|
Papers on Science and Nature
Effects Of Smoking
Number of words: 385 | Number of pages: 2.... to the movies. Smoking becomes a part of who and what you are, An addict. It amazes me the number of people who smoke cigarettes who would never smoke a "marijuana" cigarette. They say "Oh no, that’s drugs" or "I’m not a dope fiend". Sorry pal tobacco is a drug and if you're a smoker, you are also a drug addict. The sooner you accept it, the sooner you will be able to get well again and kick the habit.
Smoking, like any addiction, especially addictions that involve chemicals, is a sickness. Fortunately it is a sickness that can be cured. There is help available. Chances are that unless you can lock yourself away for .....
Get This Essay
|
|
Ozone Depletion In The Antarctic
Number of words: 1703 | Number of pages: 7.... means that one chlorine can destroy many ozone molecules (Figure 1.2)
During the winter in the Antarctic the circumpolar vortex, which is a strong westerly circulation around the continent, builds in the stratosphere. This phenomenon causes the interior of the stratosphere to be cut off and the temperatures drop below -800C. This results in thin clouds forming and that enables reactions with gases containing chlorine to take place. In the spring the sun returns and the chlorine in the stratosphere begins a series of ozone destroying catalytic chemical reactions creating the ozone hole over the Antarctic. During the late .....
Get This Essay
|
|
Global Warming 2 --
Number of words: 776 | Number of pages: 3.... and perfluorocarbons. These gases are generated a number of human activities such as fossil fuel combustion, waste disposal in landfills, the
use of a refrigerator, numerous agricultural and industrial activities, and the cutting down of numerous forests.
These human practices have already changed the chemical make up of the atmosphere. Between the pre-industrial times and today, we have seen the concentration of carbon dioxide rise 30% in some regions, in particular the northern hemisphere, human practices have increased concentrations of aerosols in atmosphere, which is a traditional form of air pollution), which tends t .....
Get This Essay
|
|
Multiple Sclerosis
Number of words: 816 | Number of pages: 3.... only going to get worse. But possibly the worst symptom of all are mental problems such as a loss of self-esteem and feelings of worthlessness.
The most obvious effect that MS has on a person is a loss of coordination and balance; approximately 77 percent of people afflicted with MS experience this symptom (3). When my family went to the Grand Canyon for a vacation we had no idea that Kathy was afflicted with . We took a mule ride down to the bottom of the canyon, and when we reached our destination there was a ranch where we stayed the night. As you might expect it was very warm at the bottom of the canyon in the middle of .....
Get This Essay
|
|
Creatine 2
Number of words: 477 | Number of pages: 2.... being made from the Creatine. This can result in kidney or liver failure.
Constriction of the blood vessels occurs when you use Creatine and work out for extended amounts of time. This can cause major constriction of the vessels around the heart causing abnormal heart rates and heart attacks.
Pancretitis is another side effect where the pancreas stops working and fails. Creatine is said to be directly related to pancretitis if it is being used when it occurs.
Asthma is said to be directly related to some types of Creatine if they are used to do certain exercises. Some experts (pulmonary specialists) have also come to the conclusi .....
Get This Essay
|
|
Malthus' Principle Of Population: Today And The Future
Number of words: 1927 | Number of pages: 8.... in poverty.
Food projections are extremely uncertain since natural disasters are unpredictable and may increase if the forecasted effects of global warming materialize. Also, environmental degradation is increasing while water allocations are decreasing.
Society will not be suddenly surprised by a “crisis point” at which food supplies are no longer adequate. Todays isolated anarchy and famine (which is politically inspired) in Africa could easily turn into a world wide sustenance inspired problem during the first half of the next century.
Humans are the only creatures endowed with the ability to evaluate the consequences o .....
Get This Essay
|
|
David Levinson: Seasons' Of A Man's Life
Number of words: 4195 | Number of pages: 16.... in their world and various aspects of themselves) is the
major component in Levinson's theory. The life structure for each person
evolves through the developmental stages as people's age.
Two key concepts in Levinson's model are the stable period and the
transitional period in a person's development. The stable period is the time
when a person makes crucial choices in life, builds a life structure around the
choices and seeks goals within the structure. The transitional period is the
end of a person's stage and the beginning of a new stage.
Levinson's model contains five main stages. They are the pre-adulth .....
Get This Essay
|
|
Calories
Number of words: 439 | Number of pages: 2.... another scientist of the seventeen hundreds, discovered that it took different substances varying amounts of heat to raise one gram of a substance one degree Celsius. He called this specific heat. Mr. Black also noticed that when mercury at fifty degrees is mixed with equal amounts of water at zero degrees the resulting mixture would be only one degree. From this, he concluded that heat and temperature were not the same. In order to give the scientific world a standard of measure Mr. Black termed
the amount of heat required to raise the temperature of one gram of water one degree Celsius a calorie.
The problem encountered h .....
Get This Essay
|
|
Black Powder
Number of words: 941 | Number of pages: 4.... The most typical form of is the mixture of sulfur, charcoal, and potassium nitrate. Another form of this powder is known as the brown form, this is a mixture of saltpeter, charcoal, and sulfur. These pieces tend to look like little hexagonal or octagonal milk chocolate pieces. However these can be modified in a way to form a more harsh explosion. This method is known as grading, were powder size is modified to hold a higher concentration of a particular substance. The charcoal used in such is considered to be ash from the wood of a willow. The different types of can be modeled in such ratios such as 6:5:5 or 6:5:2. Any .....
Get This Essay
|
|
Biotechnology In Food
Number of words: 933 | Number of pages: 4.... U.S. are using the World Trade Organization (WTO) in an effort to do so. Most large European and British supermarket chains have removed GE products from their shelves, and the largest European food processors (Nestle and Unilever) will no longer use GM products.
All this is being reflected in the market -- non-GM foods are now selling at a higher price than genetically altered crops. And there is a scramble by farmers to find non-GM seed for planting next year -- there may not be enough to meet the rising demand.
Mitchell tells us GM crops will reduce the use of herbicides and insecticides. In fact, the whole point of GM s .....
Get This Essay
|
|
|