I. Introduction Marie Curie’s work and achievements on radioactivity have impacted and benefited the world in numerous ways. Marie Curie’s contributions have led to many important discoveries in the scientific world. Marie Curie was most famous for her remarkable work in radioactivity. Due to her great effort in discovering two radioactive elements‚ Marie Curie received a Nobel Prize in Chemistry in 1911. The Nobel Prize is a prize that is annually awarded every year to people with outstanding
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Dr. John Andraos‚ http://www.careerchem.com/NAMED/Elements-Discoverers.pdf 1 NAMES OF SCIENTISTS ASSOCIATED WITH DISCOVERIES OF ELEMENTS OF PERIODIC TABLE © Dr. John Andraos 2002 - 2005 Department of Chemistry‚ York University 4700 Keele Street‚ Toronto‚ ONTARIO M3J 1P3‚ CANADA For suggestions‚ corrections‚ additional information‚ and comments please send e-mails to jandraos@yorku.ca http://www.chem.yorku.ca/NAMED/ Z‚ Element Symbol Discoverer Dates Nationality Place
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In January 2012‚ the Center for Disease Control and Prevention released their Preliminary Data for the Leading Causes of Death in the United States. Their report showed that cancer is ranked at number two once again. As cancer rates remain high‚ it becomes increasingly important to understand what kinds of carcinogens‚ or cancer-causing agents‚ are around us‚ and how much they impact us. The known carcinogens that are well documented in terms of cancer death rates include smoking‚ alcohol consumption
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one in the United States Government had thought seriously about the menace of organized‚ international terrorism‚ much less nuclear terrorism.” Further investigation proved the possibility of nuclear materials such as plutonium or highly enriched uranium being attained by terrorists more and more plausible. By the Mid 1980’s Special Bulletin‚ a television dramatization of a nuclear terrorist attack on the United States had been aired by the NBC and "The
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Radiological Weapons as Means of Attack Anthony H. Cordesman Radiological weapons are generally felt to be suitable largely for terror‚ political‚ and area denial purposes‚ rather than mass killings. Unlike nuclear weapons‚ they spread radioactive material contaminating personnel‚ equipment‚ facilities‚ and terrain. The radioactive material acts as a toxic chemical to which exposure eventually proves harmful or fatal. Radiation is energy that comes from a source and travels through some material
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Solar Energy‚ usually refers to the sun radiation Energy‚ in the modern society‚ generally used for power generation. Since the earth created creatures‚ those creatures depended on the heat and light of the sun‚ band also human beings knew to dry the objects in the sunlight‚ by which they kept food‚ such as salt-making and drying of salted fish‚ etc. But with the reduction of fossil fuel resources‚ then people are disposed to develop solar energy further. The methods of solar energy using include
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Local protestors started anti-nuclear movements‚ concerned about the safety of the nuclear power plant‚ the possible threat of nuclear weapons‚ the international transport of uranium and its effect on the environment. These anti-nuclear movements grew into non-governmental organizations and emerging within several countries (Kalmbach). The discussions on nuclear energy were no longer within the field of the experts and the government
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Otto Hahn was a German chemist who revolutionized the field of nuclear chemistry. Following a lifelong interest in chemistry‚ he found himself on the forefront of radiochemistry research in the early 20th century. Through a series of chance discoveries‚ he and his fellow researchers brought radiochemistry out of the realm of theoretical research and into actual practical science. One of the practical uses of this research led to the development of nuclear weapons. While Otto Hahn’s lifetime of education
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high-powered lasers‚ and rockets. In the 1959 meltdown‚ "an estimated 13‚000 curies of iodine-131 and 2‚600 curies of cesium-137 escaped fro the reactor" (Rutshman). Iodine-131 is a radioactive form of iodine and is produced in nuclear reactors when uranium is split. This form of iodine is very radioactive and very dangerous. Once this chemical is entered into the body‚ the radiation damages the thyroid‚ increasing the risk of cancer at a very high rate. Although radioactivity can only live for eight
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and starting with the boons‚ nuclear power stations requires lesser fuel then power stations which burn fossil fuels to produce the electrical power of the same amount. An illustration of the radioactive substance used by the nuclear power plant is uranium and plutonium.(Leh‚ Y. K. ‚Chuan‚ K. K.‚Chang‚ S. L. ‚2008‚ Radioactivity‚ p.534). Nuclear energy releases million times more energy if compared to other alternative such as hydro or wind energy.(Pandit‚ R‚ 2011‚Advantages and Disadvantages of Nuclear
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