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Thursday, March 11, 2010

Tips For Buying A Quality Microscope

When buying a microscope there are several things to consider. Though price will always play an important role in a purchase decision, it should not be the first thing that you should look for when buying a microscope. A microscope purchase is a big investment for most people, so you want to get the most out of you money. One common mistake is buying a microscope based on what it looks like in the picture. A microscope may look interesting and modern but is actually constructed very poorly.

One thing that must be decided before going any further is what you are planning to be studying with this microscope. If you want to study things such as blood, bacteria, algae or any smaller specimen you will want to choose a compound microscope. These specimens require a higher power of magnification in order to see all the details. A compound microscope generally has 3 or 4 objective lenses that range in power from 4x to 100x. Providing that you are using a standard 10x eyepiece, this will give you 40x to 1000x magnification. This is the standard in magnification for grades K-college. Some cheaply made microscopes claim to have up to 1200X-1400X magnification. These are microscopes to stay away from.

If you want to study specimens that are larger such as insects, leaves and rocks, you will want to choose a stereo microscope. These specimens require less magnification to see their detail. A stereo microscope has at least two eyepieces and provides a three dimensional image off the specimen you are looking at. Two common forms of stereo microscopes are dual power and zoom magnification. A dual power stereo microscope has two set magnifications, such as 2x and 4x objectives. Providing you are using standard 10x eyepieces, you will get 20x and 40x magnification. A zoom stereo microscope there is a continuous zoom range from its lowest power to its highest power. One such configuration would give you continuous zoom from 10x to 45x.

Now that you have decided what you want to study and which type of microscope is right for you, it is now time to decide on what brand to purchase. There are many sources of microscopes on the internet. One safe rule of thumb is to research several microscope sites and try to find a common brand carried by many companies. Many reputable manufacturers will not sell directly to the public but do have legitimate web sites where they can be contacted. This will allow you to see that the microscope is backed by a real company in case warranty work is ever needed. Many microscopes might meet the same specifications but if you want this instrument to last you will want to choose a reputable microscope manufacturer.

Metal construction, brass gears, approved electrical and glass optics is a must for any microscope.

One way to make sure that you are getting the best quality microscope is to use a reputable supplier. You want to trust that they did their research when they picked the microscopes to be in their product line. Since 1989, Capital Microscope Services, Inc. has done just that. We are committed to providing our customers with quality products at very affordable prices. You can rest assured that every product that we show on our website meets our rigid standards before we ever put them out there for you, the customer to buy. You may find cheaper microscopes out there but we feel that the microscopes we offer will give you the best instrument for your money. If you should have any questions concerning buying a new microscope, please don't hesitate to contact us.
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Quran and Science of Meterology

QURAN AND SCIENCE OF METEOROLOGY
Quran Treats the phenonomenon of Rain and Hail
By
Allama Muhammad Yousuf Gabriel
www.oqasa.org
shaukatawan@rocketmail.com

The Quran has claimed not once but twice in most explicit terms to contain all knowledge that concerned humanity. And has challenged the world to bring a chapter like it, when I was asked that Quran was not the book of science, it was only the book of religion. How therefore, the treatment of the subjects like atomic science, the atomic bombs and atomic radiations could be expected in a book of religion. My answer to this was and is that the Quran is a book of a religion indeed, but it is the book of a religion that is perfect and complete and may be expected to provide answer to every question that was concerned with the humanity. If the destruction of the habitations of Sodom and Gomorrah received a mention in it, while these habitations were no larger than a negligible part of a modern city, how then the mention of a destroyer which would not leave so much as a blade of grass unburnt from one end of the world to the other, could be ignored without damaging the claim to universality. The Quran must be expected to give an answer to the question of atomic annihilation of the world. Again it may be asked whether the Quran contains the outcome of the research of modern science of meteorology. The answer to this question is yes it does. Quran shows this in one sign (Ayat) of about forty words. Read the following from the Quran regarding the phenomenon of rain and hail:-
" Hast thou not seen that Allah gently driveth forward the clouds and gathereth them together, and then layeth them in heaps? Thou also seeth the rain which falleth from the midst thereof, and Allah sendeth down from heaven, from mountains wherein there is hail, He striketh therewith whom he pleaseth, and turneth the same from whom He pleaseth, the brightness of His lightening wanteth but little of taking away the sight".
( Quran XXIV - 43 )
" Have you not seen that God drives the clouds, then joins them together and puts them fold on fold. Then you see the rain fall through them; and He sends down hail from the sky where there are mountains of it, and strikes those with it whom. He will, and wards it off from whomsoever He pleaseth. His lightning could snatch away their eyes".
(Quran - An-Nur-43 The Light)
You have read it now, or you have heard it. And if you pen to be a meteorologist, how much of the science of modern meteorology you have discerned in it, so that after we have explained it, you might compare. To most of the readers of the Quran it is merely a matter of common observation which has been mentioned by the Quran ; whether in the translation or in the original Arabic text of the Quran. Let this be remembered, however, that the mysteries are revealed only in the original Arabic text and never in the translations. It is the Arabic text of the Quran that reveals the essence of the modern science of meteorology about the phenomenon of rain and hail. Read the Quran -An Noor-43 )
In the first sight there appears to be no scientific facts of the modern research, but by the grace of Al-mighty Allah there are scientific facts to be revealed to those possessed of knowledge, and sincere in their faith in the Quran. The original Arabic text of the Quran has miracles to reveal. Most complex, intricate and perplexing facts of science and philosophy may be found in the words and mysteries discovered. To a knowledgeable reader the world of the Quran appears like kaleidoscopic world. The words changing their forms and clows and assuming new forms and colours, astonishing and perplexing the poor human intellect. During my forty-year long research in the Quran more than once I went to sleep with satisfaction that I had exhausted the meanings of a certain sign. But next morning to my surprise I saw the same sign blossoming with fresh flowers that had exchanging colours and delightful fragrance.
Let it be remembered that the modern science of meteorology is of recent origin, while the Quran was revealed fourteen centuries ago. If therefore the discoveries of the mo dern meteorology are found in the Quran, there remains no doubt about the divine original of the Quran, and the Quran deserves to assume a unique place among the divine scriptures.
We will now interpret the sign (Ayat) of the Quran in the light of all the latest discoveries of science in the field of meteorology. It is generally observed by the Non-Muslims, that whenever a discovery of science appears, the Muslims prop up the Quran saying, Lo! here is it written in the Quran, why the Muslims cannot find these facts from the Quran before the discovery is declared by science. The answer to this objection is, that firstly the Quran is not the text book of science to teach the people the technique of producing the things that are produced by the science, rather the Quran observes and regulates the entire life of humanity, every aspect of it. Therefore the Quran has its own style of treating the subject of pure science. Secondly, the Quran would not like the appearance of certain things or their wrong use in order to keep the humanity safe from the noxious effects thereof. Therefore the Quran treats such subjects of science in its peculiar manner. For instance the Quran has treated the atomic science, the entire essence of the subject, but has not taught to build the atomic bombs. Thirdly, if the Quran had explained the inventions of science as we see them today and had used the terms as we hear them today, it is not difficult to imagine that the hearers of that time, would have stampeded away thrusting their fingers in their ears, yelling, " How impossible, how nonsensical, away, away to your rational creed, the creed of our fathers". The fate of Islam was thus no hidden secret. And it was a miracle of the Quran, to say a thing comprehensible and appealing to its first hearers, and conceal within the same language that could answer all that was to come in time in any form, scientific, philosophic, economical, social. Yet let it be understood that the corroboration of the Quran and science is a topic fraught with imminent dangers. Science changes while the Quran is constant. Once said, for-ever said. The corroborator therefore must have thorough knowledge of science, to discern the established facts from more theories and hypotheses, and should at the same time have the thorough knowledge of the Quran to its real mind. Otherwise there is a great possibility of wrecking the reputation of the Quran, and making this word of God about of ridicule, unrecking at the same time the doom of the corroborator himself. I have seen many a corroborator that blundered in this field and fell from the cliffs to the vale of ignominy. God save us from such a doom. I myself am a corroborator, but I weigh a thing a hundred times and pass many a sleepless nights before I find courage to pen a single fact or to bring it on record. Yet I pray to Allah, the Merciful to guide me aright in this hazardous field and let me have no personal or other consideration, and forgive any slip of fall. I am obliged to take to this field for no other reason than that it has become the inevitable necessity of these days. Otherwise the early authentic commentators of the Quran have left no point unambiguous.
Now let us revert to our topic in the name of Allah the Benign, the Merciful. Allah says:-
"(Alam Tara). Has thou not seen?" This question was first posed to the Holy Prophet (P.B.U.H) and his contemporary Arabs. Now it could be posed to the meteorologist. This is the marvellous feature of the All-time and eternal Quran.
Then :-
"(Annallaha Yuzji). That is God drives". It is to contradict the view of those who think that the laws of nature work on their own, or that the whole affair of creation is accidental only. Here the God asserts his complete control of the Phenomenon.
Then (Yuzji Sahaban). (Sahab) means a cloud, but the derivatives formed on its root (sahaba) give the meanings as, to drive along, to drag along, to withdraw, to recall, to retract etc. The modern meteorological science on this point says, " Previous to a thunderstorm, the clouds are in great commotion. Great masses being torn asunder, others uniting together. These clouds being electrified, some more some less strongly, act inductively on one another, and if a piece happens to be torn away with more than its fair share of electricity that has been induced into it, it may soar away intensely electrified, several such pieces may unite to form a big cloud".
Then The Quran says:-
" (Thumma Yuallifu Bainahu). That is thereafter affects between the different parts of the cloud a harmony and achieves affinity between them. Generally it is translated as " and gathereth them together". In order to know what sort of harmony and affinity is affected and achieved between the various parts of the cloud, let us read the following from the science of meteorology.
" To achieve the coalescence of the minute spherules of water into fallable rain drops, a proper electrical affinity, between a particle and a particle within the cloud and further, within the cloud and the earth has to be achieved. In the presence of a strong positive charge in the cloud the SPHERULES WOULD TEND TOWARDS SEPARATION, EXCLUDING ANY POSSIBILITY OF THEIR COALESCENCE. A charge of milder sort in the vicinity has been found to be helpful for the desired coalescence for the spherules into rain drops. The necessity of the ELECTRIC POTENTIAL and hence the electricity itself, having thus been established a slight ACIDIFICATION of the cloud water is to be UNDERSTOOD as a means to impart conductivity to the water, which in a state of its purity is a bad conductor of electricity".
Let the great masters of Chemistry read these chemical processes explained by the Quran.
Then the Quran says:-
" (Thumma Yajaluhu rukaaman)". That is then "layeth them in heaps". Let us read what the modern meteorological science says about the heaping up of the cloud. It says:-
" When the vapour in the air is condensed not through contact with cold bodies, but through the cooling of a mass of vapour -ladden air, then a cloud is formed. A cloud consists of fine drops of water. if it be near the ground it is called mist or fog. It would at the outset seem impossible to classify or account for the myriads of forms of the cloud, but when we come to observe and watch them closely, two main types of cloud-forms assert themselves. Those which appear in fillowy well-defined shapes, and those which spread over the heavens in a layer thick or thin, partial or complete. The former of these is called CUMULUS, a Latin word meaning HEAP, the latter STRATUS, a Latin word meaning A LAYER. These names are due to LUKE HORWARD (1802) and have been used by all cloud observers since his time. The meteorological science is of recent origin. It developed within the centuries of this modern age. Luke Horward (1802) first used the Terms CUMULUS and STRATUS".
The Quran has anticipated him by centuries. The word Rukaaman which the Quran has used means exactly the CUMULUS. So far as the Term STRATUS is concerned, the Quran has used it in another sign (verse) about the very same topic. The sign is as follows:
That is : " Allah is He who sendeth the wind so that they raise clouds, and spreadeth them along the sky as pleaseth Him. And forms them in layers, and thou seest the rain downpouring from within them".
( Quran XXX - 48 )
" It is God who sends the breezes that raise clouds, then spreads them over the sky as He please, fold on fold, then you see the drops of rain issue from between them. When He sends it down to those of His creatures as He will, they are filled with joy".
(Quran The Romans, 48)
The actual word is (Kisafan) which means to lay in layers, to stratify, to lay layer upon layer. It is exactly the term STRATUS, the term of Luke Horward. Though generally it is translated as, "causeth them to break". It is surprising to note, that the Quran anticipated Luke Horward (1802) by centuries. The words of the Quran thus are not only scientific but also prophetic.
Then the Quran says:-
(Fataral Wadaqa Yakhruju min khilaalihi). That is : Thou seest the rain which falleth from the midst thereof. Actual word is (Min Khilaalihi), that is the rain is pouring from the (khilal) of the cloud. The meaning of this word is pin, skewer, spit. The root of this word is (khallala) which means to acetify. "Khal" means vinegar. Now the necessity of the acidification of the cloud water we have already narrated in the previous pages. A charge of milder sort is essential to achieve the coalescence of the spherules. The charge necessitates electricity. But pure water is a bad conductor of electricity. It is necessary therefore to acetify the water to endue water with the quality of conductivity. Thus the role of the word (khilal ) in the phenomenon becomes clear, to mean that no (khilal) meant no rain, and therefore no life on earth.
The Quran further says:-
(wa yunazzilu min assamaae min jibaalin fiha min bardin). That is:- " And Allah sendeth down from heaven, from mountains wherein there is hail". First imagine a cloud like a mountain of hail. How beautiful is the mountain of white pearls and how exact but novel is the simile. But the point which attracts our attention is hidden in the word (jibaal) which means mountains. The root of this word is (jabala) which means to kneed. Perhaps the most astonishing discovery of the modern meteorological science is that no mist nor fog could be formed, unless there were present in the vapour-laden air particles of dust or sand to act as the nucleus for the spherules of water that constitute the fog. This has been proved, since air filtered through cotton wool, has no tendency towards fog formation. The hail pellets likewise have been found to have been built around a spec of dust acting as their Nucleus, a process in distinction from that of the formation of snow. Now let us see the word (jibaal) that is mountains used by the Quran. The word Jibaal has been derived from the root-verb (jabala) which means to kneed. Then imagine a cloud of rain or of hail, wherein every spherule has a spec of dust or sand though invisible to naked eye. Certainly the cloud appears like a mountain made of dust particles kneeded with water. Remarkable also is the role of mountains in the formation of rain.
Now in the end it may be asked that the Quran in this phenomenon has made no mention of the great role played by the air. It is the air that carries the moisture, and it is the air that wafts the clouds. without the air no rain would have been possible. The question takes our thought to another sign (Ayat) of the Quran which is identical with the sign which we are discussing, and has mentioned the role of air. In the previous pages we have alluded to sing just read:-
(Quran-Alarum -48)
(Allah-u-lazi yursilu-arriaha fatuseeru sahaban). That is, " He is Allah who sendeth the winds, so that they raise clouds".
( Quran XXX-48 )
The Quran's challenge, "Bring ye a chapter like unto it" stands good for every age, including this age of science. The knowledge of science shown by the Qruan is such that no scientist will ever think of being an equal to or like the Quran, the amazing word of Allah, the God of the worlds.
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