Papers on Science and Environment
A Beginning And End
Words: 698 - Pages: 3.... its incipient decline.
Mother nature wakes after a long restful sleep, stands, claps her hands,
and calls spring to attention because this is the time of reawakening, a sudden
surprising emergence after a period of concealed existence. I rise early
because the days are becoming longer now. As I walk and explore this new
morning, I cannot help but notice the activity that surrounds me. Gardens are
being tilled and planted for the ground is warm and will soon break with sprouts
of future bounty. Butterflies of every color are seen flittering and fluttering,
while insects of all kinds are heard buzzing and humming. Butterfly and insec .....
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Autism 3
Words: 1709 - Pages: 7.... medical professionals have tried to understand autism and its origin. The above example shows only a few examples of autistic behavior.
The history of autism extends, as far back as the late sixteenth century; however, during that time it was not identified as this illness. Here is a statement from before the discovery of the illness:
In 1799, a boy about eleven years of age was found naked in the woods of
Averyron, France. He was dirty, covered with sores, mute, and behaved like
A wild animal. Jean Itard, the physician of the new institution for deaf-mutes,
Was given charge of the abandoned child. From Itard’s description, Vic .....
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Kevlar
Words: 936 - Pages: 4.... scientists at Du Pont discovered a new method of producing an almost perfect polymer chain extension. The polymer poly-p-benzamide was found to form liquid crystalline solutions due to the repetitiveness of its molecular backbone. The key for the structural requirement for the backbone is para orientation on the benzene ring, which allowed for rod-like molecular structures. This technology was used when Du Pont released aramid fiber in 1971.
What is it?
Kevlar is an aramid, a term invented as an abbreviation for aromatic polyamide. The chemical composition of Kevlar is poly para-phenyleneterephthalamide, and it is more properly kno .....
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Nuclear Proliferation
Words: 2833 - Pages: 11.... sentry and killed him with a chisel. Panicking he grabbed the guard’s
AK-47 and killed seven more crew members on the way to the torpedo
bay where he locked himself in. This suicidal teenager the stayed in
the bay for twenty hours threatening to blow it up and potentially
causing a “Floating Chernobyl”(Paddock-thestar.com). He talked to
his mother and then he just killed himself. When scientists and nuclear
activists got a hold of this story “it sent shivers through their spine”
(Paddock-thestar.com). This was because one day they know that one
suicidal teenager will actually have the guts to just .....
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Dna 2
Words: 1906 - Pages: 7.... purified and later combined by chemical techniques to produce insulin structurally and chemically identical to pancreatic human insulin. (Hyde, 1984)
As of 1986, human insulin began to be produced by a process which involves the enzymatic conversion of human insulin's biosynthetic precursor, human proinsulin. The genetic coding for human proinsulin is inserted into the special E. coli bacteria which are then grown in a fermentation process to produce human proinsulin. With genetic engineering, new proteins are synthesized. They can be introduced into plants or animal genomes, producing a new type of disease resistant plants, capable of .....
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The Platypus
Words: 961 - Pages: 4.... range, it is left up to the younger platypus to find a home range of its own.
Home ranges house several burrows, that are located along the river bank. There are two different types of burrows, dwelling burrows, and nesting burrows. The nesting burrows are used for rearing young, and the other dwelling burrow is used by both sexes as a place to rest, sleep and eat. Burrows have a problem with maintaining a flow of air through them. If a platypus stays in a burrow for too long it will begin to use up its supply of oxygen. The nesting burrow has an entrance above water level to increase oxygen supply, whereas the dwelling burrows are lo .....
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Landfills
Words: 692 - Pages: 3.... chemicals and other materials can leak out and will go into the water which will be extremely hard to clean but will be hard for the EPA to detect. Doing this will allow the companies to save money because they will not have to barrel the leachates and pay to have them properly disposed of or stored ( 1).
There are many things deposited in . Garbage, rubbish, ashes, large wastes, dead animals, sewage-treatment solids, industrial wastes, mining wastes and agricultural wastes are all materials deposited in (SWD 1). Many of these materials, about 50%, could be recycled, like glass, plastic, paper, etc., instead of being put in . Some tras .....
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Acid Rain
Words: 2433 - Pages: 9.... and combine with the moisture in the air to form . The main chemicals in air pollution that creates are sulfur dioxide and nitrogen oxides. usually forms high in the clouds where sulfur dioxide and nitrogen oxides react with water, oxygen, and oxidants. This forms a mild solution of sulfuric acid and nitric acid. Sunlight increases the rate of most of these reactions. Rainwater, snow, fog, and other forms of precipitation containing those mild solutions of sulfuric and nitric acids fall to the earth as .
Water moves through every living plant and animal, streams, lakes, and oceans in the hydrologic cycle. In that cycle, water eva .....
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Computer Graphics
Words: 2871 - Pages: 11.... before. Perhaps the most surprising aspect of all this, however, is that the entire digital effects and animation industry is still in its infancy. The future looks bright.
How It Was
In the beginning, computer graphics were as cumbersome and as hard to control as dinosaurs must have been in their own time. Like dinosaurs, the hardware systems, or muscles, of early computer graphics were huge and ungainly. The machines often filled entire buildings. Also like dinosaurs, the software programs or brains of computer graphics were hopelessly underdeveloped. Fortunately for the visual arts, the evolution of both brains and brawn of .....
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The Nuclear Power Debate
Words: 779 - Pages: 3.... carbon
dioxide emissions by 2 billion tonnes per year, minimising the global warming
effect on the atmosphere. Carbon dioxide is responsible for half of man made
gases contributing to the Greenhouse Effect, and has sparked action from the UN
Intergovernment Panel on Climate Change. Their consensus is a concern for the
environment in the next century if fossil fuels continue to be used, even at
present global levels. The Panel claims that for carbon dioxide to be
stabilised to safe levels, a 50-80% reduction in all emissions would be required.
The United Nations has predicted a world population growth from 5.5
billion to 8.5 bill .....
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