Cartesian Diver Lab Report Essay Example

Cartesian Diver Lab Report Essay Example Cartesian Diver Lab Report Paper Cartesian Diver Lab Report Paper First a 2-liter bottle is filled with water to almost all the way to the top, then prepare the diver which is a test tube, fill the test tube about 50-60% with water, lace the diver inside the bottle the diver should float near the water surface then secure the cap on the bottle. When the container is squeezed, the diver should sink to the bottom of the container. Release the bottle slowly, the diver should come up in reverse order. The Cartesian diver shows that air is compressible and water is incompressible. When the container is squeeze, the pressure from squeeze is distributed equal throughout the container and the volume of air in the diver decreases because of the increased pressure of the water surrounding the diver. Since the volume of air inside the diver decreased, and water filled up where the air use to be, the diver becomes denser and will begin to sink if enough pressure is applied. It begins to sink because it becomes denser so the upward force of the water is not great enough to keep the diver floating. When the container is not squeezed, the diver will float back to the top because the pressure that was compressing the air in the diver was relived so the air could take is normal volume again which make it least dense. Therefore the Cartesian diver does demonstrate the compressibility of a gas, the incompressibility of water. The Cartesian diver experiment also demonstrates the Pascals law. According to Pascals law, when the bottle is squeezed, the applied pressure increase throughout the bottle by the same amount include inside of the diver. The control volume for this lab experiment is the entire water bottle including the diver inside. Objects float or sink as a result of their density. Density can be described as the amount of weight in a specific volume. An object is buoyant if its relative density is less than the density of the fluid that is surrounding it. According to Archimedes principle, an object will be buoyed up by a force that is equal to the weight of water that it displaces. The air inside the diver can be compressed much more easily than water, therefore the water level inside the diver increase as the bottle is squeezed due to the pressure increase. The applied pressure by squeezed the bottle can be determine by using this equation: P =F/A Where P is the applied pressure, F is the force by the fingers and A is the area of the fingers touch the bottle 14. 14 (CM) With the applied pressure, the pressure rise in the outlet based on water level change inside the diver can be estimate by using this equation: P =Pugh Where P is the applied pressure, p is the water density, g is gravity and h is the height of the water rise, 0. CM. Combine equation (1) and (2) the force by the figure equals 0. NON and applied pressure equals 29. Papa The Cartesian diver experiment demonstrates Archimedes principles. Objects either float or sink because of buoyancy, buoyancy is the upward force that keeps objects floating. If the buoyancy exceeds the weight then the object floats and if the weight exceeds the uncanny then the object sinks, therefore Neutral buoyancy is achieved when the mass of an object equals the mass it displaces in a surrounding med ium. This offsets the force of gravity that would otherwise cause the object to sink. An object that has neutral buoyancy will neither sink nor rise. According to Archimedes principles the buoyant force acting on a body of uniform density immersed in a fluid is equal to the weight of the fluid displaced by the body, and it acts upward through the centered of the displaced volume: xv_sub Where F_B is the buoyancy force, p_f is lid density, g is gravity and V_sub is the submerge volume. F=MGM Where F is the weight of the object, m is the mass of the object and g is the gravity. By relating equation (3) and (4) the buoyancy force equals 0. 1 N and mass of the tube is about leg. IV=part Where P is the pressure, V is the volume, p is the density, R is the gas constant and T is the temperature. P_2/P_1 =h_1/h_2 Where P_l the pressure rise of the bottle, P_2 Pressure rise of the diver, h_l is the height of pressure rise in bottle and h_2 is the height of pressure rise in diver. Cartesian diver can achieve a neutrally buoyant state. However when the Cartesian diver reach the neutrally buoyant state it will be an unstable equilibrium like a ball on a hill, a very small change can cause to rise or sink again. The hydrostatic pressure is a very important factor in the Cartesian diver, the hydrostatic pressure is the pressure exerted by a fluid at equilibrium due to the force of gravity. The hydrostatic pressure of the water increase as the diver sinks, for this particular Cartesian diver a small change in hydrostatic pressure will affect the diver to sink, rise or stay and the key to achieve the diver to stay tutorial buoyant is the precise measurement of how far the diver sinks before it sinks completely or floats. The principle of buoyancy of a submarines are very similar to the Cartesian diver. Submarines can control their buoyancy by pumping air into the ballast tanks increases the submarines buoyancy and allows it to float to the surface like Cartesian diver at initial state when there is enough air inside of the diver, the Cartesian diver can also control buoyancy depends on how hard the person squeezed the bottle. Submarines could also releasing air and allowing water to fill the ballast tanks to decreases the feminines buoyancy and allows it to sink, similar to the Cartesian diver when the bottle is squeezed, the water level in diver increase which also decrease its buoyancy, so the Cartesian diver sinks. For submarines to reach neutral buoyancy, the water filling in the ballast tanks must be precise so the buoyancy force will equals to the weight of submarine, similar to the Cartesian diver when the applied force is just right, the diver will to reach neutral buoyancy. The Cartesian diver lab shows the fundamental principles of Pascals law and buoyancy. At the initial state of the Cartesian diver, the diver floats on top of the water. Because of buoyancy is greater than the divers weight then as bottle is squeezed the pressure increase uniformly which cause the diver increase its water level which decrease its buoyancy so it drops to the bottom of the bottle. When the bottle is release the diver rise to top of the water again due to the pressure that was compressing the air in the diver was relived so the air could take is normal volume again which increased the buoyancy back to its initial state.

Advanced Clinical Nutrition Research Paper Example | Topics and Well Written Essays - 1000 words

Advanced Clinical Nutrition - Research Paper Example Many theories have been advanced to explain this analogy. But the most acceptable is as follows; the trigger in heart attacks and some forms of stroke is the accumulation of cholesterol rich plaques (atheromas) in blood vessels of the heart and brain. The body detects these plaques as foreign and unwanted in the body; hence, through the process of inflammation, the body tries to remove the plaques from the walls of blood vessels. However, as the body is trying to remove the foreign plaques from the walls of blood vessels, circumstances may go wrong in that the plaques may rupture causing aneurysms or it may trigger blood clot formation. These clots normally obstruct blood flow to vital organs of the body causing heart attacks or cerebral infarcts (strokes). 2) Choose a nutrient or food that is considered both â€Å"anti-inflammatory† and â€Å"heart healthy†. Provide evidence that supports that your nutrient/food is â€Å"heart healthy† using key studies from the literature (described sufficiently and referenced appropriately). Beans. Foods like beans are anti-inflammatory in the sense that they do not have triggers of inflammation which may predispose to cardiovascular diseases. ... Beans are anti-inflammatory from many respects. Clinically, beans have been observed not to cause any heart conditions. Basically, beans do not have any cholesterol; hence, they do not trigger any inflammatory response in arteries of the heart. Epidemiologically, studies have revealed that incidences of heart conditions with plant products are rare, but animal products have been implicated. 4) Is the anti-inflammatory evidence clear? Why or why not? The anti-inflammatory response is clear in that there is no content of LDL cholesterol in beans and bean products. 5) Briefly, how would you design a study to provide information that would strengthen your case for the anti-inflammatory effects of your nutrient/food in humans? I would conduct biochemical tests on beans to ascertain that they do not have LDL cholesterol that triggers inflammation to cause cardiovascular diseases. QUESTION #2: Consider the National Cholesterol Education Program (NCEP), adult treatment panel III (ATP III) re commendations for reducing CVD risk. Discuss EITHER the dietary soluble fiber OR plant sterols/stanols recommendation and answer the following questions: 1) First, mechanistically speaking, how is that particular recommendation supposed to lower CVD risk? Be specific Introduction of soluble dietary fibers is a strategy for reducing cardiovascular disease. These foods have trace amounts of saturated and trans fats, hence, they reduce incidences of cardiovascular disease. The therapeutic lifestyle changes that are recommended to reduce cardiovascular disease risk are that fiber should be between 20 to 30 g per day. 2) Where did the recommendation itself come from? In other words, what research led to this recommendation?

Analysis of Is Google Making Us Stupid by Nicholas G Carr Essay

Analysis of Is Google Making Us Stupid by Nicholas G Carr - Essay Example AI is nothing more than the collective compilation of human knowledge accumulated over bodies of knowledge previously learned.people with very high I.Q.s may think so (from whence such comments may come), they missed to consider the fact that a person with the highest I.Q. still cannot match the speed by which a computer makes calculations and even decisions on the most complex matters. In Stanley Kubrick’s 2001: A Space Odyssey, quoted by Carr in this essay, â€Å"Is Google Making Us Stupid?,† Dr David Bowman’s and Dr Frank Pooles mission aboard the American spaceship Discovery One bound for Jupiter experienced trouble with their supercomputer HAL (an acronym for Heuristic Algorithm). After surviving several attempts to shut him out of the spaceship, Bowman coldly disconnected HAL’s circuits after it nearly sent him to a deep-space death after a malfunction. Whatever human qualities it has subsumed, machines are still made by men. Bowman’s attachment to this machine was a product of science which allowed the machine to possess a seeming human quality. If a man does succeed to make a replica of himself and enhance this subsumation to make the machine assume fine human qualities, there exists an ethical issue. If that machine, as most people and Carr fear, dominates over man, there is a question where to set the limits of manâ€℠¢s reliance on artificial intelligence must end. In the end, that machine still has no soul. It is still a machine unless you can manufacture the soul and add it to that contraption. The author’s personal experience using Google, with so many features on the fly, was enjoyable saved for unavoidable ungrammatical chat language (jejemon). It has shaped language so that it is deliverable in short quips as in telegrams cutting across language barriers, with its ultimate aim, among other things that the information technology may bring.  

Collective unconscious Essay Example for Free

Collective unconscious Essay Carl Jung was born in Kesswyl, Thurgau, Switzerland on July 26, 1875. His father was kind but weak, while his mother was an insecure woman but with two personalities: (a) kind and loving (b) harsh and aloof. Jung was lonely at childhood making him introvert. In 1906 he published The Psychology of Dementia Praecox, a psychoanalytic treatment of schizophrenia. He first met Freud in 1907 and Freud regarded Jung as his son and they travelled and worked together that lasted until 1913. Freud and Jung had an argument that ended their friendship. Freud considered it as the â€Å"Great Loss†. Jung is the first president of International Psychoanalytic Society. Jung established his own school of psychology named â€Å"Analytical Psychology†. Jung begun the structure of personality and made the ego, personal unconscious and the collective unconscious. Dynamics of Personality Carl Jung conceived that the personality or psyche as being a partially closed energy system. Energy from the outside sources must be added into the system and the system will only be perfect and stabilized if it is completely closed. He called psychic energy as the energy by which the work of personality is performed. Psyche – refers to all psychological processes: thoughts, feelings, sensations, wishes, etc. It is also another term for personality. Principle of Equivalence – states that if a particular value weakens the sum of the energy represented by the value will not be lost from the psyche but will reappear in a new value. Principle of Entropy – states that the distribution of energy in the psyche seeks equilibrium and balance. Structure of Personality. 1. Ego – it is one’s conscious mind. It serves as the organized conscious mediator between the person and reality especially by functioning both in the perception of and adaptation to reality. 2. Personal unconscious – the material in the personal unconscious comes from the individual’s past. It consist f experiences that was once conscious but have been repressed. 3. Collective unconscious – is the part of the collective psyche that is unconscious. It is the storehouse of latent memory traces inherited from one’s ancestral past. Archetypes – it is the universal thought form or predisposition to respond to the world in a certain way. It emphasizes potentialities; it represents different potential ways in which we may express our humanities. The Self – it represents the unity of all parts of the personality. It is the central archetype. Self Ultimate unity of personality (the central archetype) Persona Mask or Social Role Shadow Animal instincts or the opposite of Persona Anima Feminine side of male psyche Animus Masculine side of the female psyche. The Persona – refers to the social role that one assumes in society. It is a mask that one wears to adjust to the demands of society. The Shadow – encompasses those unsocial thoughts, feelings and behaviours that we potentially posses and other characteristics that we do not want to accept. The Anima – feminine side of the male psyche. The Animus – masculine side of the female psyche. Word association – a test used by Jung to detect complexes. The test is composed of a list of words; as each word is presented, the patient responds with the first word that comes to his or her mind. Complexes – an organized group of thoughts, feelings and memories about a particular concept that has power to draw new ideas into it and interpret them accordingly. Basic Attitudes Extroverted attitude: a standpoint characterized by an outward flowing of personal energy — an interest in events, in people and things, a relationship with them, and a dependence on them. Introverted attitude: characterized by an inward flowing of personal energy—a withdrawal concentrating on subjective factors. The Four Functions Thinking gives meaning and understanding; actions are a result of an intellectually considered motive; life is based on principles. Feeling a rational function that weighs, values, and attaches a proper value to things. Truth is seen as inter-subjectivity. Sensation emphasis on perception through the senses. It is a reality functions because it yields facts and the representations of the world. Intuition tells of future possibilities and gives information of the atmosphere which surrounds experience. Causality vs. Teleology For Jung both past and the future standpoints are important in determining the present behaviour. Teleology explains the present in terms of the future while causality explains the present in terms of the past. Individuation process of restoring wholeness to the psyche in adult development. Transcendence Function – is capacity to unite all of the opposing trends of the several systems to work toward the perfect wholeness. Self realization – is process of development that involves individuation and transcendence. In the process, the systems of the psyche achieve their fullest most complete differentiation and harmonious blending of all aspects of a human’s total personality. Strengths Jung’s theory as the first to discuss the process of self actualization. He was the first to emphasize the importance of the future in determining human behaviour. He stressed the attainment of selfhood as the main motive in human behaviour. Weaknesses Jung’s method was not systematic and puts too much emphasis on occultism, spiritualism and religion. His theory was said to be unscientific, unclear, inconsistent and contradictory. His self actualization is only applicable to the highly intelligent, well educated and those who have plenty of time to reach a degree of individualism. Sources: Engler, B. (2006). Personality Theories: An Introduction. USA: Houghton Mifflin Company. Hall, C. , Gardner, L. (1975). Theories of Personality. USA: John Wiley Sons, Inc. Burger, J. (2008). Personality. Belmont, California, Wadsworth Clonniger, S. (2004). Theories of Personality: Understanding Persons. USA: Pearson Prentice Hall Mitchell, G. Carl Jung Jungian Analytical Psychology. Retrieved from http://www. trans4mind. com/mind-development/jung. htmlÃ'Ž

Siddhartha :: Essays Papers

Siddhartha In the book â€Å"Siddhartha† Herman Hesse shows even though one may have a goal in mind there are many paths. In this story Siddhartha and his friend Govinda have the same goal, and the two friends end up taking separate paths. Siddhartha however becomes distracted. When looking at the book â€Å"Siddhartha† one can see three detours Siddhartha took, which most readers don’t see; this is important because in the end it helped Siddhartha find self-fulfillment. Siddhartha starting out as a Brahmin left him at a disadvantage when searching for Nirvana. He realizes the many gods that they worship are of no value because the only true god is Atman. He searches for a way to concentrate on this one god, and eventually attain Nirvana. In these thoughts he also comes to the conclusion that the lifestyle he has is a distraction. His possesions, his feelings, his beliefs are all a distraction which leads him to his conclusion to join the Samanas. He joins the Samanas and thinks he would like their lifestyle. On his journey with the Samanas he learns many things from them like how to seperate himself from want, and to divide spirit and body. This lesson however, only brought him further from his goal as you will see in the development of this essay. Siddhartha soon leaves the Samanas after showing how he has surpassed the elder Samana by hypnotizing him. He goes on a new journey to see Buddha, leaving his friend with Buddha and himself ending up in a village called Samsura. In Samsura he becomes further than he's ever been from attaining Nirvana, but again in the end its for the best. He becomes like the "normal" people he has always seen himself better than. He gets depressed, takes on gambling, and becomes fond of the drink. His gambling driven by his hate of greed, and the desire to show his hatred causes him to earn more and more to repeat the vicious cycle. As much as this looks like the worst thing that could have happened, it is really the best. Siddhartha realizes the spiritual state he was seeking is lost by his "new" life. He goes to the river he once crossed, in hopes of drowning himself and the pain he feels being so far from his "Self".

Omnivore

After having read part I of Michael Pollen's book these chapters give us a view of the beginning of the step by step process of food from the farmlands to the dinner table. Instead of the question â€Å"What's for dinner? â€Å", it would seem more like â€Å"What's in the dinner? â€Å". Pollen takes us on a Journey through the fields in Iowa and concludes with a trip to analyze meal he shared with his family at a local McDonald's.He allows us to take a look inside of the process by which corn is used in a numbers of ways corn is used other that as a food source. By the end of part l, there is a better understanding of how corn can be used as not only a food source, but as fuel, sweetener, alcohol, as well as a chemical for explosive devices. Pollen visits a farm in Iowa and gives a very detailed view on the process by which corn is farm through the fields, processed through the grain elevator plant not far from the corn fields.He also explains the introduction to the topic of i ndustrial corn and its origins some hundreds of thousands of years ago. Pollen goes on to explain how farmers must increase the amount of corn that is planted in order survive money loss in the process, guaranteeing a harvest for the following year. In addition to his view of the process by which corn is harvested and processed for use other that food, Pollen pays a visit to Pokey Feeders cattle farm in Kansas where the cows are feed processed corn to help them become larger.The fiestas of these animals is cut short because they are now being feed a food that naturally is not a part of their nature (grass). To prevent them from getting sick, the cows are being given antibiotics that are eventually passed onto the meat that is consumed by the buyer. The increased demand for the meats of these animals has led farmers to mass breed cows at an alarming rate, placing consumers at risk for the threat of disease ( E. Coli 01 57:HE). Pollen's description of fast food was definitely a shocke r.He talks about all the synthetic food additives that put into fast food the give hem their color, texture and taste. It is scary to imagine that so many chemicals (Ex. TPTB) can be used to make something that so many people find tasty. When a McDonald meal is broken down, it seems almost unheard of that anyone would eat this separate on its own. Pollen voices his concern on how so much energy is wasted on creating these meals, the tens of thousands of corn calories being consumed that could have been used for other food purposes to feed so many hungry people. The first part of this book was definitely an eye-opener.Pollen's book allows us to take a second look at the way a lot of people get their food. We are given a better idea on how food is grown in its natural state, the industrial process by which food is treated with chemicals, how these chemicals may become a part of the product itself to stimulate growth, and how this chemicals may eventually find their way to our dinner p lates. After reading this first part, this book can make anyone want to diversify their diet by eating more game meat, growing their own food and living off of the land. Wouldn't that be great?

What Did Asian Entering The Transportation Market Have An...

To what extent did Uber entering the transportation market have an effect on the unemployment rate and income? Introduction Over the past century the taxi transportation business has grown and spread across different regions of the world. As it grew in popularity, it became demarcated as the transportation style of the high and few middle class in the society who could afford its high rates. Over these times, the taxi industry had been facing high regulations coupled with minimal innovations and transformations. The most common operating system for taxis involved getting the taxi li cense and operating through a taxi company with telephone services. Control mechanisms such as the taxi medallion system were also enacted to provide a regulation on the number of taxis operating within a region at every given time. The medallion system also went into making the demand for the taxis within a region higher than the supply thus making them a highly valued transport asset and justifying for the high price rates offered. The entry of the Uber taxi service into the industry has revolutionized the taxi transport industry. It has provided technological innovations that have modernized the charging system and operations of taxis. Through modernization, technological innovations, and operating under economies of scales the Uber taxis are able to offer very low prices to its consumers compared to the regular taxi operators. In result, the Uber transport business has in the past 6 grown toShow MoreRelatedEconomic of Globalization3767 Words   |  16 Pagesenterprises, because they are key vectors of globalization and they have become key actors in the globalization process. 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