English Learning Tips for ESL Learners and Classes

English Learning Tips for ESL Learners and Classes Here are various English learning tips to support you or your class improve your English. Pick a couple of English learning tips to begin today! Ask yourself week by week: What would I like to become familiar with this week? Posing yourself this inquiry consistently will assist you with halting and ponder what is generally critical to you. It is anything but difficult to concentrate just on the present unit, language structure work out, and so on. In the event that you pause for a minute to stop and set an objective for yourself consistently, you will see the advancement you are making and, thus, become progressively propelled by how rapidly you are learning English! You will be shocked at how this sentiment of accomplishment will persuade you to learn significantly increasingly English. More on the best way to improve your general way to deal with learning English. Rapidly survey significant new data in no time before hitting the sack. Research has indicated that our minds procedure data that is new in our cerebrums while we rest. By in a matter of seconds (this implies rapidly - only a look at what you are really going after right now) going over some activity, perusing, and so on before you rest, your mind will work away on this data while you rest! Different thoughts on how your cerebrum functions While doing practices and alone at home or in your room, communicate in English out loud. Interface the muscles of your face to the data in your mind. Similarly as understanding the nuts and bolts of tennis doesn't make you an extraordinary tennis player, understanding syntax rules don't mean you can consequently communicate in English well. You have to rehearse the demonstration of talking frequently. Talking about yourself at home and perusing the activities you are doing will help interface your cerebrum to your facial muscles and improve elocution and make your insight dynamic. Do five to ten minutes of tuning in at any rate four times each week. Before, I chose I expected to get fit and went running - normally three or four miles. Indeed, after not having done anything for a long time, those three or four miles truly hurt! Obviously, I didn't go running for an additional couple of months! Figuring out how to comprehend communicated in English well is fundamentally the same as. On the off chance that you conclude that you going to try sincerely and tune in for two hours, odds are that you won't do additional listening practices at any point in the near future. On the off chance that then again, you start off gradually and listen frequently, it will be simpler to build up the propensity for tuning in to English all the time. Search for circumstances in which you should talk/read/tune in to English This is likely the most significant hint. You have to utilize English in a true circumstance. Learning English in a study hall is significant, yet trying your English information in genuine circumstances will improve your familiarity with communicating in English. On the off chance that you don't know about any genuine circumstance, make new ones for yourself by utilizing the Internet to tune in to the news, compose English reactions in gatherings, trade messages in English with email buddies, and so on.

Scheduling -312 Forum 3 Assignment Example | Topics and Well Written Essays - 250 words

Booking - 312 Forum 3 - Assignment Example The leading body of experts should likewise stay in contact with the characterization social orders of the delivery business to stay aware of the laws and rules. A timely arrangement and planning framework has now gotten fundamental in the delivery business. The propelled framework would likewise guarantee the quality, productivity, collaboration, time the executives, security of the group, and apparatus. When a brought together computerized framework is utilized, the greater part of the things will be dealt with (Oz, 2008). There might be numerous difficulties confronted when it is tied in with actualizing an advanced programming framework for the upkeep and treatment of the tasks. The product would require gifted specialists to deal with and work it for various errands (Richard, 2009). There will be progressively gifted work required on the product to join every movement, for example, support, security, and quality control. The information systems are intricate which are generally trying for the leading group of

Essay Topics About Horror

Essay Topics About HorrorIt seems like more people are being asked what their favorite essay topics are. Some say it's writing about horror, others love writing about nature, and still others just love to write about different types of fiction, but the common question still remains, 'What's your favorite essay topic?'There is no way for me to be able to answer this question because as much as I am a horror writer, there are so many other types of writers out there and my favorite essay topics usually depends on my mood at the time. One of my favorite essay topics is, 'What's Your Favorite Word, Word.' This one answers the age old question, 'What is your favorite word?'The first thing you have to do is decide which of your favorite words you would prefer to use in your writing. You can either look it up yourself. If you want to start by looking it up, you will have to get started with a free online dictionary. The word that you are looking for is, 'murder' so start there.When you have found the word, you are going to have to look it up in your own dictionary so that you know it properly. I have been told that it is used to refer to murder.The second method is to write a short story about a murder and then read it to yourself. Make sure that it does not contain violence or gore. I used this method when I was starting out writing short stories for publication. Once you get a feel for it, you can move on to something else.The third method is to go online and search for a series of articles about this topic. There are actually a lot of websites that allow you to do this. The stories in the articles have to be short so that you don't spoil the story for yourself.The fourth method is to find a website that has a lot of them written by the likes of Michael Crichton, Michael Crichton, John Grisham, Stephen King, and many others. Go to their websites and just click the link that says, 'ENTER CONTENT' and put in the keyword you have chosen in the article box and click on 'Search.'

Poetry Styles What Is a Villanelle

A classic form of poetry, the villanelle has a strict form of 19 lines within five triplets and a repeating refrain. These poems are very song-like and are fun to both read and write once you know the rules behind them. What Is a Villanelle? The word villanelle comes from the Italian villano (meaning â€Å"peasant†). A villanelle was originally a dance song which Renaissance troubadours would play. They often had a pastoral or rustic theme and no particular form. The modern form, with its alternating refrain lines, took shape after Jean Passerat’s famous 16th-century villanelle, â€Å"J’ai perdu ma tourtourelle† (â€Å"I Have Lost My Turtle Dove†). Passerat’s poem is the only known example of the villanelle form before it was taken up and brought into English in the late 19th-century. In 1877, Edmund Gosse spelled out the strict 19-line shape of the form in an article for the Cornhill Magazine, â€Å"A Plea For Certain Exotic Forms of Verse.† A year later Austin Dobson published a similar essay, â€Å"A Note on Some Foreign Forms of Verse,† in W. Davenport Adams’ Latter-Day Lyrics. Both men wrote villanelles, including: Gosses Wouldst Thou Not be Content To DieDobsons When I Saw You Last, Rose.   It was not until the 20th-century that the villanelle truly flowered in English poetry, with Dylan Thomas’ â€Å"Do not go gentle into that good night† published at mid-century, Elizabeth Bishop’s â€Å"One Art† in the 1970’s, and many more fine villanelles written by the New Formalists in the 1980s and 1990s. The Form of the Villanelle The villanelle’s 19 lines form five triplets and a quatrain, using only two rhymes throughout the whole form. The entire first line is repeated as lines 6, 12 and 18.The third line is repeated as lines 9, 15 and 19. This means that the lines which frame the first triplet weave through the poem like refrains in a traditional song. Together, they form the end of the concluding stanza. With these repeating lines represented as A1 and A2 (because they rhyme together), the entire scheme is: A1bA2 abA1  (refrain) abA2  (refrain) abA1  (refrain) abA2  (refrain) abA1  (refrain)A2  (refrain) Examples of Villanelles Now that you know the form a villanelle follows, lets look at an example. â€Å"Theocritus, A Villanelle† by Oscar Wilde   was written in 1881 and is a perfect illustration of the villanelle style of poetry. You can almost hear the song as you read it. O Singer of Persephone!In the dim meadows desolateDost thou remember Sicily?Still through the ivy flits the beeWhere Amaryllis lies in state;O Singer of Persephone!Simà ¦tha calls on HecateAnd hears the wild dogs at the gate;Dost thou remember Sicily?Still by the light and laughing seaPoor Polypheme bemoans his fate:O Singer of Persephone!And still in boyish rivalryYoung Daphnis challenges his mate:Dost thou remember Sicily?Slim Lacon keeps a goat for thee,For thee the jocund shepherds wait,O Singer of Persephone!Dost thou remember Sicily? As you explore villanelles, look at these poems as well. â€Å"Villanelle of Change† by Edwin Arlington Robinson (1891)â€Å"The House on the Hill† by Edwin Arlington Robinson (1894)â€Å"Pan: a Double Villanelle† by Oscar Wilde (1913)Stephen Daedalus’ â€Å"Villanelle of the Temptress† by James Joyce (from A Portrait of the Artist as a Young Man, 1915)

Effects of Cancer on People Essay - 883 Words

Effects of Cancer on People Cancer is a deadly disease that has some very serious effects on a person both physically and mentally. Cancer can result in a simple surgery that may take only a couple days, or a life-long struggle that leaves someone so fatigued and tired that it makes them want to give up. It will put fear in anyones eyes and will devastate even the strongest of people, but cancer can bring out the courageousness in a person to fight this disease and not give up. It can be a fatal disease but it can also bring out the strength in someone which is an amazing thing. Cancer has many serious effects on a persons body and their mental health and others, but can also inspire a person to dig deep and fight this disease†¦show more content†¦Another reaction that makes a person feel sick is something called radiation sickness and consists of feeling tiredness, nausea, lack of appetite and most of the time vomiting, depression and fatigue (Winter 22). Although this treatment is very harsh, i t does have an overall effective means of eliminating the cancerous cells and returning the patient to how they were before. If anything, this treatment brings out the strength and courage a person has to fight this horrible disease and continue on living a normal life once again. Cancer has one of the biggest effects on the patients mental health but also the patients loved ones and friends. It is one of the hardest things to get a grip on when the doctor tells someone that they have cancer and a fifty-fifty chance of making it. The disease can bring many changes-in what people do and how they look, in how they feel and what they value (Dakota 4). It makes people look at the world and their lives in a different way, valuing now what they took for granted and seeing the bigger picture in every scenario. It is something that no one can actually brace, even after the doctor tells them. 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Locke And Rousseau (1492 words) Essay Example For Students

Locke And Rousseau (1492 words) Essay Locke And RousseauThe idea of consent is a key element in the works of John Locke and Jean-JacquesRousseau. In the Second Treatise of Government, Locke puts forth hisconception of the ideal form of government based on a social contract. As Lockedevelops his theory of consent, he also incorporates theories of politicalobligation on the part of all citizens of his state as well as his theory ofrevolution and the conditions under which rebellion is permissible. Though Lockemay appear to have explored the notion of consent completely, there are someproblems with his theory that weaken its impact. Despite the possible problemsencountered with Lockes idea of consent in a political society, Rousseau, inhis essay On the Social Contract, seems to agree with Locke with regardsto the concept of consent as it applies to the use of money. The works of Lockeand Rousseau explore political foundations that depend on a social contractwhich requires consent above all things in order to secure liberty for thepeople. John Locke powerfully details the benefits of consent as a principleelement of government, guaranteed by a social contract. Locke believes in theestablishment of a social compact among people of a society that is unique inits ability to eliminate the state of nature. Locke feels the contract must endthe state of nature agreeably because in the state of nature every one hasexecutive power of the law of nature(742). This is a problem because men arethen partial to their own cases and those of their friends and may becomevindictive in punishments of enemies. Therefore, Locke maintains that agovernment must be established with the consent of all that will restrain thepartiality and violence of men(744). People must agree to remove themselvesfrom the punishing and judging processes and create impartiality in a governmentso that the true equality of men can be preserved. Without this unanimousconsent to government as holder of executive power, men who attempt to establishab solute power will throw society into a state of war(745). The importance offreedom and security to man is the reason he gives consent to the government. Hethen protects himself from any one partial body from getting power over him. Hecan appeal to a higher authority in his community once the consent of the peoplesets up a judiciary(746). As Locke develops his theory of consent, he addressesthe issue of liberty and states that in giving consent, men do give up theirnatural liberty, which involves being free from the will of any man andliving by the law of nature. However, in the social contract we exchange thisnatural liberty for freedom of men under government, in which we have anatural, standing rule to live by, common to everyone, made by thelegislative(747). With consent to government, men still have the liberty tofollow their own will in matters where the law does not dictate otherwise. Therefore, men do not have to suffer enslavement to political institutions. ForLocke, this justifies consent to government and ordered society. Lockeincorporates his views on money into his consent theory, for he feels that menhave agreed tacitly, with the invention of money, to put a value on property andestablish rights to it(751). The consent of men to place a value on money hasallowed men to support themselves with property and labor and alsoincrease the common stock of mankind(751). Consent makes industry andthe accumulation of the wealth of society possible and Locke considers this apositive achievement. Involved deeply in the theory of consent is Lockesinterpretation of political obligation. Locke views government as essential tothe evolution of a civil society in which the inconveniences of the state ofnature are rejected while the safety and security men desire are protected bygovernment. Therefore, the people, as part of the social contract, have a dutyto obey the laws inst ituted by government and to accept the concept of majorityrule as fundamental to the continued equality of the society. In consenting topolitical authority, men agree to allow the body with the greater force toinfluence policy(769). Men must have confidence in the proper functioning ofgovernment because they rely on the social compact. Their obligation is to abideby the terms of the compact so that both people and government enjoy smoothsailing. Locke also explores the idea of revolution and insists that the peoplewho have created government with unanimous consent in order to preserve theirproperty and safety should not be betrayed by the very institutions they gavebirth to. So Locke states that if any of the three powers in government make amove to take away and destroy the property of the people, or to reduce themto slavery under arbitrary power then the people are no longer expected toobey the political authority(807). If the government is guilty of a breach oftrust they forfeit the power(807). Locke believes that giving the people theoption to rebel does not provoke frequent uprising against government. On thecontrary, this option being open is a protective measure and keeps things inorder, for the people will realize there is a way out if the government ceasesto represent their interests. It is, in a sense, a safety valve for the peopleand gives them the reassurance of having some control over governmentsactions. Lockes theory of consent encounters some minor problems. One of thepossible problems regards the propertyless person. For a man who has nopossessions, the desire for protection of property that motivates men to consentto government is nonexistent. He has no reason to want government and so will bebeyond the reach of political authority. Such a person, Locke maintains, issubject to despotical power(794). Also, Locke feels that anyone who enjoys theprivileges of government, like driving on the roads, gives tacit consent togovernment(777). However, many people are not conscious of the fact that drivingon the roads is giving consent to government. The education of exactly what isand what is not consent to government is an issue Locke does not address. Histheory of consent is weakened by the fact that many may not be as aware of theirconsent to government as he believes. With regards to revolution, it can be saidthat Locke views rebellion as a way to reinstate political rights violated by anunjust sovereign. He states that once the government has breached the trust ofthe citizenry, the people have a right to resume their original liberty, and,by the establishment of a new legislativeprovide for their own safety andsecurity(807). The peoples duty is to subvert the authority that is nolonger functioning in a just manner, a manner appropriate to its creation, andto assert their rights as stipulated by the social contract by forming a newgovernment. It is simply a starting over for the society, but no power hasreally changed hands, except on a very temporary basis. The people take powerlong enough to build a new legislative and then relinquish power to the newgovernment. Revolution ensures that malfunctioning government does not dissolvethe political rights of a society. Jean-Jacques Rousseau develops his politicaltheory in response to the contention of Locke that his idea of government is theideal. Rousseau believes in a much higher level of political participation andobligation, but for the most part concurs with Locke regarding the role ofconsent in establishing government. Rousseau would definitely agree with Lockethat men give their mutual consent to money as a store of value in a society. .u5cc07f0827634069a49ecceff15822db , .u5cc07f0827634069a49ecceff15822db .postImageUrl , .u5cc07f0827634069a49ecceff15822db .centered-text-area { min-height: 80px; position: relative; } .u5cc07f0827634069a49ecceff15822db , .u5cc07f0827634069a49ecceff15822db:hover , .u5cc07f0827634069a49ecceff15822db:visited , .u5cc07f0827634069a49ecceff15822db:active { border:0!important; } .u5cc07f0827634069a49ecceff15822db .clearfix:after { content: ""; display: table; clear: both; } .u5cc07f0827634069a49ecceff15822db { 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; } .u5cc07f0827634069a49ecceff15822db:active , .u5cc07f0827634069a49ecceff15822db:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u5cc07f0827634069a49ecceff15822db .centered-text-area { width: 100%; position: relative ; } .u5cc07f0827634069a49ecceff15822db .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u5cc07f0827634069a49ecceff15822db .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u5cc07f0827634069a49ecceff15822db .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; } .u5cc07f0827634069a49ecceff15822db:hover .ctaButton { background-color: #34495E!important; } .u5cc07f0827634069a49ecceff15822db .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u5cc07f0827634069a49ecceff15822db .u5cc07f0827634069a49ecceff15822db-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u5cc07f0827634069a49ecceff15822db:after { content: ""; display: block; clear: both; } READ: The Bahamas After Independence Sample EssayRousseau feels that the social compact, as it secures the consent of all, willbenefit every man equally and protect his property. The general will of thepeople can direct the forces of the state to ensure the common goodis served(919). As money is the element that allows men to acquire wealth andprovide for their families, money would certainly be welcomed by the people,with their consent to its value, as serving the common good. Rousseau wouldcontend that if money existed as a store of value, it could be so only with thefull consent of the people. The general will only acts to serve its own needs ina positive way(920). Therefore, money would be accepted as benefiting society,as Locke maintains. The works of Locke and Rousseau expand the idea of consentas the pathway to government that serves the people at all times and can berecalled and challenged by the populace if it fails to obey the terms of thesocial contract. Even if Lockes ideas are only a compilation of ideasswimming around in the philosophical pool in his time, his confidence in theirability to establish a secure, positive political and civil society influencedour founding fathers as they worked to design government. His theory of consentand Rousseaus expansion on it in his works emphasize how essential it is forboth people and government to be held by certain standards so that everyone issatisfied. In reading Locke and Rousseau, a reader is compelled to compare thetheories of these philosophers with the political reality today. Though theirperception of the ideal government differs, the impact of their work combinedcan be clearly realized. BibliographyLocke, John. Second Treatise of Government. Rousseau,Jean-Jacques. On the Social Contract.

Rocket ISU Essay Example

Rocket ISU Essay Rocket ISU Lab Report Abstract What are rockets? How did they come to our existence? What are the main principles behind rockets? What is the history of rockets? How is the mass of the rocket related to its Fnet, Acceleration, Max Height, etc. This lab report gives a brief explanation of the physics behind this innovative man-made invention. This lab goes through the basic principles of rocketry. The lab explores how rockets became more sophisticated over the years. This report discusses about the things to keep in mind while building a small and simple rocket. This report is the best example for a person who is nterested in the field of rocketry. Table of Contents Title Page 1 Table of Contents 2 Principles of Rocketry 3 Rocket Design Strategy .. 7 Purpose 9 Materials 9 Observations 10 Calculations Trial . 11 Calculations Trial #2 14 Error .. 17 .. 19 Bibliography. . 20 Principles of Rocketry imagine their Joy. However, today, even an infant can fully live by the virtue of advances in aeronautics, man has disproved that sky is the limit. Rockets and paceships have helped him to redefine the concept of flying. In todays world, the concept of rockets exists because of Sir Isaac Newton, a pioneer in the field of physics whose three laws of motion enabled scientists in todays date to build rockets accurately. In simple words, a rocket is a chamber enclosing a gas under pressure. A balloon is a most common example. Newtons first law states that, objects at rest will remain at rest and objects in motion will remain in motion in a straight line unless acted upon by an unbalanced force. We will write a custom essay sample on Rocket ISU specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Rocket ISU specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Rocket ISU specifically for you FOR ONLY $16.38 $13.9/page Hire Writer To begin with, when the rocket is at rest all the forces are equal. The force of gravity on the rocket equals with that of the pad that is holding on it. While in motion, the rocket unbalances the forces and as a result, it travels upward. Newtons second law states that, force equals mass times acceleration. The mass of the rocket changes during the flight, since the engines energy is being used up rapidly so the rocket weighs less and accelerates. The third law states that, every action has an equal and opposite reaction. As the rocket takes off and releases the gas out, the gas pushes the rocket upwards. The design of the rocket also plays an important role. To begin with, inertia, the tendency of an object to resist change while in motion is directly connected to the mass of the object. A heavier rocket will have more inertia, because it has more mass. This will in turn give the rocket more resistance. The rocket will be therefore able to surpass the wind. On the other hand, a lighter rocket will have less inertia since the mass of the rocket is less. As a result, rocket will have less resistance and the effect of the wind on the rocket will be great. Another factor that is associated with the design of the rocket is the center of the mass. The center of the object is the exact point where all of the mass of the rocket is exactly balanced. Everything is made up of matter, regardless of size, mass, or shape has a center of mass. An unstable rocket tumbles around this point. Revolving and sinking takes place around one or more of three axes: roll, pitch, and yaw. Another aspect that is lined with the design of the rocket is the center of pressure. Center of pressure is the location where all the pressure forces acting on a rocket are balanced. Center of pressure exists only when the rocket is going in the opposite direction to the wind. The center of the pressure is located near the tail and center of mass is located near the nose of the rocket. Todays rockets are an extraordinary work of human beings who have their roots in science and technology of the past. The discovery or the invention of the rocket came in existence way before Newtons Laws were ever stated. Around 400 B. C. , in southern Italy, Archytas amazed the people of the town by flying a wooden pigeon. The pigeon used steam as a propulsive gas and used the action-reaction principle, which was not stated as a law until 17th century. rocket as a weapon. They used bamboo tubes filled with gunpowder and tossed them in fire. Soon, they started experimenting and fgured out a way. They used the bamboo tube filled with gunpowder and attached it to an arrow and discovered that these gunpowder tubes could launch themselves Just by the power produced from the escaping gas. This is how they technology of rocket started. As the time passed by, Newtons theories and his three laws came into existence. His laws explained that why rockets are able to work in vacuum as well as in the outer space. Soon after that, gas laws were developed. Charles law stated that, at a onstant pressure, the volume of a fixed mass of any gas is directly proportional to its Kelvin temperature. The concept of hot balloons comes from this principle. As the balloon is heated, the volume of the balloon also increases. Since the volume is increases, the density inside the balloon also increases. The density of the air is more than the density of air that is in the balloon. This is the reason hot balloons were able to fly back in 17th century. During late 1800s and early 1900s, rockets were mainly used as a weapon to be used in the battles. William Congreve, a British Colonel designed various patterns for ockets to be used in warfare. His rockets were so successful that scientists around the around started experimenting on the rockets. William Hale, an English scientist soon came up with an excellent technique known as spin stabilization. This technique made the gases of the rocket to escape from the bottom, thus making it to spin in a bullet like fashion. Modern rocketry began in 1898, when a Russian schoolteacher named Konstantin Tsiolkovsky, proposed the idea of space exploration. It was also his suggestion of using liquid propellants in the rockets in order to achieve greater range. Since, Tsiolkovsky was the first person to suggest space exploration and the fact that he came up with other ideas and theories in the work of physics, he is known as the father of modern astronautics. Soon after the concept of propellants was introduced, an American, Robert H. Goddard started conducting practical experiments. He started working with the solid- propellant rockets. Sooner he was convinced that liquid-propellant rockets were better than the solid-propellant rockets. But at time constructing liquid-propellant rockets was much harder, since, fuel and oxygen tanks, various gas chambers and urbines were needed. After so many difficulties and hardships, Goddard was finally able to built a liquid-propellant rocket and achieved a height of 12. 5 meters. His rocket was a pioneer in the rocketry field. Due to his magnificent contributions in the field of rocketry, he is known as the father of modern rocketry. Later on, during the time of Cold war between the two superpower nations, Unites States and Soviet Union, they entered the space fght. Soviet Union was able to put a stop on America by launching the first satellite in the world called Sputnik on October 4th, 1957. After a few months, on January 31st 1958, United States launched their own satellite called Explorer l. Around that time, America organized their space program by creating NASA. It became a space agency with the intensions of exploring space for the betterment of humans. ountries. Space exploration became more advanced and rapidly increased after 1980. In 1981, Robert Crippen and John Young rotated around the Earth 36 times in a total of 54 hours. In 1983, Pioneer 10 (USA) crossed the orbit of the outermost planet, Neptune. In 1985, first satellite landed on the surface of a comet. To conclude with, in odays date, rockets are complicated structure that can go far and beyond human imaginations. The technology to build a rock et always existed, it was Just a matter of time when Archytas came up with idea. In todays date, rockets have reached a height of accuracy and this is because of Sir Isaac Newton. His laws and theories have helped the engineers to build marvelous rockets that can not only go outside the earths atmosphere but can also reach even the farthest planets that exist. Rocket Design Strategy While designing a rocket four main things are kept in mind, the nose cone, the fins, a arachute, and mass of the rocket. These four things are the building blocks of a rocket. Therefore, to achieve the maximum height possible, these things are the first ones that are kept in consideration. Nose cones can be engineered in three different shapes. They are either: parabolic, ogive or conical. They all one thing in common, they all have pointed peaks. The reason they have pointed nose is the basic physics fundamentals of aerodynamics. Parabolic shape nose cones are the best to use. The parabolic shape cone is pointy at the top and gets wider like triangle. When air ushes the rocket down, the cone shape affects the rocket the most. Since, parabolic shape advantages the rocket because all the air that strikes the rocket is slanted through the pointy peak and that pyramid shape. If the nose cone is flat it will conduct huge amount of drag or air resistance. Drag means the force of friction that is pulling the rocket downwards. To avoid this frictional force, the thrust of the engine should be more than the drag that is acting on the rocket. Nose cones are not the only thing that is important while constructing a rocket. The length of the rocket lso plays a huge role. If the length of the rocket is too long then the cones will be useless. On the other hand, if the length of the rocket is too small that will also not benefit the rocket. The length of the rocket should be ideal and circumstances should be taken in consideration. The reason behind the structure of the nose cone is cylindrical in shape is because that way the friction that is caused on the rocket by the wind will be reduced. Another part that helps the rocket to stay stable is the fins. Without the fins rocket will not go upwards properly and will not be able to fly. Fins are designed in order to itself up while still in motion. This theory can be proved by Newtons third law of motion, which states that, every action has an equal and opposite reaction. In this case, the drag and gravity are pulling the rocket downwards and the fins are pushing it upwards. Several fins follow the same design structure. They are wider at the top and pointier at the bottom. The reason they are more sharp at the bottom is so that they can cut through the air while they are still in the motion. There are mainly four fin shapes: square, trapezoid, triangle, and epsilon. Triangular or and epsilon fin would be ideal for a rocket since it create less drag. Furthermore, a parachute is needed to land the rocket safely. However, adding a parachute to the rocket adds more mass, which will eventually affect the rocket to reach the maximum height possible. Therefore, keeping the rocket light weighted in the beginning and keeping in consideration about the mass at all times does not affects the rocket later on . The reason mass is kept into consideration is because as the mass of the rocket increases the gravitational force acting on it also increases, Fg = mg. In addition to that, another thing to keep in consideration while building a rocket is that it should survive the harshest and most extreme conditions possible. Keeping the rocket fireproof, by adding a piece of tissue between the parachute and the engine would stop the heat from the engine to reach to the parachute when the rocket is still in motion. To conclude with, rockets are really hard to engineer as each concept is kept in mind while constructing them. Every little thing attached to a rocket affects it directly or indirectly. When rockets are in space, anything can go wrong, so the engineers lways have a backup safety plan for the astronauts safety. A rocket engineer is one of the hardest professions, since so many factors are kept in consideration and much thinking is required. Purpose This lab had various purposes. However, the main reason we did this lab was to achieve the maximum height possible with limited material provided. Another purpose of this investigation was to apply our knowledge regarding Newtons three laws of motion since the amount of air resistance was present. An additional purpose would be to determine the relationship between the mass of the rocket to ts: Acceleration, Ek, Eg, Fg, Fnet, etc. Another reason this lab was conducted was to observe, how things are affected on this planet while they are still in motion and are above earths surface. The overall purpose of this lab was to combine all the knowledge from the previous units and to build a rocket that could reach maximum height possible. Materials Material needed to construct rocket: 1 Main Body Tube 1 Balsa Wood 1 Engine Tube 2 Engine Center Rings 1 Engine Thrust Ring 1 Parachute sheet 6 Parachute Reinforcement Rings 1 Shock Cord 1 Launch Lug 1 Metal Engine Hook Super Glue/ Carpenters glue Ruler Scissors Sandpaper Decoration Utensils Shock Cord Mount For launching the rocket: Launch Pad Igniters B 6-4 Engine Recovery Wadding (1-4) Observations: Trial Mass (full) Mass (empty) Mass (average) Angles of Inclination Time Average Height of Inclinometer Readers Rocket Mass + Full Engine Mass; 0. 0499kg + 0. 01748kg = 0. 06738kg Rocket Mass + Empty Engine Mass; 0. 0499kg + 0. 009747kg = 0. 059647kg Massl + Mass2/2; 0. 06738 + 0. 059647 / 2 -0. 0635135kg The angles were: 590 540 The time was: 3. 06 seconds 1. 75 1. 73m 12=1. 74 rn Rocket Mass + Full Engine Mass; 0. 0499kg + 0. 01748kg = 0. 06738kg Rocket Mass + The angles were: 560 600 The time was: 3. 59 seconds Calculations 1. Maximum Height Using Trig Ratios: For left triangle, tan 59 = P 50 P-83. 21 m Therefore, the height of the left triangle = 83. 21 +1. 75 = 84. 96 m For right Triangle, Tan 54 = p P = 68. 82 m Therefore, the height of the right triangle = 68. 82 + 1. 73 = 70. 55 m Using the formula provided: H = c sin Asin B sin C H = (Sin 59) (stn54) 67 75. 34 m Therefore, the height of the triangle Average of all three heights: 83. 21 +68. 82 + 77. 3 = 76. 37 m 2. Fg (Force of Gravity) = 75. 34 + 1. 74 = 77. 08m Mass of 1 full engine: 17. 48g = 0. 01748kg Mass of 1 empty engine: 9. 747g = 0. 009747kg Mass of rocket: 49. 9g = 0. 0499kg Fg(full engine) = mg = (0. 04999 + 0. 01748) (9. 8) = 0. 660324 N Fg(empty engine) = mg = 0. 5845406 N Fg(average) 2 Fg(full engine) + Fg(empty engine) Fqaverage) = 0. 660324 +0. 5845406 Fqaverage) = 0. 6224323 N 3. Fo rce of thrust of engine: The thrust of the engine is 6 N, according to Estes: (graph shown): 4. Acceleration: Ad = At + h aav (At)2 (3. 061) + h (aav) (3. 061)2 152. 74 = 9. 9721 aav Fnet (Resultant Force): Mup = 0. 0499kg + 0. 01748kg Mdown = 0. 0499kg + 0. 009747kg Mdown = 0. 059647kg Mass(average) = 0. 06738 + 0. 059647 Mass(average) = 0. 0635135kg Fnet = ma Fnet= 1. 036 N 6. Force of Friction: Fnet = (Fg + Ff) 1. 036 = 6 (0. 6224323+ Ff) 1. 036 = 6 0. 6224323- Ff Ff=6 0. 6224323- 1. 036 4. 3415677 N 7. Gravitational Potential Energy: Eg = mgh 76. 37 = (0) 76. 37 = h aav (9. 369721) aav= 16. 31 mm 5. Mup = 0. 06738kg Fnet = (0. 0635135) (16. 31) Eg = (0. 0635135) (9. 8) (76. 37) 8. Kinetic Energy: Vf2 = + 2aav Ad Vf2 = + 2(16. 31) (76. 37) Vf2 = 2491. 1894 Vf=49. 91 rms h mv2 Ek = h (0. 0635135) (49. 91)2 Ek=79. 112J 9. Maximum Velocity: h rnv2 mgh = h mv2 vmax = vmax = 27. 36 m/s tan 56 = p P=74. 13rn = 74. 13+ 1. 75 = 75. 88 m tan 60 = p P = 86. 60 m = 86. 60+ 1. 73 = 88. 33 m sin 64 79. 88 m = 79. 88+ 1. 74 = 81 . 62 75. 88+ 88. 33 + 81 . 62 = 81. 94 m = (0. 0499 + 0. 009747) (9. 8) Fg(average) = Fg(full engine) + Fg(empty engine) Fg(average) = 0. 660324 +0. 5845406 (3. 5913) + h (aav) (3. 5913)2 163. 88 = 12. 89743aav 5. Fnet (Resultant Force): 81. 94 = (0) 81. 94 = h aav (12. 89743) aav = 12. 7064 mm = 0. 06738kg Mup