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» Science Essays and Papers
The Comparative Abundance Of The Elements
<view this essay>.... within the first 20km of the
earth's surface. Of the 17 elements that make up 99.5%, the most abundant of
these are Oxygen 49.2%, Silicon 25%, and Aluminum 7.5%. Then the next most
abundant elements are Iron 4.7%, Calcium 3.4%, Sodium 2.6%, Potassium 2.4%,
Magnesium 1.9%, Hydrogen 0.9%, titanium 0.6%, Chlorine 0.2%, Phosphorus
Manganese and Carbon are all 0.1%, Sulfur 0.05% Barium 0.04%, Nitrogen 0.03% and
the rest of the elements on the periodic table take up about 0.5%.
The elements of the crust are graphed below, but only ones that are the
most abundant due to the fact that the abundance of the other elements of the
crust are too low to graph accurate .....
Number of words: 474 | Number of pages: 2 |
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Biological And Nuclear Weapons
<view this essay>.... are seeking to develop such weapons. Some of these countries pay for the technological secrets or for the actual ingredients for these weapons. One such case is that of Libyan dictator Muammar el-Qaddafi, who "was so fixated by the dream of owning atomic bombs that he allegedly offered to pay India the equivalent of its national debt- nearly $18 billion for the technology." But India refused to sell Qaddafi its technology.
Some of the countries that are suspected of having biological warfare programs are unfriendly toward the U.S. Some of these countries are located in the Middle East and some are signatories to the Biological Weapons Convention. This 197 .....
Number of words: 909 | Number of pages: 4 |
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The Laser
<view this essay>.... includes infra-red, radar,
television radio and micro- waves (past red on the spectrum), and on the other
end of the spectrum are the other invisible radiations, ultra- violet, X rays,
micro waves and gamma rays. The wavelength of the light is important to the
subject of the laser. A laser is made up of COHERENT light, a special kind of
light in which the wavelengths of the light are all the same length, and the
crests of these waves are all lined up, or in PHASE. The word Laser is an
acronym for Light Amplification by Stimulated Emission of Radiation. What does
that mean? Basically a laser is a device which produces and then amplifies light
waves and con .....
Number of words: 981 | Number of pages: 4 |
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Bacterial Resistance
<view this essay>.... from bacterial infections. An increasing amount of attention has been given to antibiotic resistance with each passing year and experts are optimistic for the future; however, the threat of exists today and is a major cause for concern.
The discovery of penicillin the 1940s proved to be the dawn of the antibiotic era. In less than two decades, major advancements had been made in the development of antibiotics. There were so many different antibiotics developed that doctors and scientists focused their attention on other problems plaguing the nation. Doctors prescribed antibiotics frequently, often when they were not even needed. According to a 1998 r .....
Number of words: 619 | Number of pages: 3 |
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Analysis On Electronic Data Imaging
<view this essay>.... exploratory research using primarily secondary resources we have developed the following overall market analysis:
Digital Imaging Conversion Services
Much to the dismay of many in the business world, the arrival of the "paperless office" has been slow coming. Even though the technology exists to almost eliminate paper documents, many businesses have never heard about it. This technology is collectively known as Document Imaging. Imaging has evolved out of the necessity for businesses to manage the ever-increasing amounts of information(Porter- Roth Associates, 1996). The following statistics are evidence of the massive amounts of paper that exist in Americ .....
Number of words: 2218 | Number of pages: 9 |
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Computer Education
<view this essay>.... the U.S.. began in the middle of the 1950s with an organized body of knowledge. Also Japanese the teaching of computer science has been developed in the same period. During 1955 to 1959, some universities developed their own computers. They organized short courses.
Computer technology comes from the U.S. to Japan. Usually a technology is developed in the U.S.. After that, it comes to Japan so Japanese is late at all and most manuals are written in English so it is easy to lean computer for people who speak English; however, most Japanese people who live in Japan cannot understand English so they have to translate English to Japanese to understand the manuals .....
Number of words: 271 | Number of pages: 1 |
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Nature Vs. Nurture
<view this essay>.... between the sexes. Gender expectations are the
stereotypes made about the social roles of men and women. “Experiments
show that many people do act to fulfill gender expectations. For example,
Mark Zanna and Susan Pack (1975) had college women write descriptions of
themselves for a tall, unattached, male senior whom they anticipated
meeting. Those expecting to meet a man who liked nontraditional women
described themselves as relatively nontraditional. Those led to think he
favored traditional gender roles described themselves as more traditionally
feminine” (Handout - Diversity and Community).
I believe that one's immediate family, rather than society, has .....
Number of words: 595 | Number of pages: 3 |
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Consciousness As Determined Through The Times
<view this essay>.... psychological view points. For instance the earlier views around the 19th century was diversely considered. Most perceived consciousness as a substance or "mental stuff" unlike an object from the physical world. Others deferred that the conscious mind was what separated man from lower forms of life. It is an attribute characterized by sensation and voluntary movement which described the difference between normal waking state of animals and men and their condition when asleep.2 Other descriptions included an analysis of consciousness as a form of relationship or act of the mind toward objects in nature, and a view that consciousness was a continuous fi .....
Number of words: 1041 | Number of pages: 4 |
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