الوسم: البور

بليز ضروري ساعدوني ابغي درس فتح القسطنطينية على البور بوينت

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بور بوينت عن الصدقة

هلا

اريد بوربوينت ضرررووووووووووووووورى

ابا معلووووووووومات بسييييييييط او بوربينت عن المطر الحمضي دخييييييييييلكم حطوووووووه

بليز ارود بوربونت عن نهر النيل

اريد
بسرعة
ضروري عن نهر النيل

[color="purple<div tag="6|80|” >"]وانا بعد ابغي عن درس نهر النيل… بسرعة[/

السلام عليكم اعضاء المنتدى

أطلب منكم طل رجاءاً .. وآخر يوم للتليم غداً .. وبتروح علي 20 علامة لو ماسوته

هذا تقرير جاهز .. بس اريد منكم انكم تضعولي اياه ببرنامج البور بوينت ..

انه يكون في slides يعني شرائح للعرض .. وطبعاً يكون الموضوع مختصر ويحوي الأفكار الرئيسية

أررجوكم لاتخذلوني .. ابوس ريلكم !!

Scientists

* Introduction :

A scientist is a person who uses the scientific method to do research. William Whewell coined the word in 1833. Before that scientists were termed "natural philosophers" or "men of science".
Scientists are generally motivated, often from childhood, by a desire to understand why the world is as we see it and how it came to be. They exhibit a strong curiosity about Nature. Recognition by their peers and prestige are usually secondary motivations. Few scientists count generating personal wealth as an important driving force behind their science.
Science and technology have continually modified human existence. As a profession, the scientist of today is widely recognised. However, lay people in Western societies have little understanding of the day to day activities of professional scientists.
Scientists include theoreticians who mainly develop new models to explain existing data, and experimentalists who mainly test models by making measurements — though in practice the division between these activities is not clear-cut, and many scientists perform both. Mathematics is usually grouped with the sciences. Like other scientists, mathematicians start with hunches and then conduct symbolic or computational experiments to test them. Some of the greatest physicists have also been creative mathematicians. There is a continuum from the most theoretical to the most empirical scientists with no distinct boundaries. By personality, interests, training and professional activity, there is little difference between applied mathematicians and theoretical physicists.

* Presentation :

History

An early scientific method which emphasized experimentation was first used by the Iraqi Arab physicist and polymath Ibn al-Haytham (Alhazen), circa 1021 AD, in his Book of Optics, and he has been described as the "first scientist" for this reason.[2]
There are notable examples of people who have moved back and forth among disciplines. Such polymaths were common during the Islamic Golden Age and European Renaissance. A number of early scientists were priests, including the astronomer and physician Copernicus; and Gregor Mendel, whose discoveries on inheritance founded modern genetics, which provides a mechanism to explain Charles Darwin’s observations about evolution.

Descartes not only a pioneer of analytic geometry but formulated a theory of mechanics and advanced ideas about the origins of animal movement and perception. Vision interested the physicists Young and Helmholtz, who also studied optics, hearing and music. Newton extended Descartes’ mathematics by inventing calculus (contemporaneously with Leibniz). He provided a comprehensive formulation of classical mechanics and investigated light and optics. Fourier founded a new branch of mathematics — infinite, periodic series — studied heat flow and infrared radiation, and discovered the greenhouse effect. Von Neumann, Turing, Khinchin, Markov and Wiener, all mathematicians, made major contributions to science and probability theory, including the ideas behind computers, and some of the foundations of statistical mechanics and quantum mechanics. Many mathematically inclined scientists, including Galileo, were also musicians.
In the late 19th century, Louis Pasteur, an organic chemist, discovered that microorganisms can cause disease. A few years earlier, Oliver Wendell Holmes, Sr., the American physician, poet and essayist, noted that sepsis in women following childbirth was spread by the hands of doctors and nurses, four years before Semmelweis in Europe. There are many compelling stories in medicine and biology, such as the development of ideas about the circulation of blood from Galen to Harvey. The flowering of genetics and molecular biology in the 20th century is replete with famous names. Ram&oacute;n y Cajal won the Nobel Prize in 1906 for his remarkable observations in neuroanatomy.
Some see a dichotomy between experimental sciences and purely "observational" sciences such as astronomy, meteorology, oceanography and seismology. But astronomers have done basic research in optics, developed charge-coupled devices, and in recent decades have sent space probes to study other planets in addition to using the Hubble Telescope to probe the origins of the Universe some 14 billion years ago. Microwave spectroscopy has now identified dozens of organic molecules in interstellar space, requiring laboratory experimentation and computer simulation to confirm the observational data and starting a new branch of chemistry. Computer modeling and numerical methods are techniques required of students in every field of quantitative science.
Those considering science as a career often look to the frontiers. These include cosmology and biology, especially molecular biology and the human genome project. Other areas of active research include the exploration of matter at the scale of elementary particles as described by high-energy physics, and nanotechnology, which hopes to develop electronics including microscopic computers, and perhaps artificial intelligence. Although there have been remarkable discoveries with regard to brain function and neurotransmitters, the nature of the mind and human thought still remain.

Scientists and engineers

There is no sharp distinction between science and engineering, although engineers typically have practical goals in mind while scientists investigate fundamental phenomena. Both proceed from problems toward solutions. Scientists often perform engineering tasks in designing experimental equipment and building prototypes, and some engineers do first-rate scientific research. Mechanical, electrical, chemical and aerospace engineers are often at the forefront of investigating new phenomena and materials. Peter Debye received a degree in electrical engineering and a doctorate in physics before eventually winning a Nobel Prize in chemistry. Similarly, Paul Dirac, one of the founders of quantum mechanics, began his academic career as an electrical engineer before proceeding to mathematics and later physics. Claude Shannon, a theoretical engineer, founded modern information theory.

Types of scientists

· Archeologists
· Astronomers (including astrophysicists)
· Biologists (including botanists, entomologists, evolutionary biologists, ecologists, geneticists, herpetologists, ichthyologists, immunologists, lepidopterists, microbiologists, neuroscientists, ornithologists, paleontologists, pathologists, pharmacologists, physiologists, and zoologists)
· Chemists (including biochemists)
· Computer scientists
· Earth scientists: geologists (including mineralogists, seismologists, and volcanologists), hydrologists, glaciologists, limnologists, meteorologists, and oceanographers
· Mathematicians
· Physicists
· Psychologists
· Social scientists (including anthropologists, demographers, economists, geographers, linguists, political economists, political scientists, and sociologists)

* Conclusions :

Human is the basical element for development . We should save the evidence to the scientist to achieve his work and success

* References :

1. ^ William Whewell (1794-1866) gentleman of science. Retrieved on 2022-05-19.
2. ^ Bradley Steffens (2006). Ibn al-Haytham: First Scientist, Morgan Reynolds Publishing, ISBN 1599350246.
3. http://en.wikipedia.org/wiki/Scientist

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قام الأستاذ سمعان صادق موجه التربية الإسلامية يوم الأنين 18/2/2008 بعمل دورة تدريبية لمعلمي المادة في التقنيات و الوسائط التعليمية و الاستفادة منها في المواقف التعليمي و معالجة الأخطاء التي قد يقع فيها المعلمون أثناء إعداد الشرائح التعليمية على البور بوينت من حيث الخطوط و الألوان و الخلفيات و الأصوات وعرض نماذج للأخطاء وكيفية تخطيها.
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