. The skeletal structure of the wing is relatively constant among the different species, but the actual shape of the feathers can be quite variable, depending on the flying capabilities of the species concerned. To provide effective thrust, the bones in the wing move together. As the bird’s wing beats downwards, special bones prevent its chest from being crushed. The thrust of the wing articulates with the scapula on each side of the body. The corocaid and the wishbone also provide reinforcement. The chest cavity is reinforced by the unusual structure of the ribs. The ribs have projections, known as incinerate process, which are directed backwards, overlapping each other. These help to provide support, especially in diving birds. In cross section, the wings are honeycombed. During flight, this lightens the load on the pectoral muscles which, attached to the keel of the sternum, may account for half of the birds body weight.</p>
<p>Flight is one of the most outstanding characteristics of birds. A bird’s body is adapted to meet the two major requirements for flight, which are low weight and high power. Unlike other vertebrates a bird has a skeleton that is very light in relation to body size, e.g. a pigeon’s skeleton accounts for only 4.4 per cent of its body weight. Birds have a compact, streamlined body, and the fusion of many of the bones gives the body the rigidity needed for flying. A birds wing bone is thin and hollow, with criss-cross reinforcements on the inside which provide support while adding little weight. Besides the unusual structure of bones, it is the presence of feathers that distinguishes birds from all other creatures that have conquered flight. Feathers are made of dead cells, and become dehydrated and are exceedingly light. Thus, they can be large and form the flight surface of the wings and tail without weighing much and without being susceptible to water or heat loss. Along with keeping a birds body warm, feathers function for flight. The long overlapping contour feathers streamline the body. These feathers form the wings and much of the tail. Wings made of contour feathers have much surface area and little weight. They are well adapted for fanning the air and for gliding on air currents.</p>
<p>The flight of birds is one of the most beautiful and wonderful things in nature. The make and arrangement of their feathers and bones, and their stream-lined shapes, from beak to tail, are instances of purposive adaptation. They soar with outstretched wings; they dart with folded wings. Their upward and downward mobility, as well as their stability in the air, and when they rest on their feet, have given many ideas to man in the science and art of aeronautics, But who taught or gave to birds this wonderful adaptation? None but God, Whose infinite Mercy provides for every creature just those conditions which are best adapted for its life. This is stated in a verse in the Qur’an (Mulk, 67.19):</p>
<p>Do they not observe the birds above them, spreading their wings and folding them in? None can uphold them except (God) Most Gracious: truly it is He that watches over all things. </p>
<p>Flying techniques depend on the principles of aerodynamics. Reducing air pressure and friction against the body requires perfect aerodynamic structure. Up to recent times, a rain drop was accepted as the most perfect aerodynamic shape. However, the shape of a bird’s body is now accepted as the most perfect, and aircraft are designed according to the aerodynamic structure of birds. Compared with birds, the latest aircraft are still clumsier and have less agility than birds. Moreover, hypoxia, which is a deficiency of oxygen and results in drowsiness, mental fugitive, headache, and sometimes euphoria, affects pilots severely and can cause them to lose their consciousness on flying upward. But this is not a hindrance for birds because the air between their feathers, their bodies and wings is absorbing and reducing air pressure, Along with this ability, there are some movements which birds can do easily, such as turning sharply, doing somersaults, steep ascents and descents, whereas manmade flying machines face some serious risks in attempting the same movements. Birds can also glide for long periods without beating their wings while aeroplanes cannot sustain flight with stopped engines. Vertical take off and landing is something many flying animals such as bees and birds have been able to do for millions of years. The structure of birds has inspired engineers to design specific modifications in recent models of aircraft, such as the F-14, F-18, and M1G-25, It is true that producing an aircraft requires complex skills and knowledge, improved steadily over a long time. But is it not marvellous that birds have been demonstrating perfect flight for millions of years?</p>
<p>Birds have become adapted to a variety of environments, and various species have very different types of beaks, feet, wings, tails, and behavioural patterns. Although all birds must eat frequently (because they do not store much and yet must maintain a very high metabolic rate), their choice of food varies widely among species-seeds, fruits, worms, molluscs, rodents, rabbits, fish, snakes, lizards, even dead animals. The shape of the bills reflects the birds feeding habits. For example, nectar-feeders have narrow, pointed bills; finches, which consume large quantities of seed, have short, stout bills; and birds that eat insects and berries have a non-specific bill shape and so on.</p>
<p>Birds also lack teeth and this probably reduces body weight for flight. Instead of teeth, their mouths are modified into bills. In addition to this modification, birds have another adaptation for digesting food. A bird swallows small bits of gravel, which act as teeth in the gizzard, mechanically breaking down food. An interesting feature of the bird’s digestive system is the crop, an expanded, sack-like portion of the digestive tract below the oesophagus, in which food is temporarily stored, and where food such as hard seeds is softened with mucus. As a storage organ, the crop allows the bird to feed rapidly and to store large amounts of food. The bird also produces a white secretion, sometimes called crop milk’, which is rich in proteins and fats, and birds use this secretion to feed their young. Birds (except for the ostrich) do not possess a bladder, and so the uric acid passes directly, through the uretors, to the cloaca. After reabsorbing water back into the bird’s body, uric acid is excreted in the form of a semi-solid, whitish concentrate.</p>
<p>Birds often build up high concentrations in their bodies because they consume salty foods or sea water and lose water through evaporation in the urine and feces. To rid themselves of this excess salt, these animals have salt glands, special secretary organs near the eye or in the tongue that remove excess salt from the blood and secrete it in a solution of tear-like drops. Sensors in the wall of a bird’s heart apparently monitor the osmotic pressure of the blood and send nerve signals to the brain that trigger activation of the salt glands. Thus, the animal can drink sea water and yet, by excreting some of the water and all the salts, achieve a net water gain. This is an adaptive mechanism that helps to maintain a light body weight.</p>
<p>Birds have a well-developed nervous system with a brain. They rely heavily on vision; their eyes are proportionately larger than those of other vertebrates. Hearing is also well developed, in striking contrast to most animals, birds have developed the voice. The spoken word in human speech is different from the means of communication which birds have between each other. But no man can doubt that they have means of communication with each other, if he only observes the orderly flight of migratory birds which live in communities. This is also stated in the sacred book, Qur’an (al-Naml. 27.16):</p>
<p>And Solomon was David’s heir. He said: ‘O ye people! We have been taught the speech of Birds, and on us has been bestowed (a little) of all things.’ this is indeed Grace manifest (from God.)</p>
<p>Most birds have short simple calls that signal danger, or that influence feeding, flocking, or interaction between parent and young. Songs are usually more complex than calls and are performed mainly by males; they are related to reproduction, attracting and keeping a mate, claiming and defending territory.</p>
<p>Birds have a special system of air sacs that make fresh air almost continuously available to the sites of gas exchange. This provides the animal with the large quantities of oxygen needed for long distance, high- altitude flights &#8212; even a flight over Mt. Everest. A bird’s many air sacs also lower the body weight relative to its size. Air sacs lying between certain flight muscles are squeezed and relaxed on each stroke of the wing and this helps increase the amount of air during inhalation and exhalation. The faster the bird flies, the more rapid is the circulation of air through the lungs.</p>
<p>The paired lungs are relatively small and nine or more hollow air sacs are attached to the lungs and fill much of the body cavity. They are like balloons that lighten the body and serve as reservoirs for air that will later be needed. Experiments show that air flows continuously during both inhalation and exhalation, in one direction through the lungs, and the air is renewed during each inspiration. Therefore, oxygen and carbon dioxide exchange occurs in the lungs’ air capillaries during both inhalation and exhalation. The direction of blood flow in the lungs is opposite to the that of air flow through the parabrocni, tiny, thin-walled ducts in the lungs. This counter current flow increases the amount of oxygen that enters the blood.</p>
<p>This system enables birds to do the intense work of flying, even at high altitudes, and still maintain a high body temperature. Interestingly enough, rapid breathing also contributes to such a high performance; a Venezuela hummingbird, the sparkling violet ear, breathes 330 times per minute at sea level and 380 times per minute at high altitudes. This is a very high heart beat such as no other warm-blooded animal can accomplish.</p>
<p>The very effective respiratory and circulatory systems provide enough oxygen to the cells to permit a high metabolic rate. This is another important adaptation of birds: the maintenance of a high and constant body temperature in spite of changes in the external environment. High metabolic rate is necessary for the tremendous muscular activity required for flying. Some of the heat generated by metabolic activities is used to maintain a constant body temperature (between 35 and 42 degrees C) which permits birds to remain active in cold climates. Birds are among very few animals able to maintain a constant body temperature. Though birds are sometimes called warm-blooded, the preferred term is homeothermic.</p>
<p>One of the most interesting types of behaviour in birds is migration. Migration is the instinctive movement of animals, usually between their wintering grounds and their breeding grounds. Migration provides birds a better chance of surviving. By instinct, migrating birds make their long journeys each year to reach more favourable habitats. Some birds, such as the golden plover and arctic tern, fly from Alaska to Patagonia, South America, and back each year, flying 25,000km en route.</p>
<p>Migration is probably set in by several external stimuli, such as temperature and length of daylight. It is also triggered by the secretion of hormones. For many species the direction of migration is probably based on such factors as the bird’s observation of the sun and stars and even by the earth’s magnetic field. Few modern biological discoveries have been more surprising than the finding, in the 1970s, that bird’s, bacteria, and perhaps many other types of organisms orient their bodies to the earth’s magnetic field, How such animals can have acquired this magnificent ability is a question yet to be answered. How can living things perceive a force as elusive as magnetism?</p>
<p>Many birds and at least one mammal-the porpoise-have a small number of tiny crystals of magnetite (a form of iron oxide) in tissues near the brain. Likewise, magnetobacteria, have magnetite crystals in their cytoplasm and swim toward or away from the poles of an applied magnetic field. How some higher organisms use magnetic particles to sense the direction of the lines of magnetic force generated by the earth’s core remains a subject of research. One hypothesis suggests that the crystals in, for example, a pigeons head, function like tiny compass needless, and mechanoreceptors might detect their relative movement. Other work indicates that in the rat, changes in magnetic yield can alter enzyme activity and levels of melatonin in the pineal gland. Still other work suggests that regularly arrayed layers (also present in pineal glands) undergo certain changes as the head and eyes move relative to the earth’s magnetic field. They could allow the animal to sense magnetic fields, but not by a mechanoreceptor mechanism. Whatever the mechanisms, homing, migration and many other directional animal behaviours depend on detecting magnetic fields.</p>
<p>Birds with their perfect features are wonders in nature to be marvelled at as such. All creation, both animate and inanimate, celebrates Gods praise and bears witness to His power, wisdom and goodness. We can aspire to true knowledge of God through observing the wonders in nature. However, this is possible only if people do not insist on their positivistic viewpoint and see the direct manifestations of God’s Names in His creation:</p>
<blockquote>
<p><em>The seven heavens and the earth, and all beings therein, declare His glory: There is not a thing but celebrates His praise. And yet you understand not how they declare His glory! Truly, He is Off-Forbearing,’ Most Forgiving! (Bani Israll. 17.44)</em></p>
</blockquote>
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			</item>
		<item>
		<title>Birds and aeroplanes</title>
		<link>https://fountainmagazine.com/all-issues/1993/issue-2-april-june-1993/birds-and-aeroplanes/</link>
		
		<dc:creator><![CDATA[Louima Cunningham]]></dc:creator>
		<pubDate>Thu, 01 Apr 1993 00:00:00 +0000</pubDate>
				<category><![CDATA[Issue 2 (April - June 1993)]]></category>
		<category><![CDATA[aerodynamic]]></category>
		<category><![CDATA[aeroplanes]]></category>
		<category><![CDATA[air]]></category>
		<category><![CDATA[aircraft]]></category>
		<category><![CDATA[birds]]></category>
		<category><![CDATA[design]]></category>
		<category><![CDATA[designed]]></category>
		<category><![CDATA[drops]]></category>
		<category><![CDATA[feathers]]></category>
		<category><![CDATA[flight]]></category>
		<category><![CDATA[flying]]></category>
		<category><![CDATA[high]]></category>
		<category><![CDATA[perfect]]></category>
		<category><![CDATA[pressure]]></category>
		<category><![CDATA[rain]]></category>
		<category><![CDATA[reducing]]></category>
		<category><![CDATA[requires]]></category>
		<category><![CDATA[Science]]></category>
		<category><![CDATA[technique]]></category>
		<category><![CDATA[wing]]></category>
		<category><![CDATA[wings]]></category>
		<guid isPermaLink="false">http://107.21.79.195/all-issues/1993/issue-2-april-june-1993/birds-and-aeroplanes/</guid>

					<description><![CDATA[Flying techniques depend on the principles of aerodynamics. Reducing air pressure and friction against body and wings requires perfect aerodynamic structure. Many years ago scientists found that rain drops have the most perfect aerodynamic shape. To get maximum performance out of vehicles, they attempted to design them to resemble the characteristics of rain drops, but [&#8230;]]]></description>
										<content:encoded><![CDATA[<p>Flying techniques depend on the principles of aerodynamics. Reducing air pressure and friction against body and wings requires perfect aerodynamic structure. Many years ago scientists found that rain drops have the most perfect aerodynamic shape. To get maximum performance out of vehicles, they attempted to design them to resemble the characteristics of rain drops, but were not successful. Today’s most developed aircraft are not designed to simulate the form of rain drops. Instead, aircraft are designed to simulate the form of birds in order to minimize air pressure. The aerodynamic structure of birds enabled scientists to produce aircraft with high speed and high manoeuvrability, though they are not as perfect as birds.</p>
<p>The latest aircraft are still clumsier than birds and, by comparison with birds, have less agility. Moreover, upward flight affects pilots badly, while birds can do this very easily since the air between their feathers their bodies and wings is absorbing and reducing air pressure. Their mobile tail feathers enable them to turn sharply and even do somersaults. They are capable of steep descent or ascent without the risks aeroplanes face in doing the same. Land birds can fly or glide for long periods as well as land without heating their wings, whereas aeroplanes cannot sustain flight with stopped engines.</p>
<p>An important recent achievement in aircraft technology is vertical take off and landing &#8211; something many flying animals such as bees have been able to do for millions of years. Wing design, following the models of wing design in birds, has also been improved recently. The wings of birds follow hundreds of different designs, each with its peculiar advantages. They have many facilities. The most significant ability of birds’ wings is that they can be opened or folded up at will, thus giving flexibility in different flight conditions. This inspired engineers to design some aircraft like the F-14, F-18 and MIG-25 with wings that can be adjusted to some degree. The forward-arrow-angled wing is another projected innovation of recent technology in pursuit of what was given to birds in their creation. The airflow possible between the feathers of birds’ wings which significantly reduces air pressure is also being imitated. The producers of one model of the Boeing-747 have designed thousands of small cavities in the wings: the trials have been successful and the technique has been recommended for adaptation for use in all aircraft.</p>
<p>The scientist and engineer, whose final aim is to attain the flying technique of birds, know full well that they are just at the start of their quest. Birds and other flying animals do not have a consciousness like ours. How is it that they have achieved such a perfect compatibility with the air? It is true that producing an aircraft requires elaborate skills and elaborate knowledge, but is it not marvellous that birds demonstrate perfect flight? How is this? How does the possibility, the very idea, of flight arise?</p>
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