Wednesday, January 29, 2020

Preserving Water is Preserving Life Essay Example for Free

Preserving Water is Preserving Life Essay There are various resources that the Earth provides its inhabitants, but the most important natural resource is water. However, despite the fact that water is an irreplaceable natural resource, humans tend to abuse without knowing the implications. It is necessary to save water not only because it is a very manageable resource (Padmavathy Malarvizhi, 2006), but also because of the fact that water provides life to every living thing on Earth. Without it, life cannot be sustained: humans can survive weeks without food, but without water, they will only be able to survive for a few days. Apart from this, water also sustains the growth of life in forests, jungles which are the habitats of other species. Unfortunately, as much as the world would like to believe that natures resources would last forever, such is not possible. Water is a finite source, and only about 0. 024% of all the water resources in the world is accessible, while the rest of the worlds water supply consists of oceans and inaccessible freshwater in the deep earth (Dauvergne, 2005). Humans, animals, and plant life will not be able to subsist without water; plant life would not be able to grow, and animals which eat plants will not have any food supply. These animals will deplete in numbers, they will devastate the food chain and bigger animals which eat these animals will also lose their food supply. If animals continue to thin in numbers, they would eventually become endangered, and unfortunately, it is possible that they may become instinct. In order to preserve life on Earth, every individual should have the initiative to save water. There is a need to educate people of the implications of losing freshwater on Earth, for the first step to understanding would be education. If people pitch in and do their part for the preservation of water, life on Earth may have a chance in subsisting for generations. References Dauvergne, P. (2005). Handbook of global environmental politics. Cheltenham: Edward Elgas Publishing Limited. Padmavathy, S. Malarvizhi. (2006). Conservation of protected water resource in household. In G. Chandrakumar N. Mukundan, Water resource management: Thrust and

Tuesday, January 21, 2020

Radio Waves :: essays research papers

Radio Waves In the modern society, radio is the most widely used medium of broadcasting and electronic communication : it plays a major role in many areas such as public safety, industrial manufacturing, processing, agriculture, transportation, entertainment, national defense, space travel, overseas communication, news reporting and weather forecasting. In radio broadcasts, they use the radio waves which can be both microwaves and longer radio waves. These are transmitted in two ways: amplitude modulation (AM ) and frequency modulation ( FM ). These two kinds of wave have many differences. Radio waves are among the many types of electromagnetic waves that travel within the electromagnetic spectrum. Radio waves can be defined by their frequency (in hertz, after Heinich Hertz , who first produced radio waves electronically), which is number of times they pass through a complete cycle per second; or by their wavelength, which is determined by the distance (by meters) that is traveled from the crest of one wave to the crest of the next. Radio frequencies are measured in units called kilohertz, megahertz, and gigahertz. (1 kilohertz = 1000 hertz : 1 megahertz = 106 hertz, 1 gigahertz = 109 hertz). All radio waves fall within a frequency range of 3 kilohertz, or 3000 cycles per second to 30 gigahertz. Within the range of frequencies, radio waves are further divided into two groups or bands such as very low frequency ( VLF 10-30 kHz ), low frequency (LF 30-300 KHz), medium frequency ( MF 300-3000 KHz), high frequency ( HF 3-30 MHZ) and very high frequency ( VHF 30-300MHZ). Amplitude modulation is the oldest method of transmitting voice and music through the airwaves is by amplitude modulation. This is accomplished by combining a sound wave from a microphone, tape, record, or CD with a "carrier" radio wave. The result : a wave that transmits voice or programming as its amplitude ( intensity ) increases and decreases. Amplitude modulation is used by station broadcasting in the AM band and by most international short wave stations. Frequency modulation is another way to convey information, voice , and music on a radio wave is to slightly change, or modulate, the frequency. The main advantage of FM broadcasting is of it is static free. But the drawback to FM is since the frequency is varied, station takes up more room on the band. Frequency modulation is, of course, used on the FM band. And it is used for "action band" and ham transmission in the VHF/UHF frequency range. In amplitude modulation, what is modified is the amplitude of a carrier wave on one specific frequency.

Monday, January 13, 2020

Almost. Maine Test (Play) Essay

True or False: 1) Phil and Marci are married. 2) The setting for the play is Eastport, Maine. 3) Steve is Marvayln’s boyfriend. 4) Randy and Chad are a couple. 5) Gayle and Lendall are married. 6) Rhonda and Dave went snowmobiling. 7) Pete is left alone at the end of the play. 8) Jimmy is Sandrine’s ex-boyfriend. 9) Chad works as the mill. 10) Randy’s ex-girlfriend’s face broke while they were dancing. Multiple Choice: 11) What is Marvalyn doing in the beginning of her scene? a) Washing dishes b) Folding clothes c) Ironing clothes d) Reading a book 12) What is inside the tiny bag that Lendall gives to Gayle? a) Chocolate b) A ring c) Flower d) A card 13) Where does Marci’s second shoe come from? a) The sky b) Phil finds the shoe for her c) Under the bench d) The car 14) What is Danny’s wife’s name? a) Ginette b) Hope c) Suzette d) Glory 15) Why is Sandrine at the Moose Paddy? a) She is a waitress there b) She came to meet Jimmy c) She is there for her bachelorette party d) For a drink 16) Dave and Rhonda are ____________: a) Brother and sister b) Married c) Boyfriend and girlfriend d) Friends 17) The waitress’s name at the Moose Paddy is __________: a) Sandrine b) Villian c) Hope d) Marci 18) All of these characters are in the play Almost, Maine except ________: a) Sandrine b) Pete c) Michael d) East 19) Jimmy’s tattoo says _________: a) Sandrine b) Villain c) Waitress d) Villian 20) Where does Hope take a taxi from? a) Boston b) Baltimore c) Bangor d) Easton

Sunday, January 5, 2020

Democracy And Its Lack Of Democracy - 2099 Words

Throughout Plato’s Republic in Book VIII, readers are caught up in the conversation about four unjust structures that each structure will succeed the other as society decays. The four unjust structures are explained throughout dialogue and described as timocracy, oligarchy, democracy, and tyranny. Most shocking critique throughout the discussion is about democracy and its ineffectiveness to rule. Plato’s disagreement of democracy does not involve of what we are acquainted with today, but rather the idea of democracy. Plato explores the central strain of the government that is acknowledged with liberty and fairness. Also, this form of government known for its embracement of freedom and equality. Plato’s description and disagreement about democracy is correct because the consequences of such government is that it leads the population to pursue unnecessary desires. Democracy is the type of government where the rule comes from people. Democracy, as we know it today, gives power to the many and in turn give most importance to the idea of obtaining freedom. Freedom empowers people to pursue their desires and obtain every opportunity they can acquire. People in this government have unlimited mobility and have free speech to their ideas and beliefs. However, Plato’s argument is that this freedom will the downfall for this type of government and how people are fueled with their intent to obtain their desire. The enjoyment of free speech can backfire as every citizen is entitled toShow MoreRelatedLack Of Unity For A Democracy Essay2276 Words   |  10 PagesLack of Unity in Minneapolis Humans naturally identify themselves with subgroups in a population, rather than an entire population. In the past, people were separated into aristocracies and distinct social classes by the ruling government, controlling the contact and enforcing a lack of equality between the wealthy and poor. 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