Wednesday, July 26, 2006

THE BIG BANG 2

  • The Big Crunch
  • (يوم نطوي السماء كطي السجل للكتب كما بدأنا أول خلق نعيده وعدًأ علينا إنا كنا فاعلين) الأنبياء: 104
    "The Day We roll up the heavens with the same parallel of a scroll rolling up books; as We produced the first creation We repeat it, a promise We have undertaken, verily We shall fulfill it" (21: 104).
  • Early commentators on the Holy Qur'an saw in this verse a divine promise to fold up the universe as a scroll of parchment folds the contents of books written on its inner side; and as Allah the Almighty created all this universe out of nothing, so can He destroy it to nothing, and create an entirely new one.
  • This interpretation is correct, but from the purely semantic analysis of the verse it clearly implies that in as much as the present-day universe started from an initial singularity, its end will come again to the same form, through the folding and rolling up of the universe as a scroll folds the letters, words and sentences written inside it as it is rolled up.
    In clear concordance with this interpretation, the most widely accepted "hot big bang model" for the origin of our expanding universe (Gamow, 1948), implies that such expansion cannot continue forever, rather it must end in a reverse process of contraction. Due to such contraction, all of the material of the universe would eventually come back to a central point (exactly similar to what the universe initially began with) in an implosion that would annihilate all forms of matter (atoms, molecules, compounds, planets, stars, galaxies, galactic clusters and super clusters, etc.). The result would be a singularity - identical to the initial one - that will explode and start the production of an earth other than ours and of heavens different from the present-day ones, in exactly the same way the initial singularity behaved.
  • Two Bangs Instead of One
  • The scientific reasoning behind this expectation is the fact that the motion of recession of the galaxies in our expanding universe does not proceed with constant velocity. The force of gravitation attracts these galaxies, supergalaxies and clusters to each other. This mutual attraction tends to decelerate the expansion, despite the very weak pull of gravity in view of the enormous inter-galactic distances. Nevertheless, this very small deceleration can become important in the long run, to the extent of hindering the process of expansion to a big halt. If this motion of galactic recession stops, the galaxies will begin to fall back towards each other. The universe will then start to contract, the galaxies will gradually come closer together, the gravitational pull will become gradually greater, and the velocities of contraction will become excessively larger with time. Finally, the galaxies will collide with one another, and the universe will collapse in a cosmic implosion, generally described as the "big crunch". This cosmic disaster will end by an extremely small, hot, dense singularity, identical to the initial singularity that exploded in the "first big bang". This second singularity is also expected to explode in a "second big bang", leading to a new cosmos.
  • The most widely accepted scenario of the “first big bang”, followed by the formation of smoky nebulae in which the nuclei of matter started to form, small and large scale structures started to condense from fluctuations in the density of matter that would have seeded galaxies, followed by the expansion (or inflation) of the universe, then its expected contraction (or big crunch), the expected " second big bang", followed by the creation of new cosmos, are beautifully described in the following 5 Qur'anic verses
    (21:30); (41:11); (51:47); (21:104) and (14:48).
  • The first four of these verses are mentioned above, while the fifth reads:
    "يوم تبدل الأرض غير الأرض والسماوات" إبراهيم
    "The day when the earth is replaced by a different earth, and so are the heavens. . . *" (14: 48).
    In any Islamic science curriculum such Qur'anic verses cannot be overlooked. These represent the word of The Creator, in an area (of origin, annihilation and recreation of the universe) that does not fall within the direct observation of man. As man's knowledge in this area cannot exceed the limit of theorization, these 5 Qur'anic verses come to us as a guiding light for choosing between heaps of human ideas that can do no more than confuse the human intellect

Sunday, July 16, 2006

JABIR IBN HAIYAN (the greatest chemical scientist)

  • JABIR IBN HAIYAN
    (Died 803 C.E.)
  • Jabir Ibn Haiyan, the alchemist Geber of the Middle Ages, is generally known as the father of chemistry. Abu Musa Jabir Ibn Hayyan, sometimes called al-Harrani and al-Sufi, was the son of the druggist (Attar). The precise date of his birth is the subject of some discussion, but it is established that he practised medicine and alchemy in Kufa around 776 C.E. He is reported to have studied under Imam Ja'far Sadiq and the Ummayed prince Khalid Ibn Yazid. In his early days, he practised medicine and was under the patronage of the Barmaki Vizir during the Abbssid Caliphate of Haroon al-Rashid. He shared some of the effects of the downfall of the Barmakis and was placed under house arrest in Kufa, where he died in 803 C.E.
    Jabir's major contribution was in the field of chemistry. He introduced experimental investigation into alchemy, which rapidly changed its character into modern chemistry. On the ruins of his well-known laboratory remained after centuries, but his fame rests on over 100 monumental treatises, of which 22 relate to chemistry and alchemy. His contribution of fundamental importance to chemistry includes perfection of scientific techniques such as crystalization, distillation, calcination, sublimation and evaporation and development of several instruments for the same. The fact of early development of chemistry as a distinct branch of science by the Arabs, instead of the earlier vague ideas, is well-established and the very name chemistry is derived from the Arabic word al-Kimya, which was studied and developed extensively by the Muslim scientists.
    Perhaps Jabir's major practical achievement was the discovery of mineral and others acids, which he prepared for the first time in his alembic (Anbique). Apart from several contributions of basic nature to alchemy, involving largely the preparation of new compounds and development of chemical methods, he also developed a number of applied chemical processes, thus becoming a pioneer in the field of applied science. His achievements in this field include preparation of various metals, development of steel, dyeing of cloth and tanning of leather, varnishing of water-proof cloth, use of manganese dioxide in glass-making, prevention of rusting, letterring in gold, identification of paints, greases, etc. During the course of these practical endeavours, he also developed aqua regia to dissolve gold. The alembic is his great invention, which made easy and systematic the process of distillation. Jabir laid great stress on experimentation and accuracy in his work.
    Based on their properties, he has described three distinct types of substances. First, spirits i.e. those which vaporise on heating, like camphor, arsenic and ammonium chloride; secondly, metals, for example, gold, silver, lead, copper, iron, and thirdly, the category of compounds which can be converted into powders. He thus paved the way for such later classification as metals, non-metals and volatile substances.
    Although known as an alchemist, he did not seem to have seriously pursued the preparation of noble metals as an alchemist; instead he devoted his effort to the development of basic chemical methods and study of mechanisms of chemical reactions in themselves and thus helped evolve chemistry as a science from the legends of alchemy. He emphasised that, in chemical reactions, definite quantities of various substances are involved and thus can be said to have paved the way for the law of constant proportions.
    A large number of books are included in his corpus. Apart from chemistry, he also contributed to other sciences such as medicine and astronomy. His books on chemistry, including his Kitab-al-Kimya, and Kitab al-Sab'een were translated into Latin and various European languages. These translations were popular in Europe for several centuries and have influenced the evolution of modern chemistry. Several technical terms devised by Jabir, such as alkali, are today found in various European languages and have become part of scientific vocabulary. Only a few of his books have been edited and published, while several others preserved in Arabic have yet to be annotated and published.
    Doubts have been expressed as to whether all the voluminous work included in the corpus is his own contribution or it contains later commentaries/additions by his followers. According to Sarton, the true worth of his work would only be known when all his books have been edited and published. His religious views and philosophical concepts embodied in the corpus have been criticised but, apart from the question of their authenticity, it is to be emphasised that the major contribution of Jabir lies in the field of chemistry and not in religion. His various breakthroughs e.g., preparation of acids for the first time, notably nitric, hydrochloric, citric and tartaric acids, and emphasis on systematic experimentation are outstanding and it is on the basis of such work that he can justly be regarded as the father of modern chemistry. In the words of Max Mayerhaff, the development of chemistry in Europe can be traced directly to Jabir Ibn Haiyan.

THE BIG BANG

  • The Big Bang .
  • In the Holy Quran we read:
    "أولم ير الذين كفروا أن السماوات والأرض كانتا رتقا ففتقناهما.." a (الأنبياء:30)
    "Haven't the unbelievers seen that the heavens and the earth were joined together (in one singularity), then we clove both of them asunder.” (21:30)
    This verse reflects the unity of creation as a dominating factor in the orderly form of the universe throughout its evolutionary history from one stage to another.

  • However, long before discovering the established phenomenon of the red shift, and its logical consequence of describing our universe as an expanding one, scientists used Einstein's theory of general relativity to extrapolate back in time and came to the striking conclusion that the universe had actually emerged from a single, unbelievably small, dense, hot region (the Hot Big Bang Model of the universe).
  • Formation of the Universe
    George Gamow formally proposed the model in 1948, after a lengthy discussion on other models of the universe by a number of scientists (e.g. Albert Einstein, 1917; William de Sitter, 1917; Alexander Friedmann, 1922; George Lemaiyre, 1927, etc.). Lemaitre is credited for introducing the idea of the "primeval atom", where galaxies originated as fragments ejected by the explosion of this atom.
  • In 1948, George Gamow modified Lemaitre's hypothesis into the "Big Bang theory" of the origin of the universe. In this theory, Gamow proposed that the universe was created in a gigantic explosion, whereby the various elements observed today were produced within the first few minutes after the Big Bang, as the extremely high temperature and density of the universe would fuse subatomic particles into the chemical elements.
    More recent calculations indicate that hydrogen and helium were the primary products of the Big Bang, with heavier elements being produced later within stars. The extremely high density within the "primeval atom" would cause the universe to expand rapidly. As it expanded, the smoky cloud of hydrogen and helium thus formed would cool and condense into nebulae stars, galaxies, clusters, super clusters, black holes, etc.
    This explains the original singularity of the universe; its explosion to a huge cloud of smoke from which the different heavenly bodies were formed by separation into eddies of various masses followed by condensation. The condensed bodies were arranged into stellar systems, clusters, galaxies, supergalaxies, etc., and the formed galaxies started to drift away from each other, causing the steady expansion of the universe.
  • The Glorious Quran describes these three successive stages in the verses (21: 30), (41: 11) and (21: 104). The first and the third of these verses are discussed above, while the second reads:
    "ثم استوى إلى السماء وهي دخان فقال لها وللأرض إئتيا طوعًا أو كرهًا قالتا أتينا طائعين"a (فصلت)
    "Then He (Allah) turned to the sky while it was smoke, and ordered it the earth to come into being willingly or unwillingly, they answered: we do come in willing obedience*" (41: 11)
    Big Bang Evidence
    As the universe expanded, the residual radiation (radiant heat) from the big bang continued to spread outwardly and to cool down gradually until about the 3K (= - 270°C) of today. This relic radiation was detected by radio astronomy in 1964, thus providing direct material evidence for "The Big Bang Model".
    Further evidence in support of this model is provided by the chemical composition of the observed universe. This amounts to about 74% hydrogen and 24 % helium (by mass), with only traces of other elements that in total amount to about 2%. All the recorded hydrogen in the observed universe and almost all the recorded helium are primordial, although some helium is currently produced by nuclear fusion of hydrogen in the sun as well as in other stars. Nevertheless, the total mass of hydrogen produced by the process of nuclear fusion within all the stars since the beginning of creation amounts to only a small percent.
    It is calculated that when the universe was 3 minutes old, its temperature must have been 109 °C (cf. Ohanian, 1985, p. D-6). At such a high temperature, hydrogen was subject to nuclear fusion, leading to the formation of helium. Theoretical calculations show that the fusion reactions led to an abundance of about 75% hydrogen and 25% helium, which is a remarkable agreement with the observed abundance. This further confirms the Hot Big Bang model for the creation of the universe. The Hot Big Bang model has steadily and successfully battled other explanations for the origin of the universe, and the model has been gradually refined with time.
  • Hot to Cold
    The "Hot Big Bang Model" for the origin of the universe envisages a beginning from an extremely small, hot, dense initial state some 10-15 billion years ago. This initial, minute body exploded and started to expand, forming the still expanding, vast, cold universe of today. The model predicts the formation of nuclei, the relative abundance of certain elements, and the existence and exact temperature of the cosmic microwave background radiation (or the glow of radiation left over from the initial explosion, which is currently permeating the universe).
    The prediction of the cosmic background radiation made by Ralph A. Alpher of Union College and Robert Herman of the University of Texas at Austin was confirmed by Arno Penzias and Robert W. Wilson of Bell Laboratories in 1964.
    Despite its success, the Hot Big Bang Model leaves many features of the universe unexplained. For example, the universe today includes a vast number of regions that could never have been in causal contact at any stage in their entire history. These regions are moving away from one another at such a rate that any information, even traveling at the speed of light, could not cover the distance between them. This "horizon problem" makes it difficult to account for the striking uniformity of the cosmic background radiation (cf. J.J. Halliwell, 1991, p. 76). Other unexplained features in the Hot Big Bang Model include the "flatness problem", the origin of large scale structures such as galaxies, galactic clusters and super clusters, etc.
  • The Inflationary Universe
    In 1980, Alan H. Guth of M.I.T. suggested a further refinement of the Big Bang model that he called "the inflationary universe scenario". In this scenario, the universe is believed to have started with a very brief, but exceedingly rapid period of expansion (for about 10-30 second), in which matter consisted of scalar-field particles (white in the Hot Big Bang model, the matter content of the universe is presumed to have been a uniformly distributed plasma or dust).
    As mentioned by J.J. Halliwell (1991), the origin of the universe in the inflationary scenario can be explained as follows: by following the expansion of the universe backward in time, the size of this vast, complex universe tends towards zero. Here the strength of the gravitational field and the energy density of matter tend towards infinity. This means that the universe appears to have emerged from a singularity; a region of infinite curvature and energy density at which the known laws of physics break down. These conditions are a consequence of the famous " singularity theorems", proved in 1960 by Stephen W. Hawking and Roger Penrose of the University of Oxford. These theorems showed that under reasonable assumptions any model of the expanding universe extrapolated backward in time will encounter an initial singularity.
    The singularity theorems do not imply, however, that a singularity will physically occur. Rather, the theory predicting them - classical general relativity - breaks down at very high curvatures and must be superseded by the quantum theory. Near a singularity, space - time becomes highly curved; its volume shrinks to very small dimensions, and here only the quantum theory can be applied.
  • Quantum cosmologists began a few decades ago (since the 1960s) to address the problems of the origin and evolution of the universe in a more subtle way than that proposed by classical astronomy.
    Quantum cosmology attempts to describe a system - fundamentally - in terms of its wave function. Yet many conceptual and technical difficulties arise. At the singularity, space becomes infinitely small, and the energy density infinitely great. To look beyond such a moment requires a complete, manageable quantum theory of gravity, which is currently lacking.
    Whether to accept the Hot Big Bang model of the universe, or its modified inflationary scenario explanations on the basis of conventional or quantum astronomy, the established fact is that our universe emerged from a single, infinitesimally small, dense, hot source. To agree or differ on the events that unfolded since that moment, including the formation of matter, followed by its coalescence into galaxies, stars, planets and chemical systems, does not change the fact of the one singularity from which our universe was created.
  • The Quranic precedence with this fact at a time when nobody had the slightest knowledge of it, or even for several centuries after the revelation was received, is indeed most striking. The objective notion to this Quranic verse in the right context of a science course can indeed be spirit lifting and enlightening for the younger Muslim generations of students and faculty

Wednesday, July 12, 2006

THE GLORY OF ALLAH

    • looking to this pic ,look and c our Allah glo ry ,then imagine how Allah beauty is more than that beauty think in all that and then think how u will stand wh en ur end come and how will be ur work.
    • this amaz i ng pic is one from the infinity beauty sights that Allah made and u are one of these so r u really think again in ur life and what u do in it or will stay in ur faults ,r u will back to ur god or u will stay in urs .think again and choose ur dirty life with ur faults and sad or the true life with happiness .
    • this sight is one from alot of miracles that mentio n in our holly quraan.

Sunday, July 09, 2006

world cup

  • we all c the world cup ,it was very good and there r alot of matches r imagine like Portugal with england and argentina with mexico .
  • now it finished and i so so sad because of figo and zidane they will not play ,and i thought they r the best player in all the world .
  • but the question now r we will live to c a good player like them , and r their teams will have a player like them .
  • it is very hard .
  • however ronaldo and franc r very good with portugal or france but they will not be like them and will not have their skills .