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» Browse Science and Environment Term Papers
Comets
Number of Words: 1865 / Number of Pages: 7
... family. They are bound by gravity to a strict path around the
solar system. Scientists believe that all comets were formed of material,
originally in the outer part of the solar system, which did not become
incorporated into planets. This material is from when the planets just started
forming. This makes comets an extremely interesting topic to scientists who are
studying the history of the solar system.
In comparison to planets, comets are very small. They can be anywhere
from 750 meters (or less) to 20 kilometers in diameter. However, lately,
scientists have been finding proof that there ar ...
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Meth
Number of Words: 357 / Number of Pages: 2
... rate, aids and HIV through the use of needles,
dependence, tolerance, addiction, and can cause psychosis.
The use of Meth is going up. In 1995, 3.9% of high school
seniors had used it. That's an increase of 2.7% since 1990. 8 out of
10 people who try Meth will become addicted. Famous people who
have done Meth include- Chris Farley, John Belushi, and Mick
Jagger. The cost of doing Meth is very high too. A user can spend
up to $100 a day. And sometimes, spending $400-$500 to support
an addiction is not unusual. The penalties are very severe for those
caught with Meth. Possession of any qua ...
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Nuclear Weapons And Their Hazards
Number of Words: 821 / Number of Pages: 3
... A large-scale nuclear war would lessen food production over large
expanses in the Northern Hemisphere, this could occur through acute
climatic conditions which chilling or freezing temperatures occurring for
brief periods during the growing season which could destroy crops or lower
production. As result of the variety of potential physical and societal
disruptions to agriculture from a large-scale nuclear war, agriculture in
the Northern Hemisphere could be shut down or significantly reduced for the
first growing season after war and maybe several growing seasons. Only the
major grain-producing ...
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BETA PICTORIS: PLANETS? LIFE? OR WHAT?
Number of Words: 1554 / Number of Pages: 6
... the growth of planetary bodies.
For a long time, even before there was the term cocoon nebula, planetary
scientists knew that a cocoon nebula had surrounded the sun, long ago, in order
for our solar system to form and take on their currents motions (1).
In 1755, a German, named Immanuel Kant, reasoned that “gravity would
make circumsolar cloud contract and that rotation would flatten it (1)." Thus,
the cloud would assume the general shape of a rotating disk, explaining the fact
that the planets, in our solar system, revolve in a disk-shaped distribution.
This idea, about the disk-s ...
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Acid Rain, Effects And Causes
Number of Words: 1954 / Number of Pages: 8
... problem. Since that time, much research has gone into identifying the sources of acid rain and the damage that it causes. As research continued, the situation reached catastrophe proportions in the late 1970's. By this time, thousands of lakes in Canada and Scandinavia had been declared dead, devoid of life, while emissions of acid gasses continued to rise.
Acid Rain Chemistry
As mentioned earlier, the term acid rain is used to describe a variety of different types of acidic deposition. These include "wet" deposition such as rain, snow and fog, as well as "dry" deposition in the form of acidic g ...
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Carpal Tunnel Syndrome
Number of Words: 459 / Number of Pages: 2
... your fingers-even though they may not be visibly swollen
You may notice that:
your symptoms are worse at night
your hands feel weak in the morning
you drop objects more than usual
you have trouble grasping or pinching objects
you may have trouble using your hands for certain tasks, such as buttoning a shirt, writing with a pen, or opening a jar lid
Who gets it?
Carpal tunnel syndrome can occur at any age. Carpal tunnel syndrome from non-work causes usually affects people in their fifties, while from work causes is highest between the ages of twenty and forty. The condition is more ...
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The Roswell Incident
Number of Words: 1146 / Number of Pages: 5
... correct and that the Roswell wreckage was of
extraterrestrial origin. One such individual was Major Jesse Marcel, the
Intelligence Officer of the 509th Bomb Group and one of the first military
officers at the scene.
On January 12, 1994, United States Congressman Steven Schiff of Albuquerque, New
Mexico, announced to the press that he had been stonewalled by the Defense
Department when requesting information on the 1947 Roswell event on behalf of
constituents and witnesses. Indicating that he was seeking further investigation
into the matter, Congressman Schiff called the Defense Department's lack of ...
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The Problem With Desertification
Number of Words: 1841 / Number of Pages: 7
... agriculture (Kaya and Yokobiri, 1997). Drylands still provide much of our grain and livestock. These areas cover more than 40 percent of the world’s land surface. As these areas decrease in size, so does the reliability of the land to support the human population. In some areas, desertification is occurring to such a degree that some lands can no longer sustain life. Large regions which have been greatly affected include: the Savannas of Africa, the Great Plains and the Pampas of America, the Steppes of Asia, the Outback of Australia, and the margins of the Mediterranean (World Atlas of Desertifi ...
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Evolution 2
Number of Words: 3283 / Number of Pages: 12
... another French naturalist named Lamark, proposed the first complete theory of evolution. He observed through is observations, depending on the extent to which the use of the structure, that an animal’s body structure is able to change during its life span. He also noted that organs and muscles, which were used often, tended to become larger and stronger. On the contrary, the organs and muscles, which were used seldom, tended to become smaller and diminish. With these observations, Lamarck concluded that these characteristics were hereditary.
Proposed during two decades, the 1930s and 1940s, ...
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Arthritis 2
Number of Words: 867 / Number of Pages: 4
... to be caused by a disease process, when in fact they are often a consequence of relative immobility. These findings underscore the enormous importance of exercise in the fight against arthritis.
You should realize that immobility will set off the destructive set of events. After four or five months, such degeneration may be quite well along, so that even if you initiate a program of vigorous exercise, you may have to wait up to a year for the joint's normal motion to return. Therefore, I say, prevention is the order of the day.
Exercise exerts very favorable influence on the immunological system, ...
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