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Papers on Science and Nature
Kevlar
Number of words: 583 | Number of pages: 3.... Compared to steel and concrete, 49's psi (pressure per square inch) is 525,000, steel's is 36,000, and concrete's is 3,000 (New Necessities). The blast suppression, or body armor, is strong enough to endure machine gun fire (up to .3 caliber), land mines, terroristic weapons, and a chainsaw (New Necessities). It does not melt, can stand temperatures up to 7,000 degrees Fahrenheit, absorbing vibration and energy, and will not stretch. Bullriders, military personnel in war, peace officers, racecar drivers, and many other people use this excellent invention (DuPont). DuPont makes flameproof suits out of 49 for fire fighters and h .....
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Larnyx Cancer
Number of words: 522 | Number of pages: 2.... go away are also signs of larynx cancer. Tumor development in the subglottis is very unusual and rare. As a tumor grows it may
cause pain, weight loss, bad breath, frequent choking on food, and hard swallowing. Only qualified doctors are able to tell if any of the signs are really symptoms of the cancer.
A person with larynx cancer can be treated according to the person’s age, general health, and preferences. The size of the tumor, location of the tumor, and whether the cancer has spread or not also plays a major role in determining the type of treatment. Treatment can be done by local therapy or systemic therapy. .....
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The Human Brain
Number of words: 2092 | Number of pages: 8.... These plates form the cranium. The cranium provides
maximum protection with minimum weight, the ideal combination. The other
twenty bones make up the face, jaw and other parts of the skull.
Another way the brain keeps it self safe is by keeping itself in
liquid. Nearly one fifth of the blood pumped by the heart is sent to the
brain. The brain then sends the blood through an intricate network of
blood vessels to where the blood is needed. Specialized blood vessels
called choroid plexuses produce a protective cerebrospinal fluid. This
fluid is what the brain literally floats in.
A third protective measure taken by the .....
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Mononucleosis 3
Number of words: 1912 | Number of pages: 7.... "season," although authorities in colleges and schools, where the disease has been well studied, report that they see most patients in the fall and early spring. Epidemics do not occur, but doctors have reported clustering of cases. Transmission: EBV, the virus that causes most cases of mononucleosis, infects and reproduces in the salivary glands. It also infects white blood cells called B cells. Direct contact with virus-infected saliva, such as through kissing, can transmit the virus and result in mononucleosis. Someone with mononucleosis, however, does not need to be isolated. Household members or college roommates have only a .....
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Gene Therapy 3
Number of words: 781 | Number of pages: 3.... society. As Thomas Jefferson stated in "The Declaration of Independence," "We hold these truths to be self- evident: that all men are created equal; that they are endowed by their Creator with certain inalienable rights; that among these are life, liberty, and the pursuit of happiness"(314). If we are told that we have the right to life, liberty, and the pursuit of happiness, then we should have the right to live with the homosexuality gene and have the right to sexual preference. No one should have to give up that freedom. A freedom that homosexuals would most likely consider a source of happiness. Homosexuals are happy with .....
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Renewables, The Energy Source For America’s Future
Number of words: 1078 | Number of pages: 4.... The finite reserves of fossil fuels are being depleted at a rate one hundred thousand times faster than they are being formed. As supplies decrease we become more and more dependent on the Middle Eastern countries for our supplies of oil, recently, fifty-two percent of imported oil came from such countries. The most significant drawback is the amount of pollution produced by fossil fuels.(5)
These negative impacts can be lessened and even eradicated through the use of renewable energy. There are several forms of renewable energy, with wind and solar power being the most effective.
Wind power is produced by numerous large str .....
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Weather Forecasting
Number of words: 968 | Number of pages: 4.... are people who interpret the weather, the reason I don't
say predict the weather is because even though all forecasters have the same
information and data at their fingertips, the way that they interpret what is in
front of them can be different. Meteorologists receive information from various
sources, but their interpretation of the data determines the accuracy of their
prediction.
Someone might ask, "If forecasters have so much information on a
particular area; how could they predict a flawed forecast ?" The answer to
that question lies in the fact that any one of a number of weather conditions
may ruin a forecas .....
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Pesticides
Number of words: 1990 | Number of pages: 8.... (NRDC), and Consumers Union (CU), the EPA has made a notable progress. Throughout the years, consumers have pushed for research of the chemicals and substances that produce agricultural and what these do to our internal system. Congressman, James J. Delaney was also convinced that too many pesticide chemicals were found in foods. So in 1958, the House Select Committee investigated the use of chemicals in food products and amended section 409 of the FFDCA, in result creating The Delaney Clause.
The bill The Delaney Clause was implemented to avoid carcinogenic in the United States food supply. According to Congress .....
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Desktop Videoconferencing
Number of words: 3016 | Number of pages: 11.... is a type of conferencing in which video cameras and microphones capture sight and sound for transmission over a communications network. Videoconferencing makes it possible to conduct meetings with participation of groups who are hundreds and thousands of miles apart (Senn, 1998).
As Joseph Jesson an information technology consultant at Amoco in Chicago put it the notion of was highlighted at the 1964 Worlds Fair in New York. It is now 1999 and the promises of upgraded are still on the rise. In the year of 2000 there will still be promises of upgrades as it has been with computers. As Videoconferencing h .....
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Darwin's Theory And Modern Genetics
Number of words: 324 | Number of pages: 2.... led to modern genetics. We now know chromosomes carry valuable information that determines characteristics in living species.
When you put these two discoveries together you really understand how animals have evolved to their currant state. When animals are born the have traits that help them live or inhibit their ability to live. If the die they cannot mate with other animals therefore they don’t pass on the traits that killed them. The animals that live pass on the chromosomes that helped them survive. In human populations this is also evident. In some areas of the world blonde hair is a common characteristic. Thes .....
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