Into The Depths Of A Black Hole Essays - Black Holes, Event Horizon

Into the Depths of A Black Hole Everyday we look out upon the night sky, wondering and dreaming of what lies beyond our planet. The universe that we live in is so diverse and unique, and it interests us to learn about all the variance that lies beyond our grasp. Within this marvel of wonders our universe holds a mystery that is very difficult to understand because of the complications that arise when trying to examine and explore the principles of space. That mystery happens to be that of the ever clandestine, black hole. This essay will hopefully give you the knowledge and understanding of the concepts, properties, and processes involved with the space phenomenon of the black hole. It will describe how a black hole is generally formed, how it functions, and the effects it has on the universe. In order to understand what exactly a black hole is, we must first take a look at the basis for the cause of a black hole. All black holes are formed from the gravitational collapse of a star, usually having a great, massive, core. A star is created when huge, gigantic, gas clouds bind together due to attractive forces and form a hot core, combined from all the energy of the two gas clouds. This energy produced is so great when it first collides, that a nuclear reaction occurs and the gases within the star start to burn continuously. The Hydrogen gas is usually the first type of gas consumed in a star and then other gas elements such as Carbon, Oxygen, and Helium are consumed. This chain reaction fuels the star for millions or billions of years depending upon the amount of gases there are. The star manages to avoid collapsing at this point because of the equilibrium achieved by itself. The gravitational pull from the core of the star is equal to the gravitational pull of the gases forming a type of orbit, however when this equality is broken the star can go into several different stages. Usually if the star is small in mass, most of the gases will be consumed while some of it escapes. This occurs because there is not a tremendous gravitational pull upon those gases and therefore the star weakens and becomes smaller. It is then referred to as a White Dwarf. If the star was to have a larger mass however, then it may possibly Supernova, meaning that the nuclear fusion within the star simply goes out of control causing the star to explode. After exploding a fraction of the star is usually left (if it has not turned into pure gas) and that fraction of the star is known as a neutron star. A black hole is one of the last option that a star may take. If the core of the star is so massive (approximately 6-8 solar masses; one solar mass being equal to the sun's mass) then it is most likely that when the star's gases are almost consumed those gases will collapse inward, forced into the core by the gravitational force laid upon them. After a black hole is created, the gravitational force continues to pull in space debris and other type of matters to help add to the mass of the core, making the hole stronger and more powerful. Most black holes tend to be in a consistent spinning motion. This motion absorbs various matter and spins it within the ring (known as the Event Horizon) that is formed around the black hole. The matter keeps within the Event Horizon until it has spun into the centre where it is concentrated within the core adding to the mass. Such spinning black holes are known as Kerr Black Holes. Most black holes orbit around stars due to the fact that they once were a star, and this may cause some problems for the neighbouring stars. If a black hole gets powerful enough it may actually pull a star into it and disrupt the orbit of many other stars. The black hole could then grow even stronger (from the star's mass) as to possibly absorb another. When a black hole absorbs a star, the star is first pulled into the Ergosphere, which sweeps all the matter into the Event Horizon, named for it's flat horizontal appearance and because this happens to be the place where mostly all the action within the black hole occurs. When the star is passed on into the Event Horizon the light that the star

Analytical Essay Sample on the Story #8220;All My Sons#8221; by Arthur Miller

Analytical Essay Sample on the Story #8220;All My Sons#8221; by Arthur Miller In the story All My Sons by Arthur Miller, there are many symbols that influence the characters’ actions and other events. Symbols such as the tree in the yard and the date November 25th represent the remembrance of Larry Keller. The downed tree also hints to the letter at the end of the story. Other symbols stand for past events in the characters’ lives and give the reader a view into the important father-son relationship between Joe and Chris Keller. One of the major symbols in the play was the tree in the yard. The tree was important to the Kellers because it was planted on the day that their son, Larry, disappeared. The importance can be seen when the tree was knocked over. The Kellers and their neighbors saw the fallen tree and remembered Larry. Also, the fallen tree hints to the revelation of Larry’s suicide letter. Another symbol that pertained to Larry was the date November 25th. After Larry went missing, the family started to work on a horoscope for Larry in order to determine if it was his favorable day. This was important to Kate Keller because she believed that her son could not possibly have died on his favorable day. Chris Keller wanting to marry Ann also represents the idea of Larry. Certain people in the family tried to persuade Chris not to marry Ann because Larry had been engaged to Ann. Also, Joe told Chris not to marry Ann because his mother would be greatly upset because she saw Chris’s marrying A nn as the recognition that Larry had actually died. Another symbol that was significant is the title, â€Å"All My Sons.† This saying was viewed differently through the eyes of Joe and Chris Keller. Chris viewed all of the other soldiers as his brothers, making them all (the Kellers and the soldiers) a large family. This view is different from the view of his father, Joe, who only recognizes his offspring .as his â€Å"sons.† A perfect example of Joe’s view influencing his actions is Joe telling Steve to send out the cracked heads. Joe’s narrow-mindedness did not allow him to realize that men would actually die from using the bad heads. Joe’s view can also be seen when he validates his actions by saying that he had done it for his family. Chris took offense to his father’s comments because Chris saw all the soldiers as his brothers. In the story, All My Sons, symbols play an important role and influence some characters’ actions. Th tree, â€Å"November 25th†, and Chris’s marrying Ann all have to do with Larry Keller, and the title shows the differences between Joe and Chris Keller. It also shows the reader a good view of the strange relationship between Chris and his father.

Materiality in Auditing Essay Example | Topics and Well Written Essays - 2000 words - 12

Materiality in Auditing - Essay Example In the process of audit planning, the auditor takes the decision as to the level of materiality they will use, accounting for the entirety of financial statements that will be audited. This judgment is mainly done on the basis of the nature, size, and specific circumstances of omissions or misstatements that could influence the financial report’s user. Moreover, this judgment is also influenced by public expectations, regulatory requirements, and legislative requirements (Vaujany & Mitev, 2013: p32). This paper seeks to discuss the importance of materiality in the auditing context, as well as to assess the secrecy of materiality levels used by auditors. According to Porter et al (2014: p73), the term material is critically essential in the context of auditing. Materiality definitions in financial reporting are especially critical to auditors, financial statement preparers, and financial statement users. While only two of these stakeholders may be involved in making decisions on materiality, in this case the auditors and the preparers, the definition of materiality in auditing is oriented more towards the user. The user’s judgment of decisions on materiality is central to defining materiality, rather than the judgment of the financial statement preparer. Budescu et al (2012: p24) define materiality as one of the fundamental and essential auditing concept, noting that the Auditing and Assurance Standard-13 on audit materiality establishes the materiality concept’s standards, as well as how it relates with audit risk. A fair and true financial statement and how it is presented will depend on the materiality concept, amon g other things. Keune & Johnstone (2012: p1650) note the relative nature of the materiality concept, arguing that what is material in a specific situation may be immaterial in another circumstance and that consideration and judgment on materiality is a matter for the auditor’s experience and professional judgment. Thus, the