Energy Flow Systems Essay Example For Students

Energy Flow Systems Essay Richard Whites Organic Machine, and William Cronons Changes in theLand, both examine environments as energy flow systems. The energy flow modelwas utilized by the authors to explain relationships within ecosystems. Richard Whites thesis is to examine the river as an organic machine, asan energy system that, although modified by human intervention, maintains itsnatural, its unmade qualities. White emphasizes on energy because it is auseful concept that can be easily understood. He says, the flow of the riveris energy, so is the electricity that comes from the dams that block that flow. Human labor is energy; so are the calories that are stored as fat by salmon fortheir journey upstream. White notes that energy is as concrete as salmon,human bodies, and the Grand Coulee Dam. White wants his readers to think aboutnature and its relationship with humanity. White explains how the river is energy. The Columbia River works asgravity pulls it to the Pacific Ocean. The Columbia is continuously cuttinginto the terrain that it flows through. Over millions of years water rushedthrough the Columbia Basin to form the Columbia River. Water carries soil, silt,and debris downstream. The constant movement of material in the river cuts andshapes the river basin into the land. This movement is a slow and inefficientuse of energy. According to White, only two percent of waters potential energyresults in the work of erosion. The other ninety-eight percent of waters energywas lost as water molecules rub against themselves, the river bed, and the riverbanks. This energy was released as heat into the river. Often the energy of flowing water was not recognized. There areoccasions when rivers do show their power is destructive ways. Power wasusually demonstrated through floods, and more so in flash floods. Thousands ofyears ago, an ice dam in the Columbia River, holding the glacial lake Missoula,broke and created the largest known freshwater flood in earths history. Theflood rushed into the Columbia Channel and created the Grand Coulee and otherrock channels that would have taken the Mississippi River three hundred years atfull flood to create. Salmon are also a part of the Colombian energy model. As the riverworks its way downward to the Pacific Ocean, the salmon work their way up theColumbia to spawn. The energy in salmon can be measured by their body fat andcaloric value. Salmon start their run upstream prepared for the long hard run. Their bodies have stored fat and oil after a year worth of feeding at sea. Thestored energy in salmon is used as energy as they battle head to head againstthe force(energy) of the Columbia River. As the salmon work upstream, they usetheir stored energy and their bodies become leaner. When the salmon reach theirdestination, they are in ill condition. The skinny salmon lay their eggs anddie of exhaustion. Work and energy also link humans to the Columbia River energy model. Alexander Ross and his crew learned how powerful the river was in 1811. Theyattempted to enter the mouth of the Columbia from the Pacific. Ross learnedthat the rivers current and the oceans tide work against each other creatingan astonishing amount of friction. Fresh water is pushed several miles out tosea and the ocean tides can be felt one hundred and forty miles up river. Thetide form sandbars at the mouth of the river and the current crashing on themproduces huge waves and foaming breakers. These breakers form barriers thatAlexander Ross and his crew had to cross. .u2bf64d547bb91bb3bdb01c1d40573f49 , .u2bf64d547bb91bb3bdb01c1d40573f49 .postImageUrl , .u2bf64d547bb91bb3bdb01c1d40573f49 .centered-text-area { min-height: 80px; position: relative; } .u2bf64d547bb91bb3bdb01c1d40573f49 , .u2bf64d547bb91bb3bdb01c1d40573f49:hover , .u2bf64d547bb91bb3bdb01c1d40573f49:visited , .u2bf64d547bb91bb3bdb01c1d40573f49:active { border:0!important; } .u2bf64d547bb91bb3bdb01c1d40573f49 .clearfix:after { content: ""; display: table; clear: both; } .u2bf64d547bb91bb3bdb01c1d40573f49 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u2bf64d547bb91bb3bdb01c1d40573f49:active , .u2bf64d547bb91bb3bdb01c1d40573f49:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u2bf64d547bb91bb3bdb01c1d40573f49 .centered-text-area { width: 100%; position: relative ; } .u2bf64d547bb91bb3bdb01c1d40573f49 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u2bf64d547bb91bb3bdb01c1d40573f49 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u2bf64d547bb91bb3bdb01c1d40573f49 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u2bf64d547bb91bb3bdb01c1d40573f49:hover .ctaButton { background-color: #34495E!important; } .u2bf64d547bb91bb3bdb01c1d40573f49 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u2bf64d547bb91bb3bdb01c1d40573f49 .u2bf64d547bb91bb3bdb01c1d40573f49-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u2bf64d547bb91bb3bdb01c1d40573f49:after { content: ""; display: block; clear: both; } READ: Junk Food Is A Favorite EssayHuman energy challenged the energy of the river mouth in 1811. Thefirst attempt to cross the barrier was a failure. Rosss friend Fox and hiscrew were lost while battling the waves of the seemingly unapproachable mouth ofthe Columbia. Ross and his crew with will and muscle somehow survived the forceof the tide and current and made it across the rivers mouth for the first time. Rosss drama to enter the river was explained by White by using the energy cycle. White explains that lunar energy causes the ocean tide and thesun provides all of the remaining energy of the cycle. The sun heats theatmosphere that heats and evaporates the ocean water and provides the wind tomove the moisture to the mountains. The clouds cool and moisture is released asrain or snow that falls to the land. Gravity pulls the water to the ocean againthrough the rivers and the process starts over again. Man attempts to slow down the natural energy cycle to extract energyfrom the river by building dams.Dams are used to store and regulate waterthat is used to turn turbines. These turbines power generators that produceelectricity. Hydroelectricity was first in abundance. Electricity was a productwithout much demand. Soon farmers used electricity to light their homes and torun small electrical devices such as toasters, irons, and washing machines. Electricity was also used to light city homes, factories, and streets. Thehydroelectric companies still needed more customers to consume the electricitybeing produced. Californians bought electricity and soon major industries wereattracted to the Columbia area because of the abundance of electricity. Electricity was a necessity for the production of aluminum. Aluminum andElectricity were the perfect combination for the production of airplanes. U.S. plane manufacturers are centrally located in the Colombian area because of thisunique utopia of energy. Later, electric energy in the Colombian river basin was producedautomatically. The Columbia River was fist a sewer for radioactive wasteproduced by the production of Uranium. The Columbia was also used to coolnuclear reactors.The result of waste dumping was contamination, and theresult of the Columbia cooling the nuclear reactors was the rivers temperaturerose after the warm water returned to the river. Whites model of the energy cycle in the Columbia River Basin fullydescribes how energy is a naturally reassuring process that is altered by man,but can never be destroyed. William Cronon also uses an energy flow cycle in his book Changes inthe Land. Cronon describes how the Indians and the Colonists create differentcycles with the same environment. The European farmers cleared the forest for fields to plant corn andgrain. Farmers also cleared land for their animals to graze on. The corn andgrain growing in the fields took energy from the rich soil and the water.Thisenergy was then passed to humans or animals that ate the food. The animals thatgrazed the land, took energy from the grass and water. They to would pass energy to humans by the form of labor or in the form of food. The energy in the soil came from the trees that held the water and richtop soil in place. As the trees were cut, the valuable topsoil was washed awayfrom the rain and snow that easily washes into the streams and rivers. Soon thesoil dries and is lifeless because the energy system was disturbed. Cronons solution to the Europeans problem was to sustain the farm land. Wood should be cut when necessary and new trees should be replaced to preservethe soil. In farm lands, crops need to be rotated ignored to sustain sufficientminerals in the soil for the harvest. The trees will hold topsoil andimportantly water in the ground. The fields being sustained avoids the need toclear other fields for farm use. .uf137b8515873577256b7e6a954df6cdd , .uf137b8515873577256b7e6a954df6cdd .postImageUrl , .uf137b8515873577256b7e6a954df6cdd .centered-text-area { min-height: 80px; position: relative; } .uf137b8515873577256b7e6a954df6cdd , .uf137b8515873577256b7e6a954df6cdd:hover , .uf137b8515873577256b7e6a954df6cdd:visited , .uf137b8515873577256b7e6a954df6cdd:active { border:0!important; } .uf137b8515873577256b7e6a954df6cdd .clearfix:after { content: ""; display: table; clear: both; } .uf137b8515873577256b7e6a954df6cdd { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .uf137b8515873577256b7e6a954df6cdd:active , .uf137b8515873577256b7e6a954df6cdd:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .uf137b8515873577256b7e6a954df6cdd .centered-text-area { width: 100%; position: relative ; } .uf137b8515873577256b7e6a954df6cdd .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .uf137b8515873577256b7e6a954df6cdd .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .uf137b8515873577256b7e6a954df6cdd .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .uf137b8515873577256b7e6a954df6cdd:hover .ctaButton { background-color: #34495E!important; } .uf137b8515873577256b7e6a954df6cdd .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .uf137b8515873577256b7e6a954df6cdd .uf137b8515873577256b7e6a954df6cdd-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .uf137b8515873577256b7e6a954df6cdd:after { content: ""; display: block; clear: both; } READ: Microsoft Windows EssayAmerican Indians manipulated their natural environment in a differentway. Indian women were the farm workers. They grew their crops among the trees. The trees held the soil and water. Indian women would also grow many cropstogether. This created a balance of mineral replacement and water replacement. Indian men hunted for meat instead of grazing domesticated animals. Indianswould create utopias for game by burning the forest floor annually.By doingthis, the Indians create growth of small shrubs for the animals to hide inwithout destroying the forest. The sustained yield of crops and animalssupported the Indian lifestyle until it was disturbed by European influences. White and Cronon both use energy flow systems to explain environmentalhistory. Energy is easy to look at in history because man has used it andchanged it throughout time. Energy sustains life and is and ever lasting cycle.

The Night of the Battle free essay sample

Grendel’s perspective of the battle. The night of the battle I rose from the mist of the moors making my way to the Great hall. I ripped the great door off the hinges seeking innocent souls to fill my bloodlust. From what I could see everyone was in deep slumber so I grabbed a warrior to make him my snack , my intention was to devour all in sight. As I advanced toward the next warrior Beowulf , my only thought was how good his blood must taste and how easy it will be to devour him. But much to my surprise this was no ordinary may, he had the strength of thirty in his grip . I howled and shrieked in frightful pain as he held onto my arm not letting go. My mind was racing this man was like no other I had met my match in the worst way possible. We will write a custom essay sample on The Night of the Battle or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page I could not shake him off. I tried to retreat, howling in agony such a howl that struck fear into men’s hearts, but Beowulf kept hold. I howled for him to let go but his hatred of me ran deep and he held fast. His men came at me with swords but I knew that no sword could kill me as many years before I had conjured a charm to protect myself. I wrestled with Beowulf, benches shattered, windows smashed, the sounds of our struggle could be heard across the land and in the next world. Just when I thought I could not endure any more agony, Beowulf tore off my arm, blood poured out and bone was exposed. The pain was like fire and I ran defeated to my lair in the marshes where I now lie as life leaves me. In the distance I can hear the celebrations. I should have never made the trip that night, I look back over my life as it is ending and all I see is loneliness and suffering. Was it my fault I was born a pathetic creature cast out and alone, jealous of others and their happiness? I took my bitter revenge and now I must pay the price. for I Grendel the evil monster was defeated and left to die alone. Kadeisha Crewe 8/10/2011 Ms Church A Monsters Lesson 06 A Different perspective

A Sample D&D Essay Rubric - Use It to Create an Effective Game Plot

A Sample D&D Essay Rubric - Use It to Create an Effective Game PlotA D&D sample essay rubric is a fantastic way to help improve your writing. We are so used to this text-based format that we forget how powerful it can be to turn to a rubric or a system to help guide us through a writing process. And as it turns out, using a standard essay writing format can have the same effect on a D&D campaign as it has on a traditional RPG.When using a D&D sample essay rubric you are not just giving yourself a framework from which to begin your D&D campaign. You're also providing yourself with a guide for the parts of the D&D campaign, you will likely need to research and create. If you aren't familiar with the world you'll be playing in, a structured way to organize all the materials and keep them together helps you avoid the common pitfalls of DMing. There's no sense in spending hours researching information about a map or a location if you don't have any experience with it.A sample D&D essay rubric is much more than a road map for your game. It's more like a guide to the tools you'll need to research, organize, and organize the information you want to include in your campaign. It's not just some random collection of strings of ideas you'll want to use later. You'll be guided by a rubric to be able to use the entire material you find around the world and combine it into something usable to you.D&D is a game that has a story arc and always continues. The simple act of creating a campaign can be confusing and overwhelming at first. With a rubric you'll be able to start the exploration of the world you'll want to explore and organize the materials you will need to create a personal narrative. If you find the tools of a d&essay rubric to be too overwhelming you can easily access the tools from a normal essay writing program.Essay writing in D&D is a personal decision. The rules of the game make this decision for you and a good guide can guide you to the end. You might be using a pre-made plan or rubric or your own unique structure. Either way, a simple rubric can provide you with a great starting point for your world.The essay you will create in D&D is an important part of the story you're writing. It should add character and suspense to the narrative. But by doing so it needs to be kept organized. This means setting a proper structure for your campaign.Using a sample D&D essay rubric is a great way to keep your game moving forward. It will give you a great starting point and let you build on it as you become more experienced in this story-driven world. A good guide can take the chaos out of writing and let you get back to the fun.

The Biblicality of the social clock Essay Example

The Biblicality of the social clock Essay The belief that there are descriptive and prescriptive age norms concerning adults during their developmental shift involves the concept of the social clock. The social clock hinges on its description of society’s expectations where time to get married and have children at the same time attaining more of life’s burdens. For example, the traditional or what has been considered as the perception of women who have not yet entered into matrimony as individuals who are negatively appraised during their middle adulthood stage in contrast to the young adults. Social clock has something to do with an expectation that a person must somehow behave or conduct him/herself according to established developmental milestones or else, risk the consequences that may happen because the individual has allowed it to slip through ( Altenbernd, 2004). Discussion The concept is not unknown to anyone today, this despite the fact that many among Americans have grown to know in informal set-ups that the social clock exists and must be followed. We will write a custom essay sample on The Biblicality of the social clock specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on The Biblicality of the social clock specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on The Biblicality of the social clock specifically for you FOR ONLY $16.38 $13.9/page Hire Writer In the Bible, there are direct references when the Scriptures contradicted this traditional system. Although the Bible also showed how patriarchs like Abraham and his wife Sarah, had observed (in one instance, in panic) that both are past their childbearing stage and laughed (especially Sarah) when the angel did say that they will have their son born soon. In Genesis 17: 11, it says that â€Å"Now Abraham and Sarah were old, well advanced in age; and Sarah had passed the age of childbearing (NKJV).† My opinion and belief is that when a person has the same God as that of Abraham, Isaac and Jacob, there is no confinement to the so-called social clocks. In the case of Sarah and Abraham, they were indeed past the age to bear children, and the book of Genesis showed that God is who He is, and precisely He can do with anything; He made Sarah deliver a baby boy just as He told them.

Free Essays on Two Towers

To begin with, let us examine the nature of Tolkien’s fiction. J. R. R. Tolkien’s Middle-earth literature, The Hobbit and The Lord of the Rings trilogy in particular, are usually referred to and even marketed as fantasy. But would Tolkien himself think of his work as fantasy? Traditionally, the genre of fantasy has been defined as stories concerned with things which cannot, or could not, happen. This definition becomes problematic, though, as it would easily apply to the literature of mythology: modern rationality tells us that much of the events described in Greek, Norse or even Judeo-Christian mythology could not have happened without the aid of supernatural forces that clearly are absent from the world as we know it. Mythology, however, is not fantasy: the purpose of mythology is to provide a culture with an acceptable explanation for how that culture’s world came to be. The originators of a mythology believed not only that the events described could happen, but really did happen. It would be convenient to simply levy upon fantastic literature the requirement that the story be concerned with a world other than our own, or that it take place only in the present or the future. But that would introduce unnecessary and equally problematic distinctions. Consider instead a definition of fantasy proposed by the author Joanna Russ: fantasy is a journey by a traveler (perhaps the reader) to a world so beautiful or wondrous that the traveler/reader wishes to or does stay in that fantastic world. This definition excludes mythology: mythologies are not about an alternate reality, but about the past of the world that we know. Fantasy, then, is escapist, while mythology is reality-bound, if obsolete. Further, the mythology of a fantastic world would still be considered a proper mythology, if it attempted to explain the origins of that fantastic world; but it would be fantastic mythology a fantasy nonetheless. Thi... Free Essays on Two Towers Free Essays on Two Towers To begin with, let us examine the nature of Tolkien’s fiction. J. R. R. Tolkien’s Middle-earth literature, The Hobbit and The Lord of the Rings trilogy in particular, are usually referred to and even marketed as fantasy. But would Tolkien himself think of his work as fantasy? Traditionally, the genre of fantasy has been defined as stories concerned with things which cannot, or could not, happen. This definition becomes problematic, though, as it would easily apply to the literature of mythology: modern rationality tells us that much of the events described in Greek, Norse or even Judeo-Christian mythology could not have happened without the aid of supernatural forces that clearly are absent from the world as we know it. Mythology, however, is not fantasy: the purpose of mythology is to provide a culture with an acceptable explanation for how that culture’s world came to be. The originators of a mythology believed not only that the events described could happen, but really did happen. It would be convenient to simply levy upon fantastic literature the requirement that the story be concerned with a world other than our own, or that it take place only in the present or the future. But that would introduce unnecessary and equally problematic distinctions. Consider instead a definition of fantasy proposed by the author Joanna Russ: fantasy is a journey by a traveler (perhaps the reader) to a world so beautiful or wondrous that the traveler/reader wishes to or does stay in that fantastic world. This definition excludes mythology: mythologies are not about an alternate reality, but about the past of the world that we know. Fantasy, then, is escapist, while mythology is reality-bound, if obsolete. Further, the mythology of a fantastic world would still be considered a proper mythology, if it attempted to explain the origins of that fantastic world; but it would be fantastic mythology a fantasy nonetheless. Thi...

Army Family Essay Example | Topics and Well Written Essays - 750 words

Army Family - Essay Example I realized what color I was, but that really didn’t seem to affect anything in the communities where I was growing up. Base housing was very diverse and I realized that there were surely more white kids than black kids. But I also noticed that there were more black kids than Hispanic kids and Asian kids as well. I had friends, close friends, of all colors, as did my parents. We went over to the Hispanic family next door for supper and they cam to us. Only they weren’t ever viewed as Hispanic. They were just the Ramirez’s. I do remember going to some parties when I was a kid and all of us were the same race. I do remember thinking, â€Å"This is weird. Where are the Ramirez’s?† I have no idea if these parties were planned so that everybody was the same race as my parents or not, but I sort of doubt it. So I guess what I am trying to say is, as a kid growing up in military housing, I never though about race at all, mine or anyone else’s. When I arrived in North Carolina, I first became aware of race. For one thing, I noticed that people of the same color tended to stay together. There seemed to be a rule that said people of different colors didn’t mix. I noticed it right away and asked my mother about it. She simply said that things are different everywhere and that in North Carolina, that’s just the way it was. ... and Asian kids apparently just had to figure out something else to do than have friends because there weren’t many of them on base at that time in North Carolina. I can honestly say I didn’t try to challenge the rule in any way. When you are new to a base, the kids that approach you first are the kids that become your friends. When only kids of your same race approach you, well then that is the friends you have. I remember thinking it was weird at first, and then after a year it was perfectly normal. The second lesson about race I learned was that some races are better than others at certain things. Black kids can run fast and dance best. They listen to rap music and play basketball. White kids are smartest and are better at sports like baseball. Hispanic kids play soccer and have lots of sisters and brothers. For the first time, I was introduced to racial stereotypes and this I struggled with. I didn’t fit into the definition of any of these races. I was smart, awesome at basketball and had five brothers and sisters. I could have been white, black or Hispanic. But for the first time, I felt like I had to downplay an aspect of who I was because I had to conform to somebody else’s notion of what I ought to be based on my race. The final thing I learned about race in North Carolina is that people of different races had nasty names for each other. It was in North Carolina that I heard racial epithets, from all races, for the first time. Perhaps I was incredibly sheltered growing up. I can say that I wouldn’t trade it for anything. I feel as though I still have a lot of that pre-North Carolina person in me. I still see color, not race. I have a more nuanced understanding of what race means in a societal context, but the reality is I still am largely unaware of

Implementation of an Industrial Hygiene Program Research Paper

Implementation of an Industrial Hygiene Program - Research Paper Example This essay will provide a hygiene program for pharmaceuticals with a focus on handling of hazardous chemicals and other raw materials for the manufacture or research and development of drugs. R&D and work areas for pharmaceuticals are one of the most dangerous places for operators and workers, if these are not adequately designed and control systems are not properly in place. Providing a hygiene system for pharmaceutical laboratories is therefore a challenging task. Pharmaceuticals produce small groups of high-potency active ingredients. These compounds pose risks to persons who are involved in the manufacturing. The chemicals are potentially toxic, can cause cancer, â€Å"teratogenic, mutagenic,† and are really dangerous even in small amounts (Fay & Phillips, 2002). In controlling chemicals, there must be a protective barrier between the chemical and the person handling the chemical. There are acceptable working conditions in the handling of chemicals, for example pharmaceutical ingredients, agricultural chemicals particularly herbicides and pesticides, dyes and pigments, and other chemicals such as radioisotopes and intermediates. In the development of procedures and equipment to protect persons handling the chemicals, there are two steps that should be followed. First, there must be a method of control. Second, how to attain the methods and how to attain them must be formulated. Analytical chemistry is used in determining smaller quantities and this can be attained through new computer applications or software. The company should provide an effective design and layout of the work area that is conducive to a clean and effective work environment. Designated areas for hazardous chemicals have to be clearly separate from other rooms designated for offices. Proper handling of materials should be the order of the day. Training of personnel who will handle sensitive materials and chemicals should be a part of the procedures. Training should be conducted by