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» Science Essays and Papers
After The Atomic Bomb
<view this essay>.... sweep of fear as to what might happen if these terrible forces where unleashed again. The technology involved in building the first atomic bombs has grown into the creation of nuclear weapons that are potentially 40 times more powerful than the original bombs used. However, a military change in strategy has came to promote nuclear disarmament and prevent the usage of nuclear weapons. The technology of building the atomic bomb has spurred some useful innovations that can be applied through the use of nuclear power. The fear of a potential nuclear attack had been heightened by the media and its release of movies impacting on public opinion and fear of nucle .....
Number of words: 2470 | Number of pages: 9 |
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Life On Other Planets?
<view this essay>.... kind of environment, of the basic
physical and chemical laws of the universe (Chandler, 3).
It is clear to present day scientists that the possibility of life
flourishing in outer space relies on favorable conditions or environments
within a given area in a solar system. There is even some present day proof
that life can flourish in some not so favorable environments as found with
the development of algae on many of Earth's deep sea thermal vents, as well
as bacteria that lives beneath the Earth's icy polar tundra's in the arctic
and Antarctic. George W. Wetherill even notes that “Even if a planet or
moon could not support life globally, .....
Number of words: 1748 | Number of pages: 7 |
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Cloning
<view this essay>.... hope is that this knowledge will subsequently be able to benefit the treatment of a series of different illnesses. In addition, this form of may possibly prove to be fitting in order to manufacture pharmaceutical drugs. On the other hand, Dolly has also brought forth disgust and dismay. animals reflects a lack of respect for the individual animal's integrity and that the application of such technology will result in undesirable shifts in our view of how we may treat animals and how radically we can meddle with nature in general. Furthermore, it is stressed that, whatever potential uses it may be put to at some future stage, the technique raises a long strin .....
Number of words: 544 | Number of pages: 2 |
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Destruction Of The Ozone Layer
<view this essay>.... of oxygen that is present in the Earth's
atmosphere in small amounts." The presence of ozone makes it possible for
life on Earth. Ozone is made naturally by photochemical and discharge
reactions. Photochemical production occurs when, " high energy radiation
from the sun strikes ordinary oxygen molecules in the upper atmosphere."
Lightening and sparks from motors also convert oxygen to ozone ( Stoker 1).
The question about the destruction of the ozone layer revolves
around whether human-made CFCs (chloroflurocarbons) used in air-
conditioners and refrigerators are breaking it down. This is the ozone
thinning theory: "CFCs release chlorine into the strato .....
Number of words: 1143 | Number of pages: 5 |
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Computer Mediated Evnvironment
<view this essay>.... of computer and information technologies throughout businesses and homes. The two most notable changes that have increased potential of linking buyers and sellers are the number of households owning personal computers (over 33% in the U.S.) and the exponential growth of applications of the Internet, most notably the World Wide Web (WWW).
With increased penetration of computers, particularly multi-media computers equipped with CD-ROM drives and modems, subscription-based services such as America Online (AOL), Prodigy, and Compuserve, where consumers are able to check airline flight schedules and make reservations, purchase a wide variety of products, and .....
Number of words: 5150 | Number of pages: 19 |
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Ebola Virus 4
<view this essay>.... prevalent cause of infection among macaques (Manson 1989).
These threadlike polymorphic viruses are highly variable in length apparently owing to concatemerization. However, the average length of an infectious virion appears to be 920 nm. The virions are 80 nm in diameter with a helical nucleocapsid, a membrane made of 10 nm projections, and host cell membrane. They contain a unique single-stranded molecule of noninfectious (negative sense ) RNA. The virus is composed of 7 polypeptides, a nucleoprotein, a glycoprotein, a polymerase and 4 other undesignated proteins. Proteins are produced from polyadenylated monocistronic mRNA species transcribed from virus RN .....
Number of words: 2184 | Number of pages: 8 |
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Fusion 2
<view this essay>.... can be produced by heating an ordinary gas of neutral atoms beyond the temperature at which electrons are knocked out of the atoms. The result is an ionized gas consisting of free negative electrons and positive nuclei. This gas constitutes a plasma.
Plasma, in physics, is an electrically conducting medium in which there are roughly equal numbers of positively and negatively charged particles, produced when the atoms in a gas become ionized. It is sometimes referred to as the fourth state of matter, distinct from the solid, liquid, and gaseous states. When energy is continuously applied to a solid, it first melts, then it vaporizes, and finally electrons .....
Number of words: 2677 | Number of pages: 10 |
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Polymers
<view this essay>.... ratio. Industrial-strength surpass titanium in tensile strength. To add strength and improve flexibility, are sometimes fortified with short-fiber additives, mostly fiberglass. This is known as a polymer composite. One particular polymer has three times the strength of tempered steel and is being used in bullet proof vests. Another composite will be used to fasten together the sections proposed space stations. have also been used in cars, including the Chevrolet Camaro and the Pontiac Fiero. New are being created with more strength and flexibility by combing two chemically different and producing a block copolymer. Combinations of block co an .....
Number of words: 397 | Number of pages: 2 |
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