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Science and Nature Term Papers and Reports |
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Atomic Bombs
1302 Words - 5 Pages.... The Manhattan Project was created by the United States government in 1942 to produce the first nuclear bomb. The official agency that produced the bomb was the Corps of Engineers’ Manhattan Engineer District, commanded by Major General Leslie R.Groves. He directed industrial and research activities at such sites as Oak Ridge, Tennessee, and Los Alamos, New Mexico (The World Book Encyclopedia 141). Here they designed to bombs that were later called “The Fat Man” and “The Little Boy”. There was later a movie named after the two bombs that showed how they were made and the
experiences that came with making them. A worker was killed during the final stages of ....
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Genetically Altered Foods
528 Words - 2 Pages.... convince the regulators that
the crops are safe. Those who protest have debated on a list of concerns dealing
with this issue. For example, one of which brings a question to the
environmental policies. It states that Stimulating the resistance of cslve use
or such herbicides (Nature 559). "
A lot of concern has come from one certain crop and that is maize, which was
altered to an extent. The development was done by a company known to be Swiss,
called "Ciba-Geiby". That which was debated dealt with the Advisory Committee
on Novel Foods and Processes (ACNFP) stating that "A gene resistant to the
antibiotic ampicillin used in an early stage of the developmental process, cou ....
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Effect On Pot
1467 Words - 6 Pages.... male sperm counts, causes chromosome damage, lowers
testosterone levels, and damages the lungs. Most of these claims, however, have been unreplicated in humans or have been contradicted
by other work. This section will address each of these reported negative side-effects. Various studies have claimed that cannabis destroys
brain cells. However, several other studies found no structural or neurochemical atrophy in the brain at all. Furthermore, it should be
noted that Heath's work was sharply criticized for avoiding safeguards of bias and reporting "changes" that occur normally in the
mammalian brain. Wu et al. found a correlation between cannabis use and low sperm co ....
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Global Warming
711 Words - 3 Pages.... in which a greenhouse traps heat,
hence the term. Environmental scientists are concerned that changes in the
variable contents of the atmosphere--particularly changes caused by human
activities--could cause the Earth's surface to warm up to a dangerous degree.
Since 1850 there has been a mean rise in global temperature of approximately 1°
C (approximately 1.8° F). Even a limited rise in average surface temperature
might lead to at least partial melting of the polar icecaps and hence a major
rise in sea level, along with other severe environmental disturbances. An
example of a runaway greenhouse effect is Earth's near-twin planetary neighbor
Venus. Because of Venus's t ....
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Endangered Species 2
3779 Words - 14 Pages.... has proved to be quite a challenge, all the more so since pandas are only receptive to breeding for a very brief period in late spring or early summer. Research efforts have, however, paid off. Since 1991 natural mating has resulted in eight births at the Wolong centre.
In addition to experience gained over the years at Wolong, the recent success of births can be attributed to improved cooperation between China's Ministry of Forestry and the country's zoos involved in panda breeding, as well as to an exchange of information and technology between Chinese and western scientists.
Some problems are, however, still experienced with animal husbandry, particularly the care and w ....
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Chicken Pox With Works Cited
1317 Words - 5 Pages.... from the Latin and Greek word exanthema, meaning ‘to break out,’ or, originally, ‘to bloom.’” Many people were misdiagnosed due to the similarities between these diseases, and the fact that they can occur in milder or more sever forms leading to an overlap of the most obvious symptoms. (7)
Chickenpox mostly occurs in children classifying it as a childhood disease although it can occur in adults who are not yet immune to it. This could lead to the belief of chickenpox being one of the oldest diseases. Since the chickenpox infection has two phases, one most common during childhood then a latent form that can become active again later in the persons life, doctors b ....
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Fetal Alcohol Syndrome 2
882 Words - 4 Pages.... if the mother refrains from drinking while pregnant. Drinking liquor at all during pregnancy is not advisable. There is no way of measuring how much alcohol one can consume before defects occur, and no proof that small amounts of liquor are safe. As little as one drink a day can cause a baby some degree of harm and interfere with their normal development.
The more the mother drinks the greater the risk of damage to the baby. "The Syndrome occurs in anywhere from point five to three live births per thousand in western countries…It is estimated that between thirty and forty percent of all woman who drink heavily during pregnancy will have a child afflicted with Fet ....
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Cyclohexanone
905 Words - 4 Pages.... energy excites a
quantized structure to a higher energy level. The type of excitation
depends on the wavelength of the light. Electrons are promoted to
higher orbirtals by ultraviolet or visible light, vibrations are excited by
infrared light, and rotations are excited by microwaves” (Tissue).
IR spectroscopy is the measurement of the wavelength and
intensity of the absorption of infrared light by a sample. The
wavelength of IR absorption bands are characteristic of specific types
of chemical bonds.
An IR spectrophotometer is an instrument which is designed to
obtain an infrared spectra of a molecule. An IR spectra is obt ....
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