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Search results 4201 - 4210 of 14240 matching essays
- 4201: Oceans
- Oceans The ocean covers Seventy-one percent of our planets surface. Life is concentrated, however, in about four percent of it, and it is this four percent that is being polluted by the tons every day. Everyone needs to understand that the oceans are not endless, and not bottomless. They also much see that the ocean contains much marine life which are essential to our eco-system. And in order to ... world for our children as it was for us. First, we need to understand that the oceans are not the vast resources that we believe them to be, but just vulnerable natural resources. Before Columbus' day, the ocean were thought to be boundless. Although Columbus proved this theory incorrect, the thought still remains in today's societies. “For we of the 20th century still treat the ocean as the endless, bottomless ... the oceans is only a little more than a mile, when in fact, some lakes exceed this depth rather handily. Although the size of the ocean is often pondered, the thought that it may one day be gone, is never even considered. The vast majority of all life in the ocean, inhabits only 1/25 of these waters, but it is these surroundings that are in the most danger. In ...
- 4202: Life On Other Planets?
- ... biologists now believe that life is an inevitable consequence, given enough time and the right 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 ... evidence that water, heat and organic compounds may have combined to create an environment suitable for the start of life, Galileo scientists told a news conference at NASA's Washington headquarters”(CNN Interactive). As each day passes, the worlds science society obtains more and more evidence that suggests the possibility of life beyond Earth. This all comes from expeditions such as the Galileo space probes around the Jovian planetary system, ...
- 4203: The Mystery of Area 51
- ... East and went flying into the Northwesterly direction. These ranchers observed it for 40 or 50 seconds before it disappeared behind the hills. They did not recall it making any sounds (Roswell 1). The next day, another rancher recovered a part of what is believed to be, the flying object that was seen the night before. According to the Las Vegas Review Journal, the man gave it to authorities, and it ... on in our lives, I believe we need to know what goes on in theirs. Whatever lies in Area 51 effects every single life that occupies this nation. The government is making new laws every day to “protect our health” and help us to reach the “ American Dream”. Knowing that the government is hiding from several hundred million people, is enough to make anyone sick. Whether it be a remnant from the cold war, or a testing for modern day planes, Area 51 remains one of America's most well kept secrets, which remains one of the most often asked questions unanswered.
- 4204: Cloning
- ... patenting other organisms. Both are problematic, but for slightly different reasons. The explosions of our capabilities without a concomitant expansion of ethical reflection demands that we resist the temptation to apply unthinkingly every technology the day it is conceived. We need careful investigation of alternatives to human and animal patenting. A blind frenzy of patenting is far more dangerous than a strict prohibition. We need to strive for and cultivate measured ... The Facts on File Dictionary of Biotechnology and Genetic Engineering (1994). Baines, W., Genetic Engineering for Almost Everybody (1988) Barton, J.H., "Patenting Life," Scientific American, March 1991 Erlich, H.A., PCR Technology (1989) Melton, D.A., Antisense RNA and DNA (1988) Setlow, J., Genetic Engineering, vol. 11 (1989) Williams, J., and Patient, R., Genetic Engineering (1989).
- 4205: Acetylation of Ferrocene
- ... After all, acetic alcohol is quite polar; thus it would be one of the last products out along with the DAFC. Table 1.4 shows the calculations. Table 1.4 Percent Different Calculations 4 F1 %D = Actual - Start Material x 100 Start Material = 0.67 - 0.74 x 100 = 9.97% .74 F2 %D = Actual - Start Material x 100 Start Material = 0..75 - 0.77 x 100 = 2.65% .77 F3 %D = Actual - Start Material x 100 Start Material = 0.61 - 0.36 x 100 = 69.5% .36 5 The IR spectra for F2 show us that we have mostly AFC formed. The peak at the ...
- 4206: The Atmospheric Ozone Layer
- ... loss and chlorine over Antarctica is real. There is still much to be learned about what causes the Antarctic ozone hole. Questions regarding changes in ClO at various latitudes, changes in concentrations in molecules from day to night, the progressive deepening of the ozone hole through the 1980s, and several other details remain unanswered. Colder stratospheric temperatures within the hole are likely to create thicker, longer lasting clouds which enhance processes for ozone removal, but details are not yet clear. Day-to-day variations in ozone within the hole have not yet been properly explained, and there is some question whether the ozone hole will continue its depth and persistence in future years. The Arctic The discovery ...
- 4207: Uranium: Nuclear Friend or Nuclear Foe
- ... S.'s enthusiasm in this area was fully shown when president Dwight Eisenhower delivered his ³Atoms for Peace² speech before the United Nations in 1953. In this speech, the president expressed his opinion that one day almost all of the power in the world would be created by nuclear power. The first step in this dream was achieved in 1957 when the world's first power generating nuclear plant began operation ... When people are exposed to large amounts or a reaction of uranium at one time, many more severe health problems can occur such as, burning and death. The threat of radiation seepin «f• úúúúúú! Èh€d is also a ÄIÀt danger. The radiation present in the soil and water makes the material unfit for animal and human use, and the radiation may linger for many years. Another problem of uranium is ...
- 4208: Scenes of Nature
- ... sky is undeniably exquisite. The skys deep shades range from blue at dawn to deep oranges and purple at dusk. The sky scenes are genuinely picturesque. The forest changes it scenery in seasons instead of day and night like the sky. In the summer the forest is filled with majestic shades of green. The fall brings colorful shades of oranges, reds, and yellows. The winter deprives the forest of its colorful ... but brings a different type of beauty all together. In the spring all of the green magnificence returns. The forest is breathtaking anytime of the year. The ocean does not change with the seasons or day and night. The ocean holds its beauty constantly. The different parts of the world embrace eccentric colors of the ocean. In the Caribbean exotic crystal clear waters embrace the white sandy beaches. Yet the bays ... of the pacific. The ocean varies with its location. The different scenes of nature are very intriguing. Whether it is the sky, the forest, or the ocean one may enjoy them anytime of the year day or night.
- 4209: Devastation of the Rain Forests
- ... any other war in history. Vietnam and World War II had minimal loss of life compared to this never-ending battle. It is predicted that by the year 2020, the casualties will reach 150 per day. This total does not even include the loss of human life due to the lack of oxygen and the horrible living conditions. This terrible scenario would be the result of mankind's failure to cooperate ... plants used in anti- cancer drug come are the rain forest. We are slowly destroying the environment and ourselves. Whether we realize it or not, the world could quickly come to an ecological stop. Every day 144,000 acres of the rainforests are cut down, slashed and/or put up in flames. In 1974, Brazil started a forest fire of 20.6 million square feet (3,900 square miles). The fire ... the blockades of the FPA, "Forest Peoples' Alliance", and the perpetual pleas of the Scientist's who predict, "tropical species are disappearing at a rate that could conceivably reach as high as 150 species a day by the year 2020" Landry, (5). Unfortunately this battle is about to economics versus environment, and so far the environment is losing the war. Chico Mendes' death finally brought the much-needed worldwide attention ...
- 4210: The Tragic Challenger Explosion
- ... the tragic explosion that the banner would be put on display to remind others at Auburn High that other seemingly ordinary students can too fly high. (Gray 33) Judith Resnik, born 1949, had a Ph.D. in electrical engineering. She was very ambitious and loved everything. She once said, "I want to do everything there is to be done." Being chosen for the space program gave her the opportunity to meet ... Special Reports interrupt normal programming, but in 1986, it was pretty unusual. In fact, ABC switchboards alone fielded more than 1,200 complaints from people who wanted to watch soap operas rather than an all-day report about the Challenger and the late breaking news related to it (Zoglin 42). Television definitely had a tremendous impact on reporting this story. ABC Anchorman Peter Jennings said, "We all shared in this experience ...
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