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» Science Essays and Papers
Acid Rain 7
<view this essay>.... naturally slightly acidic. It is caused by today's industry. When products are manufactured many chemicals are used to create it. However because of the difficulty and cost of properly disposing of these products they are often emitted into the atmosphere with little or no treatment. The term was first considered to be important about 20 years ago when scientists in Sweden and Norway first believed that acidic rain may be causing great ecological damage to the planet. The problem was that by the time that the scientist found the problem it was already very large. Detecting an acid lake is often quite difficult. A lake does not become acid over night. It happens .....
Number of words: 1863 | Number of pages: 7 |
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ALCOHOLISM
<view this essay>.... pleasure and relaxation that alcohol can bring to some, it can also destroy others self-wort and integrity.
Alcohol affects virtually everyone, whether the individual is himself an alcoholic, is the family member of one, or has been the victim of an alcohol related crime. In spite of the dangers alcohol presents,it is still in countless social cirles. Alcohol penetraes all ages, educational, occupational, and socioeconomical boundaries.
Each year it is estimated that ten percent of all deaths are related to alcohol abuse. Am astonishing fifty percent of all major automobile accidents, and murders are associated with alcohol. On and on the statistics point .....
Number of words: 722 | Number of pages: 3 |
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Earthquakes
<view this essay>.... in general and then about how predictions are made. Earthquake, “vibrations produced in the earth's crust when rocks in which elastic strain has been building up suddenly rupture, and then rebound.”(Associated Press 1993) The vibrations can range from barely noticeable to catastrophically destructive. Six kinds of shock waves are generated in the process. Two are classified as body waves-that is, they travel through the earth's interior-and the other four are surface waves. The waves are further differentiated by the kinds of motions they impart to rock particles. Primary or compressional waves (P waves) send particles oscillating back and forth in the same dir .....
Number of words: 1173 | Number of pages: 5 |
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Ivf - In Vitro Fertilisation
<view this essay>.... Gonadotropin and recombinant Follicle-Stimulating Hormone) to stimulate development of the ovarian follicles which contain eggs. Frequent blood tests are taken to
monitor hormone secretion from the ovary and pituitary gland.
- When eggs are ripe, they are retrieved by transvaginal needle aspiration, guided by ultrasound. At the same time, semen samples from the husband (or donor) are obtained. The most active and healthy sperm are selected by forcing
them to swim through a culture medium.
- The egg and sperm are placed together in a suitable medium for fertilisation to occur in a culture dish. If fertilisation does not occur after 72 hours, .....
Number of words: 1069 | Number of pages: 4 |
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Cisc And Risc Processor Technologies
<view this essay>.... this report you will be able to define the term CISC. Be able to list the characteristics of a CISC instruction set and also the decisions and philosophies which led to the development for this technology.
Also this report describes the RISC style of computer processor architecture. Which is replacing CISC in some uses. Define the term RISC. Describe the characteristics of RISC technology. And also point the advantages and disadvantages of using this technology.
At the end of this report you will also be able to describe the major differences between a CISC instruction set and a RISC instruction set and list some key advantages and disadvantages of .....
Number of words: 1812 | Number of pages: 7 |
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Pollution And The Environment
<view this essay>.... continue to do because it is putting a lot of sea life creatures in danger of being killed. Extinction is far too common these days for a lot of animals. Today, we have about half of the animals we did a long time ago. A big reason is due to pollution. These animals’ homes are taken away because of the trash content everywhere. It is not fair to these animals whose food and shelter always gets contaminated. When these animals get killed, it breaks a part of the food chain. If an animal is taken out of the chain, the other animals that eat that one will go hungry, therefore killing them off too. Contaminated food has already happened to the food humans eat. .....
Number of words: 767 | Number of pages: 3 |
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Leprosy
<view this essay>.... bacteria in test tubes. The normal form of seen in most cases is called dimorphous. This form is what a person first gets, but when the body can't fight it turns into lepromatous. This formattacks nerves, the skin, the mucous membranes, and the eyes.In most cases it is easy to detect the disease. At first many people will loose a sense of feeling in a patch of skin. Then after the loss of feeling in certain area the muscles may become paralyzed due to the damage of the nervous system. Many times since people loose feeling in certain areas of their body, injuries occur to them that are unnoticed and become infected. After the disease has settled into ones body .....
Number of words: 351 | Number of pages: 2 |
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A Brief History Of Clocks: From Thales To Ptolemy
<view this essay>.... the planets against the fixed position of the stars. Shortly after Archimedes, Ctesibus created the Clepsydra in the 2nd century BC. A more elaborate version of the common water clock, the Clepsydra was quite popular in ancient Greece. However, the development of stereography by Hipparchos in 150 BC. radically altered physical representations of the heavens. By integrating stereography with the Clepsydra and the celestial sphere, humanity was capable of creating more practical and accurate devices for measuring time—the anaphoric clock and the astrolabe. Although Ptolemy was familiar with both the anaphoric clock and the astrolabe, I believe that the developmen .....
Number of words: 4266 | Number of pages: 16 |
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