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Essays on Science

Alcohol
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... an ic, is the family member of one, or has been the victim of an related crime. In spite of the dangers presents,it is still in countless social cirles. penetraes all ages, educational, occupational, and socioeconomical boundaries. Each year it is estimated that ten percent of all deaths are related to abuse. Am astonishing fifty percent of all major automobile accidents, and murders are associated with . On and on the statistics point to the enormous dangers of , yet it is a legalized drug. As bleak as this problems seems to be on society as a whole, it is also rueful for the poor soul who is dependent. The life span of the ic is about ten years shor ...



Breast Cancer In Women
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... self-examination. But how effective is the self-exam, and other forms of early detection, and does it really help to save women from the disease? This is a question I hope to address in the following research. Self examinations are the most commonly used tests used for detecting breast cancer among women today. The self exam is a simple exam that women can perform on their own with a few simple steps. Another way of detecting breast cancer is with a mammography. This is an X-ray that scans in make up of the breast to show whether there are and tumors. This is the most effective type of detection to date. (Cancer Facts, Detection. National Cancer Institute ...



Albert Einstein 2
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... get nothing but wet. Einstein did not act any different or better than anyone either. He did not dress any better, which was proved when Hoffman first met Einstein, he went into his office, and Einstein was sitting there in "ill-fitting cloths," and his hair "characteristic-ally awry". He did not speak or write better or more elegantly than anyone else either. He did not even have any special learning powers either. This was proved when Hoffman was writing equations on a blackboard when he was asked to slow down by Einstein, he said, "Please go slowly, I do not understand things quickly." Proving that he is not that much more intelligent than anyone else. ...



Cable Modems Are The Wave Of The Future
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... Cox Communications Inc. provides the best value for the dollar. They claim to beat any competitor in terms of price and value. Cox Communication Internet service is called @Home. The following is a current price list and is also available at www.coxrevolution.com. One important feature of Cox@Home is definitely the speed. Accessing the Internet is up to 100 times faster than a 28.8 modem because of the high bandwidth that is available through coaxial cable lines. A 28.8 modem can transmit data at a rate of 28,800 bits per second. Cox@Home cable modems can transmit data at 1,500,000 - 3,000,000 bits per second saving the user valuable time and unneeded bored ...



Constellations
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... (and probably even more!). The real purpose for the is to help us tell which stars are which, nothing more. On a really dark night, you can see about 1000 to 1500 stars. Trying to tell which is which is hard. The help by breaking up the sky into more manageable bits. They are used as mnemonics, or memory aids. For example, if you spot three bright stars in a row in the winter evening, you might realise, "Oh! That's part of Orion!" Suddenly, the rest of the constellation falls into place and you can declare: "There's Betelgeuse in Orion's left shoulder and Rigel is his foot." And once you recognise Orion, you can remember that Orion's Hunting Dogs are always n ...



Indicactor Lab
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... to my conclusion that substance B is spoiled milk. Test-tube C: Test-tube C had ammonia in it. The substance reacted to red litmus paper, and it had no effect on blue litmus paper. Phenolphthalein turned a hot pink color very quickly, and the pH value was about 11.5. The substance was clear and had a strong odor to it. These results led me to my conclusion that substance C is ammonia. Test-tube D: Test-tube D contained lemonade. The substance reacted to blue litmus paper, and red litmus underwent no changes. It had no effect on Phenolphthalein, and its pH value was 3, a strong acid. Knowing that lemons are very acidic, and that the substance was yellow and sweet s ...



How Technology Effects Modern America
Download This PaperWords: 1229 - Pages: 5

... software engineering tops the list. Carnegie Mellon University reports, “recruitment of it’s software engineering students is up this year by over 20%.” All engineering jobs are paying well, proving that highly skilled labor is what employers want! “There is clear evidence that the supply of workers in the [unskilled labor] categories already exceeds the demand for their services,” says L. Mishel, Research Director of Welfare Reform Network. In view of these facts, I wonder if these trends are good or bad for society. “The danger of the information age is that while in the short run it may be cheaper to replace workers with technology, in the long run it is potent ...



Extra-sensory Perception
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... of all sciences. "Most sciences try to explain observable phenomena, parapsychology tries to observe unexplainable phenomena." (http://wheel.ucdavis.edu) This science is widespread throughout the world and pops up in many different cultures. "Scientific methodology in this field dates from the foundation in London of the Society for Psychical Research (1882) which sought to distinguish psychic phenomena from spiritism and to investigate mediums and their activities." (http://wheel.ucdavis.edu) The research started over one hundred years ago and their goal was to understand why unexplainable phenomena was occurring. "Modern experiments, notably at Duke Univer ...



Endangered Species Study: Jaguars
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... These cats are of no harm to human life, most deaths that jaguars have had a part in were to protect themselves from being killed. Many jaguars just disappear from the pressures of being killed. While the animal is trying to change habitats they have died. The rain forests that the jaguars inhabit are being torn down to open up lumbering, farming, livestock raising, and other activities carried out by humans. Killing a jaguar is taking away a life that is doing no harm to the eco-system. A jaguars' way of living is much like that of a human, you don't see jaguars killing humans for their skin. III. Any endangered specie, including the jaguar, has many diff ...



History Of Cell Membrane
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... a membrane possessing special characteristics, and in 1900 Overton performed some simple but classical experiments which proposed that cell membranes were composed of lipids (1). By measuring the permeability of various compounds across the membrane of a frog muscle, Overton found some interesting results. He observed that lipophilic molecules (molecules attracted to fat solvents) could easily cross this cell membrane, however larger lipid insoluble molecules could not. He also observed that small polar molecules could slowly cross the membrane. Other experiments with the likes of hen eggs suggested the presence of a lipid layer in the membrane. These results be ...




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