Nutrition and Body Essay Example for Free

Nutrition and Body Essay All macromolecules are essential to the body. One has to have the right amount of all of the macromolecules in order to be healthy. It is believed that high protein diets with carbohydrate restriction causes weight loss. However as a result of high protein diet, one damages his/her kidney which is responsible for filtering proteins from blood. In the article, Janine says, â€Å"If you eat too much proteins and not enough carbs you can ruin your kidneys forever.† I agree with Janine, one has to have enough carbohydrates. Carbohydrates are important in the body as they provide energy for short term storage. However if one does not have enough carbohydrates in his/her diet, it affects the brain. Glucose from carbs is the fuel that brain uses to produce energy that moves and motivates one therefore one has to have glucose in the body. Mitchell has this misunderstanding about carbs and fat. Mitchell thinks that if one cuts down on carbs, he/she is actually training the body to burn fat instead. Fats and carbohydrates are two different things. If one is gaining weight, that’s because of calories. The amount of calories one takes causes obesity. Obesity is linked with poor body image. A positive body image is maintained by eating foods that contain fewer calories in it. A person’s weight is affected by genetic inheritance, nutrition and physical activity. Perceived body size is affected by media, puberty, and peer groups. All these factors affect body weight and perceived body size. Metabolism refers to all chemical processes that go on continuously inside the body. The amount of kilojoules your body burns at any given time is affected by your metabolism. Thyroid gland located below the larynx produces thyroid hormone which controls metabolism, growth, body temperature, muscle strength and appetite. Homeostasis is the process used by the body to maintain a stable internal environment. Hormonal regulation of metabolism such as when blood sugar levels rise in the body, insulin is secreted by the pancreas to covert glucose into glycogen, and when sugar levels in blood fall, glucagon is secreted by the pancreas to convert glycogen into glucose. If people have high blood sugar, they get diabetes. If people have low blood sugars, they get headaches, hunger, pale skin etc. Maintaining a normal blood sugar level is very important in the body. In the article, Mitchell says, â€Å"I get pretty hungry and I was getting headaches.† I think it’s because of having low blood sugar level. Mitchell has high  insulin and less glucagon hormone in the body. The advice I would give to Mitchell is to stop dieting and eat healthy foods that contain fewer calories. Mitchell needs to have physical exercises, healthy foods and self-concept.

AASB Accounting :: essays research papers

Apply AASB 1001 to Report:   Ã‚  Ã‚  Ã‚  Ã‚  The Financial Report 2004 of Coles Myer Ltd has proven that the company has obliged the Standard of AASB 1001 Accounting Policies.   Ã‚  Ã‚  Ã‚  Ã‚  The report has satisfied relevance by Relevant financial information assisting users in making and evaluating decisions about the allocation of scarce resources(Statement of Financial Position-profit or loss). It assists them in making predictions about future situations and in forming expectations, or it plays a confirmatory role in respect of their past evaluations Financial information may be relevant because of its nature, itsnature and magnitude, or because of its magnitude in relation to its nature. Additional guidance on relevance is provided in SAC 3.   Ã‚  Ã‚  Ã‚  Ã‚  The financial report has reliable financial information which faithfully conveys to users theunderlying transactions and other events that have occurred. For financial information to be reliable, it needs to be free from bias. Reliable financial information does not lead users to conclusions that serve particular needs, desires or preconceptions of the preparers of financial reports.This is see on the last page of the report where it has been signed by accountants and the AASB representatives.   Ã‚  Ã‚  Ã‚  Ã‚  This financial report is able to compare aspects of an entity over time and compare aspects between entities at one time and over time. This implies that the recognition, measurement and presentation of transactions or other events need to be carried out in a consistent manner throughout an entity and over time for that entity, and that there needs to be consistency between entities in these regards. However, consistency should not impede the introduction of improved financial reporting. It is not acceptable for an entity to retain its accounting policies to the detriment of the concepts of relevance and reliability. Additional guidance on comparability is provided in SAC 3.   Ã‚  Ã‚  Ã‚  Ã‚  The financial report of Coles Myer shows that it is on a going concern basis due to the Statement if Financial Performance by viewing the Revenues inflow and Expenses outflow and coming to a profit at the end of the financial year.   Ã‚  Ã‚  Ã‚  Ã‚  The accrual basis recognises the financial effects of transactions or other events in the financial years in which they occur, to the extent that those financial effects can be recognised, irrespective of whether cash has been received or paid. Accrual accounting provides information about assets, liabilities, equity, revenues and expenses, and changes in them, that cannot be obtained by accounting only for cash receipts and payments.

Danielle Steeles Daddy and Norman Macleans A River Runs Through it :: essays research papers

The two books Daddy by Danielle Steele and A River Runs Through It by Norman Maclean are both stories where the main characters are male. The books deal with how a man reacts when he is presented with different situations. Oliver, the main character from Daddy, and Norman the main character from A River Runs Through It, are both presented with different situations that bring out their prevailing qualities. The two men have both similar and different traits. The time periods and society that they live in have totally shaped the way Norman and Oliver react when presented with certain qualities however they still have the same masculine traits. The time period in witch both men are accustomed to are very different. Norman lives in the early 1900’s when it was still the time of men had their place working and women had their place in the kitchen. While Oliver is in the time setting of around the late 1980’s to the early 1990’s in a time when women are equal to men. The time periods that the two characters live in have changed their personalities. If they were to switch places they would more than likely have reversed personalities. Norman is living in the early 1900’s when the man was expected to be the strong one in the any situation. Norman does this stereotype justice he is in his early to mid 20’s and an upstanding citizen. Norman is faced with the problem of facing his brother’s death. His brother’s death is not a situation that is confined to this time period it is just handled differently because of this time period. Norman handles the situation by not mentioning it very often and acting like it didn’t happen. Whereas if Norman was living in a more modern time period he may be more apt to talking about his brother’s death Oliver is a middle aged advertisement agent in the 1990’s, a time when men are not depended on so much to be the tough guy and people are more open-minded to the different things. Oliver is presented with a lot of the problems that are common to the 90’s. He is also a very decent guy that is presented with some of the hardships of life, but unlike Norman Oliver is not ashamed of his problems because they are more acceptable in the time that he is living. Danielle Steele's Daddy and Norman Maclean's A River Runs Through it :: essays research papers The two books Daddy by Danielle Steele and A River Runs Through It by Norman Maclean are both stories where the main characters are male. The books deal with how a man reacts when he is presented with different situations. Oliver, the main character from Daddy, and Norman the main character from A River Runs Through It, are both presented with different situations that bring out their prevailing qualities. The two men have both similar and different traits. The time periods and society that they live in have totally shaped the way Norman and Oliver react when presented with certain qualities however they still have the same masculine traits. The time period in witch both men are accustomed to are very different. Norman lives in the early 1900’s when it was still the time of men had their place working and women had their place in the kitchen. While Oliver is in the time setting of around the late 1980’s to the early 1990’s in a time when women are equal to men. The time periods that the two characters live in have changed their personalities. If they were to switch places they would more than likely have reversed personalities. Norman is living in the early 1900’s when the man was expected to be the strong one in the any situation. Norman does this stereotype justice he is in his early to mid 20’s and an upstanding citizen. Norman is faced with the problem of facing his brother’s death. His brother’s death is not a situation that is confined to this time period it is just handled differently because of this time period. Norman handles the situation by not mentioning it very often and acting like it didn’t happen. Whereas if Norman was living in a more modern time period he may be more apt to talking about his brother’s death Oliver is a middle aged advertisement agent in the 1990’s, a time when men are not depended on so much to be the tough guy and people are more open-minded to the different things. Oliver is presented with a lot of the problems that are common to the 90’s. He is also a very decent guy that is presented with some of the hardships of life, but unlike Norman Oliver is not ashamed of his problems because they are more acceptable in the time that he is living.

Antigone vs. Creon

In the tragedy of Antigone by Sophocles, Antigone, the main protagonist, is conflicted whether or not to bury her dead brother and go against Creon's law or follow Creon's law. Creon is the main antagonist in this story and punishes Antigone for breaking his law and burying Polynieces. Though they are two different characters, Creon and Antigone could both qualify as the tragic hero because they are both responsible for their own fate, endowed with a tragic flaw and falls from high esteem.In the story, Antigone and Creon are responsible for their own fate, seeing as it's their actions that cause them to be a tragic hero. Antigone knows about Creon's law not bury Polynieces, yet she'd rather go against Creon than the Gods. She did what she thinks is correct but Creon is furious and sends her to a stone grave. Antigone knows what the consequences would be, â€Å"[her] death is the doing of [her] own conscious hand† (‘v. 46). She wouldn't be dead if she didn't bury Polyniec es and follow Creon's law.She chooses to go against him and that seals her fate. Creon, on the other hand, hooses to be stubborn and punish Antigone for breaking his crime. He couldn't bear to seem weak to the citizens of Thebes. It was Antigone's punishment, â€Å"if she lives or dies/That's her affair† (‘v. 55-56). Even if it means sending his own, soon to be daughter in law, to her death. Creon let his pride control his actions and that causes him to lose his wife and his last son. Both, Antigone and Creon could avoid their tragic endings but their flaws cause their ultimate downfall.The tragic flaw endowed in both these characters is pride, one refusing to admit what she did was wrong and another refusing to listen to others. Antigone not only goes against Creon's law but she boasts about it. She refuses to admit she is wrong, saying that Creon's law â€Å"[is] not God's proclamation. That final Justice/ That rules the world below makes no such laws† 57-58). She stands for what she believes in and that makes Creon angry. Though Antigone did follow the law of the Gods, it did not stop Creon from punishing her for breaking his laws.Similarly, Creon's hubris causes him to lose everything too. Haemon had come to him saying that a good king listens to other people's opinions and â€Å"[Doesn't] believe that [he] alone can be right† (iii. 74) ut he doesn't listen. Then Teiresias comes and tries to convince Creon to fix everything, for the Gods are angry and it's his fault. He finally comes to his senses and tries to right his wrongs by mimicking a proper burial for Polynieces and freeing Antigone from her grave, but he is too late.Creon loses his entire family for Haemon kills himself in grief for Antigone and Eurydice takes her life in grief for the loss of both her sons. Everything was going well in their lives until pride gets in the way and ruins the life they once had. Antigone and Creon had a pretty good life in the beginning, se eing as Antigone is etting married and Creon is ruling as king of Thebes, but all that deteriorates once they are forced to face the consequences of their actions. Antigone is already that Polynieces isn't going to be buried and Eteocles is, makes it worse.She chooses to get involved and ends up with her â€Å"[making] a noose of her fine linen veil/And [hanging] herself† because she'd rather die for what she believes in than what someone tells her to believe in (Exo. 59-60). She couldVe left it alone and let Polynieces rot in the field and go about her life to marry Haemon, yet she chooses to risk her life and when the time comes, accepts her death with honor. At the same time, Creon has also let his life go to waste because he already lost one son in the war, he saw another take his life in front of him and comes back home to find his wife had taken her life as well.All Creon wants to do is to die because â€Å"[his] comfort lies here dead. mhatever [his] hands have touche d has come to nothing† (Exo. 136-137). Creon went from being King of Thebes, with a family at home, to Just Creon, who became a victim of the Gods and fate. Although he didn't die, he accepts the fact that he was too late to fix everything and asks to be led away, for his entire family is dead because of him. Most readers would immediately argue that Sophocles chose Antigone as the tragic hero since the story is called Tragedy of Antigone.Although this is true, according to Greek terms of a tragic hero, Creon, to an extent, could also qualify as the tragic hero. Antigone and Creon had two different roles in this story, but in the end they are both the tragic hero because theyre responsible for their own fate, possess a tragic flaw and they fall from high esteem. Antigone vs. Creon In the tragedy of Antigone by Sophocles, Antigone, the main protagonist, is conflicted whether or not to bury her dead brother and go against Creon's law or follow Creon's law. Creon is the main antagonist in this story and punishes Antigone for breaking his law and burying Polynieces. Though they are two different characters, Creon and Antigone could both qualify as the tragic hero because they are both responsible for their own fate, endowed with a tragic flaw and falls from high esteem.In the story, Antigone and Creon are responsible for their own fate, seeing as it's their actions that cause them to be a tragic hero. Antigone knows about Creon's law not bury Polynieces, yet she'd rather go against Creon than the Gods. She did what she thinks is correct but Creon is furious and sends her to a stone grave. Antigone knows what the consequences would be, â€Å"[her] death is the doing of [her] own conscious hand† (‘v. 46). She wouldn't be dead if she didn't bury Polyniec es and follow Creon's law.She chooses to go against him and that seals her fate. Creon, on the other hand, hooses to be stubborn and punish Antigone for breaking his crime. He couldn't bear to seem weak to the citizens of Thebes. It was Antigone's punishment, â€Å"if she lives or dies/That's her affair† (‘v. 55-56). Even if it means sending his own, soon to be daughter in law, to her death. Creon let his pride control his actions and that causes him to lose his wife and his last son. Both, Antigone and Creon could avoid their tragic endings but their flaws cause their ultimate downfall.The tragic flaw endowed in both these characters is pride, one refusing to admit what she did was wrong and another refusing to listen to others. Antigone not only goes against Creon's law but she boasts about it. She refuses to admit she is wrong, saying that Creon's law â€Å"[is] not God's proclamation. That final Justice/ That rules the world below makes no such laws† 57-58). She stands for what she believes in and that makes Creon angry. Though Antigone did follow the law of the Gods, it did not stop Creon from punishing her for breaking his laws.Similarly, Creon's hubris causes him to lose everything too. Haemon had come to him saying that a good king listens to other people's opinions and â€Å"[Doesn't] believe that [he] alone can be right† (iii. 74) ut he doesn't listen. Then Teiresias comes and tries to convince Creon to fix everything, for the Gods are angry and it's his fault. He finally comes to his senses and tries to right his wrongs by mimicking a proper burial for Polynieces and freeing Antigone from her grave, but he is too late.Creon loses his entire family for Haemon kills himself in grief for Antigone and Eurydice takes her life in grief for the loss of both her sons. Everything was going well in their lives until pride gets in the way and ruins the life they once had. Antigone and Creon had a pretty good life in the beginning, se eing as Antigone is etting married and Creon is ruling as king of Thebes, but all that deteriorates once they are forced to face the consequences of their actions. Antigone is already that Polynieces isn't going to be buried and Eteocles is, makes it worse.She chooses to get involved and ends up with her â€Å"[making] a noose of her fine linen veil/And [hanging] herself† because she'd rather die for what she believes in than what someone tells her to believe in (Exo. 59-60). She couldVe left it alone and let Polynieces rot in the field and go about her life to marry Haemon, yet she chooses to risk her life and when the time comes, accepts her death with honor. At the same time, Creon has also let his life go to waste because he already lost one son in the war, he saw another take his life in front of him and comes back home to find his wife had taken her life as well.All Creon wants to do is to die because â€Å"[his] comfort lies here dead. mhatever [his] hands have touche d has come to nothing† (Exo. 136-137). Creon went from being King of Thebes, with a family at home, to Just Creon, who became a victim of the Gods and fate. Although he didn't die, he accepts the fact that he was too late to fix everything and asks to be led away, for his entire family is dead because of him. Most readers would immediately argue that Sophocles chose Antigone as the tragic hero since the story is called Tragedy of Antigone.Although this is true, according to Greek terms of a tragic hero, Creon, to an extent, could also qualify as the tragic hero. Antigone and Creon had two different roles in this story, but in the end they are both the tragic hero because theyre responsible for their own fate, possess a tragic flaw and they fall from high esteem.

Lois Lowry essays

Lois Lowry essays ... Now I deal with the frustrations, fears, and disappointments of life by making stories out of them: by examining them, tipping them upside down and inside out arranging them in an order that makes sense, weaving them through with details and holding them up to the light. That is how Lois Lowry comes up with her stories. By taking all her emotions and what everyone deals with in life and also by using some of her childhood memories in writing her stories. Lois Lowry was born on March 20, 1973 in Honolulu, Hawaii. Her parents were Robert E. Hammersberg and Katherine Hammersberg, who was a teacher. Her father was a dentist who was stationed with the army at Pearl Harbor, but before the bombing, the family moved to the mainland in the Amish country of Pennsylvania. The house and town in Pennsylvania where she grew up is used as the setting for one of her books called, Autumn Street. Lois Lowrys intelligence was shown early at the age of three years-old, she learned how to read at the age of three years-old. Lowry attended Brown University through the years 1954 and 1956 but even though she was smart, she dropped out of college early because of the tradition of the fifties to marry early. She married Donald Grey Lowry who was an attorney on June 11, 1956. She gave birth to Alex, Grey, Kristen, and Benjamin. Lowry finally divorced in 1977, where she went back to college at University of Southern Maine where she got her B.A. Although my books deal largely with families, I also attach a great deal of importance to friendships. Those are the things young people should pay attention to in their lives. That is how Lois Lowry get her methods of stories, by an idea that her stories can move and teach younger people and to those who read her stories provide them with strong motivation. She has an ability to explore young readers lives and relationships in w ...

The Epic of Gilgames paper essays

The Epic of Gilgames paper essays What is humanity? As humans what do we strive for and most of all why are we here? Is there really a purpose or explanation on why we are here? In The epic while Gilgamesh ventures on his journey it seems that is seeking to answer all these questions. During Gilgameshs expedition he learns many lessons that help him grow as a person and lets us know a little about the beliefs of the people who lived in the land between the Tigris and the Euphrates rivers in the second and third millenniums BCE. While reading this story we witness Gilgameshs growing up, and his quest to answer questions about humanity, getting older, religion, life, and death. All of these are ideas that we may find evident in the meaning of The Epic, and may help animate the story. In everyones life people experience changes whether they are drastic or diminutive. In addition to experiencing changes in our lives, we age and begin to understand some of the events that occur in our life. These are all aspects of getting older. In The Epic Gilgamesh is going through a time in his life where he is very depressed, does not see why his friend has died, and is not sure whether he will be die shortly. Will you too die as Enkidu did?(IX, 1). Gilgamesh then starts out on his endeavor to try to unearth the answers to his problems. While on his path to talk to Shamash he begins to try to understand reasons of why there is death in the world, and secrets to questions that humans do not know the answers to. I come here to visit my elder Utnapishtim, the epitome of both life everlasting and death that is eternal (IX, 59). His journey is extensive and very tough. Gilgameshs quest helps him grow mentally and spiritually, and by the end of the journey he begins to understand li fe. By the time Gilgamesh is close to reaching his destination he finds out some of the reasons there is death in the world, and why his brother Enkidu has die...

A Briefer History of Time Report

A Briefer History of Time Report Free Online Research Papers At the end of the first chapter, Hawking ends with a thought provoking statement; â€Å"Someday these answers may seem as obvious to us as the Earth orbiting the sun – or perhaps as ridiculous as a tower of turtles. Only time (whatever that may be) will tell.† He illustrates the elusive ambiguity of science – what we are determined to prove true today, we may laugh at tomorrow. In the first two chapters, Stephen Hawking describes what we live in to be a â€Å"strange and wonderful universe,† introducing his topic with contrast to the old fashioned theory of the flat world resting upon a tower of turtles, quoted earlier. What can we really prove, and how can we determine if the theories we have today are legitimate or if they are as ridiculous as a pile of turtles? He brings up and then disproves various past ideas of the world and the galaxy, like the world being flat; if the world was flat, the Greeks had reasoned, you would see a ship to appear first as a dot and then, as it got closer, you would gradually be able to make out more detail. However, the first thing you see are the ship’s sails, and then later you see it’s hull, and â€Å"the fact that a ship’s masts, rising high above the hull, are the first part if the ship to poke up horizon is evidence that the Earth is a ball.† He also introduces Newton’s la ws, his ideas of gravity, and the elliptical orbits of the planets. In the third chapter, Hawking defines the nature of a scientific theory, and the process of abandoning or modifying these theories. He gives us a brief understanding of the general theory of relativity and quantum mechanics, while explaining that the two theories are inconsistent with each other; they cannot both be correct. The fourth chapter, entitled â€Å"Newton’s Universe,† talks about how gravity is proportional to mass. Although an object with twice the weight will have twice as much gravity pulling it down, it will also have twice the mass, thus it will only have half the acceleration per unit force. These two effects cancel each other out; therefore, every object has the same acceleration when falling. Another idea introduced in this chapter was the ambiguity of time and space. Hawking uses the example that if a person were on a train, bouncing a ping-pong ball, it would appear to them as if it was going straight up and down, whereas someone standing besi de the track would see the two bounces as forty meters apart, because the train would have raveled that far down the track between the bounces. In the fifth chapter, the fact that light travels at a very high yet finite speed is explained. Danish astronomer Ole Christensen Roemer observed that the eclipses of Jupiter’s moons were not evenly spaced. If Jupiter remained the same distance from the Earth at all times, the delay would be uniform for every eclipse. Because light has a farther distance to travel when Jupiter moves away from the earth, the light we would normally see is late. In addition, when Jupiter is closer to the earth, and the â€Å"signal† from each eclipse has les distance to travel, it arrives earlier. Ether is defined as a substance present everywhere, even in the vacuum of â€Å"empty† space. It is believed that light waves go through ether as sound waves do through air, and that, although different observers could see light coming toward them at different speeds, the light’s speed relative to the ether remains fixed. Hawking explains that â€Å"we must accept that time is not completely separate from and independent of space but is combined with it to form an object called space-time.† It is understood that position is relative; it is nothing unless compared to something else. In chapter six, a geodesic is explained as the shortest (or longest) distance between two points. The shortest distance between two points on the globe is along a great circle, or a circle around the globe (one of the largest circles you can draw on the globe) whose center coincides with the center of the earth. Therefore, although a straight line would be considered the shortest distance between two points, a curved geodesic is actually the shortest distance between two points on the globe. Some interesting topics in this chapter are the predictions of general relativity. General relativity predicts that gravitational fields should bend light. This means that the light from a distant star that passes near the sun would be deflected, appearing in a different position to someone on the Earth. Another prediction of general relativity is that time should appear to run slower near a massive body, such as the Earth. This prediction was tested in 1962 with a pair of very accurate clocks, mounted to the top and bottom of a water tower. The clock at the bottom was found to run more slowly, in exact agreement with general relativity. Our biological clocks are equally affected by this change in the flow of time. Throughout this chapter, the idea of absolute time was disproved. Chapter seven contains another discovery about the universe, that it is the same in every direction. It also introduces the method of parallax, using the change in relative position to plot locations. It was not possible to use this method for Edwin Hubble because the distances he was trying to find appeared fixed, because they were too far away. Instead, he catalogued the brightness of each star, dependant on the luminosity. The same types of stars have the same luminosity, and the types and luminosities of nearby stars could be determined, so Hubble was able to calculate the distance to that galaxy, eventually working out nine different galaxies. After this, he spent his time tracking where the galaxies were moving to, as most people expected them to be moving around quite randomly. He was surprised to find that every galaxy was moving away from us. This means that the universe could not be static or unchanging in size, rather it is expanding. This can be described by the e xpanding balloon model: â€Å"The situation is rather like a balloon with a number of spots painted on it being steadily blown up. As the balloon expands, the distance between any two spots increases, but there is no spot that can be said to be the center of the expansion. Moreover, as the radius of the balloon steadily increases, the farther apart the spots on the balloon, the faster they will be moving apart. For example, suppose the radius of the balloon doubles in one second. Two spots that were previously one centimeter apart will now e two centimeters apart (as measured along the surface of the balloon.)† In chapter eight, the big bang is explained, using reference to extreme temperatures, like one second after the big bang, when â€Å"the universe would have expanded enough to bring its temperature down to about ten billion degrees Celsius. This is about a thousand times the temperature at the center of the sun.† In addition, a black hole is explained as a collapsing star with a gravitational field so strong that light cannot escape. Therefore, these â€Å"black holes† are just black voids in space, stars massive enough where the escape velocity is higher than the speed of light. According to the theory of relativity, nothing can travel faster than light. Therefore, if light is not able to escape, how could anything else be able to? Black holes are very common – one satellite discovered fifteen hundred black holes in just one small area of the sky. If an astronaut was on the surface of a collapsing star, the change in gravity between his feet and the one o r two meters up to his head would literally â€Å"stretch him out like spaghetti or tear him apart before the star had contracted to the critical radius at which the event horizon formed.† Sometimes, when a very massive star collapses, parts of the star may be blown off in an explosion called a supernova. A supernova explosion is so gigantic that it can radiate more light than all the other stars in its galaxy combined. In chapter nine, quantum mechanics are used to describe the unavoidable element of unpredictability or randomness into science. The particles in this uncertainty behavior behave in some respects like waves. They do not have a definite position but are â€Å"smeared out† with a probability distribution. A nice way of visualizing this wave/particle duality is the â€Å"sum over histories† introduced by Feynman. Instead of a particle moving in one single path, it is supposed to go from point A to point B by every possible path. With each path between point A and point B, Feynman associated a couple of numbers – one represents the size of a wave, the other represents the position in the cycle. Quantum theory has been an outstandingly successful theory and underlies almost all of modern science and technology. Chapter ten, titled â€Å"Wormholes and Time Travel,† touches on the science-fiction aspects of true science. It is stated that traveling to the future is possible, if one accelerates to the speed of light. The first indication that traveling to the past might be possible was when Gà ¶del discovered a new solution to Einstein’s equations; that is, â€Å"a new space-time allowed by the theory of general relativity.† His space-time had the curious property that the universe was rotating. There is a problem, however, with breaking the speed-of-light barrier. The theory of relativity states that the rocket power needed to accelerate a spaceship gets greater and greater the nearer it gets to the speed of light. Particles so far can be accelerated up to 99.99% of the speed of light, but they cannot get them beyond the speed-of-light barrier. There is a possible way out of this predicament – a wormhole, which is a think tube of space-time that connects tw o nearly flat regions far apart. In chapter eleven, force-carrying particles are grouped into four different categories, the first being the gravitational force. This force is universal, and every particle feels the force of gravity according to its mass or energy. The second is electromagnetic force, which interacts with electrically charged particles, and is much stronger than the gravitational force. The third category is called the weak nuclear force. We do not come in direct contact with this force, however it is responsible for radioactivity – the decay of atomic nuclei. The last category, and the strongest of all forces, is the strong nuclear force. This is another force with which we don’t have direct contact, yet it is responsible for holding most of our everyday world together. Without the strong force, the electric repulsion between the positively charged protons would blow apart every atomic nucleus in the universe (except those of hydrogen gas.) This chapter also touches on the str ing theory. In string theories, the basic objects are things that have length but no other dimension, and they either have ends (open strings) or they may be joined up with themselves in closed loops (closed strings.) String theories lead to infinities, but it is thought that in the right version they will all cancel out (though this is not known for certain.) Also, these theories seem only to be consistent if space-time has either ten or twenty-six dimensions instead of the usual four. There are many problems with more than three space dimensions. In four dimensions, the gravitational force would drop to 1/8th, in five to 1/16th, and so on. The orbits of planets around the sun would be unstable. People have searched for the underlying theory, but so far, it has been without success. In Newton’s time, it was possible for an educated person to have a grasp of the whole human knowledge; today that clearly is not true. The goal of science is to get a complete understand ing of the events around us, and of our own existence. Research Papers on A Briefer History of Time ReportThe Hockey GameEffects of Television Violence on ChildrenMind TravelThree Concepts of PsychodynamicCapital PunishmentThe Spring and AutumnHarry Potter and the Deathly Hallows EssayRelationship between Media Coverage and Social andUnreasonable Searches and SeizuresLifes What Ifs