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Science and Nature Term Papers and Reports |
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Depression 6
963 Words - 4 Pages.... vague aches and pains, etc.) is the most common complaint heard in doctors’ offices. There are three primary forms of depression. Major depression, like the flu, has a beginning, middle, and an end. Major depression often lasts for months. Left untreated, it tends to reoccur. Each reoccurrence tends to last longer and is more debilitating than the one before. Chronic depression is a low grade, long-term depression that can go on for years. Some people have had it most of their lives. Long term, low-grade depression is also known as dysthymia. Dys, meaning disorder, and thymia meaning mood. Dysthmia is then a disorder of ones mood. The last type is manic depressio ....
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Fossil Fuels And Alternative Energy Sources
993 Words - 4 Pages.... source of the energy that their daily lives depends on. Over eighty-five percent of the energy that powers the planet is derived from the burning of fossil fuels (Information 16). Fossil fuels contain impurities and these “impurities such as sulfur also burn and produce potentially dangerous oxides” which are released into the air (Burning www 1). Releasing these oxides into the air has many consequences including smog, which is the most noticeable of these problems. The hazy smog that hangs over us in the summer is actually ground level ozone; the most harmful pollutant of our air (Information 59). Pollutants of the air we breathe are very dangerous and c ....
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Animal Uses
738 Words - 3 Pages.... calves, sheep, goats, pigs, and a couple million rabbits, hamsters, guinea pigs, birds, rats and mice (Curtis 658). These animals are subjected to experiments that often cause pain and even death. According to Cutis, about 25 cosmetic companies including Avon and Revlon, have cooperated in conducting animal tests to see if there product are irritating (664). These experiments were tested on rabbits only because they have no tear glands to wipe away any foreign objects on the eye. The animal would be strapped down and the "product" would be dropped into the eyes. After irritation came pain, after pain came ulceration and bleeding, blindness would follow. Other tests ....
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The Chaos Theory
2353 Words - 9 Pages.... in the chaos that develops in the human
heart, the prime cause of a sudden, unexplained death. Ecologists explored the
rise and fall of gypsy moth populations. Economists dug out old stock price
data and tried a new kind of analysis. The insights that emerged led directly
into the natural world- the shapes of clouds, the paths of lightning, the
microscopic intertwining of blood vessels, the galactic clustering of stars."
(Gleick, 1987)
The man most responsible for coming up with the Chaos Theory was
Mitchell Feigenbaum, who was one of a handful of scientists at Los Alamos, New
Mexico when he first started thinking about Chaos. Feigenbaum was a little
known sci ....
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Buoyant Forces
281 Words - 2 Pages.... was found to be 100g, and then to calculated it's weight, which was .98
newtons. Then next step was to measure the apparent weight of the cylinder when
it is completely submerged in a bath of water using the formula Wa=ma*g , this
was found to be 88.5grams. Knowing these two numbers, the bouyant force that
the water places on the object can be calculated using the formula Fb=W-Wa ,
Wa=.8673n W=.98n Fb=.1127n
Part 2 of this lab consisted of weighing an empty cup, which was 44grams.
And then filling another cup up to a certain point the if any more water was
added, it would spill out of a little opening in the cup, the water spilled out
could be caught in the ....
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Lasers And Their Applications
1998 Words - 8 Pages.... = c/f
where f is the frequency c is the speed of light which is equal to 3.00 x 108 m/s and is the wave length of light. Also waves have crests, the high points of waves, and troughs, the low points. Constructive interference occurs when two waves of the same frequency meet at a crest or trough therefore combining to form a wave that has an amplitude equal to the sum of the individual amplitudes of the original waves. Stimulated emission is the process that the laser works on, which was first proposed by Albert Einstein in 1917. When a sufficient number of atoms, either gas solid or liquid, absorb energy so that they are in an excited state of higher energy stimula ....
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Lsd 2
769 Words - 3 Pages.... his experiments, but never came in contact with the crystals until1943. (LSD can be absorbed through the skin.) Hoffman then sent LSD around the world to be tested and investigated to find medical uses. Lysergic acid deviates were found to relieve migraines and control postpartum hemorrhage because it causes veins to contract, but also caused gangrene of the limbs, and so further experimentation with the drug was abandoned. In the late 50's, however, LSD was used by the CIA as an interrogation drug for spies. However, it was proven to be unreliable and was later replaced with other interrogation drugs.
LSD comes in the forms of crystals, liquids, tablets, gelatin ....
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Genetically Engineered Foods
2016 Words - 8 Pages.... process. The life, growth and unique features of the organism depend on its DNA. The segments of DNA, which have been associated with specific features or functions of an organism, are called genes.
Molecular biologists have discovered many enzymes, which change the structure of DNA in living organisms. Some of these enzymes can cut and join strands of DNA. Using such enzymes, scientists learned to cut specific genes from DNA and to build customized DNA using these genes. They also learned about vectors, strands of DNA like viruses, which can infect a cell and insert themselves into its DNA. Scientists started to build vectors, which incorporated genes of their choosing ....
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