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Essays on Science

Hurricanes 3
Download This PaperWords: 1570 - Pages: 6

... tropical cyclone on record. Large areas of Jamaica were devastated and the country’s Prime Minister, Edward Seaga, pronounce it the worst natural disaster ever to strike his country. Greatest loss of life however, occurred in Mexico where Gilbert hit twice, first of all traversing the Yucatan Peninsula and two days later making landfall some 150 km south of the border with the USA, finally dissipating near the city of Monterrey. During its most intense phase at the western end of the Caribbean Sea, Gilbert was estimated to have central pressure of 885mbar, and maximum sustained winds in its circulation over 150kt (knots) with highest gusts in exc ...



The Big Bang Model
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... expanded and cooled. Several million years later, it condensed into galaxies. The universe has continued to expand, and the galaxies have continued moving away from each other ever since. Today the universe is still expanding, as astronomers have observed. The Steady State model says that the universe does not evolve or change in time. There was no beginning in the past, nor will there be change in the future. This model assumes the perfect cosmological principle. This principle says that the universe is the same everywhere on the large scale, at all times.2 It maintains the same average density of matter forever. There are observational evidence ...



Creation Versus Evolution
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... that dispute those of Darwin (Nowicki). The scientific society, a neutral party, and the Christian community all have their opinions and insight regarding this matter. Evolutionists feel strongly about their stance on the issue of presenting creationism to America's classroom. They feel that by bringing this medium into schools, the Christians will be able to "further advance their various agendas" (Flank) by forcing their religious beliefs on students who do not believe in God, or in the same god. This is where the separation of Church and State comes into play. Evolutionists are adamant about keeping religion out of school, according to the guidelines of th ...



Acid Rain
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... wildlife, buildings, and human health. Some air pollution comes from natural sources, but most is human made. The burning of coal and oil (fossil fuels) by factories, homes, and cars is the main source of chemicals that cause . Power stations emit large amounts of sulfur dioxide and also nitrogen oxides, while car exhaust contains large amounts of nitrogen oxides. Once is formed, it can stay up in the clouds for a long time. These clouds can be carried off by the wind to other areas, sometimes hundreds of miles away, where they eventually fall to the Earth as or snow. This is called transboundary pollution. For awhile some people believed that by building h ...



Ensuring Our Future Through Conservation
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... majestic rainforests has diminished immensely over a course of about 100 years. Recent studies and estimates conclude that around two percent of the world's rainforests is lost each year. Unless we change this amount of deforestation, there will be little of our rainforests left in 50 years. Our rainforests are an integral part in our world's ecosystem, and therefore need to be conserved as best we can. The rainforests provide safety and life to millions of kinds of life, they may contain cures to many of the world's diseases, and they provide over 60 percent of the world's supply oxygen to humans and other animals. Destroying these beautiful and key parts of ...



Hemp
Download This PaperWords: 2153 - Pages: 8

... on the global fence between our magliomaniacal brother to the south and our staunch traditionalist motherland to the east. From this division of powers and alliances we find ourselves locked into a self-induced ignorance and stifling conservatism. It's ironic that we have the opportunity to solve most of Canada's critical environmental issues in one fell swoop . . . with one simple plant. It is ignorance and the maintenance of the status quo that has blinded and crippled our ability to realize this resource. INTRODUCTION A plant exists that is so strong that it can be grown without requiring chemicals in almost every part of the world. Many have touted this ...



Essay On Global Warming
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... only problem with this is that humans enhance the process even more. Over the past 200 years the emissions of greenhouse gases have been increasing due to the increase in technology that humans have developed (example, factories). These human-induced gases include carbon dioxide, methane, nitrous oxide, and ozone depleting substances such as CFCs, also known as Chlorofluorocarbons, hydrofluorocarbons, 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 forest ...



The Prospect Of Cold Fusion
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... But cold fusion is far from dead. It is alive not only in dozens of laboratories in the United States, but in numerous foreign research centers, particularly in Japan. Cold fusion is a real but still incompletely explained energy-producing phenomenon that occurs when ordinary hydrogen and the special form of hydrogen called deuterium are brought together with metals, such as palladium, titanium, and nickel. Usually, some triggering mechanism, such as electricity or even acoustic energy, is required to provoke the "cold fusion" effects. Both ordinary hydrogen and deuterium are abundant in ordinary water so the process would likely end many of the world's energy c ...



Ozone
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... This dynamic equilibrium is very delicate and resulted during atmospheric formation (Environment Canada, 1996). Ozone, however, is very rare even in the ozone layer. Oxygen makes up approximately twenty percent of air and ozone makes up only 3 x 10-5 percent of air. Furthermore, this minuscule amount of ozone is enough to protect the earth from most ultraviolet light. Ozone prevents most UV-B radiation from reaching the surface of the earth (Environment Canada, 1996). Ozone is very important to life on earth because the harmfulness of high-energy UV-B radiation stems from the high energy of these light rays, enabling them to penetrate deeply into water, plant ti ...



Supernova
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... by an astronomer at Chile's Las Campanas Observatory. It quickly became an object of intense study by all the means available to modern astronomy. A supernova may radiate more energy in a few days than the Sun does in 100 million years, and the energy expended in ejecting material is much greater even than this. In many cases, including the Crab nebula supernova, the stellar remnant left behind after the explosion is a NEUTRON STAR--a star only a few kilometers in diameter having an enormously large density and consisting mainly of neutrons--or a PULSAR, a pulsating neutron star. There are two common types of supernovas, called type I and type II. ...




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