Black Holes Essays (1293 words) - Black Holes, Event Horizon

Black Holes 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 neighboring 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

IP 2 Essay Example | Topics and Well Written Essays - 500 words - 2

IP 2 - Essay Example Belief has only little evidences, which few people deem they are true whereby those who may express different opinion do so based on their life’s experiences. For instance, I may claim my significant other’s love towards me is evident on how she is not afraid to express it even in the public. However, this to some people may refer her as a showy character that is possessive and only out to scare other females from making attempts of approaching me. Therefore, the issue of love or affection in this case only emerges as a belief specifically held by very few people and me alone because it does not have adequate and concrete evidence that I can give but to justify. Since, people differ based on respective opinions on how one ought to express love because of likes and dislikes to the extent the conventional ways (holding hands in public) may not be acceptable to some. Despite the evidences outlined in the above regarding pieces of evidences, I still hold onto my former categorization of both knowledge and belief. This is because in the latter’s evidences comprise of individual experiences, mythology and observation whereby in the former two confirmations apply only to the person who has felt them can prove (Zalabardo, 2012). In most cases, those close or around him or her may end up not believing the experimenter because they are not sharing similar circumstances. In addition, it is quite tricky to prove an aspect of belief from an individual level like love and faith whereby even the observer contrary to knowledge may end up misinterpreting the relayed information. This is evident in the example that I have given above regarding publicly expressing love whereby some may term as either of the partners being possessive. This is because belief in most cases encompasses justifying by the convinced (Broeck & Brestoff,

The National, Regional and International Consequences of the US Essay

The National, Regional and International Consequences of the US Invasion of Iraq on Egypt - Essay Example This war took place within twenty-one days and was characterized by maximum combat involvement. Economic and political impacts of the United States Invasion Before the war, Saddam and the Baath Party had ruled Iraq and resulted to dictatorship. Their success was attributed to the good opportunities that are in the country, like oil wells and good business. However, the invasion brought various changes on both the economic and political happenings in the Iraq state in relation to other countries for example Egypt (Austine 23). Economic effects of the American invasion to Iraq on Egypt The United States of America invasion on Iraq has caused many negative effects among a lot of countries all over the world. These impacts can be identified with the help of assessing trends threats, and opportunities in some countries in the Middle East for example, Egypt. According to analysts, Egypt government opposed the invasion in Iraq but continually offered its military as a major lever of the Uni ted States influence in the Middle East. It has been considered that Egypt is among the main counterterrorism allies that quietly supported the nuclear war on the Iraq state but publicly opposed it. This is due to their commitment in maintaining strategic relationship with the United States of American during the war (Gordon 21). Probably, their support for this war can be attributed to economic completion mostly in the world of business. Iraq had almost similar strengths as Egypt because of its availability of oil and the tourism industry in Egypt. According to most reports, the American invasion of Iraq had less economic impacts on Egypt than that many economists had foreseen. The main loss was experienced in the oil-food program that was between Egypt and Iraq and led to the government’s announcement of working to involve Egypt’s companies instead. These two countries had exchange programs based on their strengths but had to seize after the invasion. As it is well k nown, Egypt has various historical sites that improve its tourist attractions. The Iraq war caused the tourism industry in Egypt to experience quite a number of negative effects. Egypt is among those countries that rely on tourism as a major economic empowerment especially due to its opportunities. For instance, the availability of Pyramids of Giza that are known to attract tourists from all over the world. The war in Iraq resulted to negative thought about touring with most people thinking of nothing but war. Tourists had fear of visiting because as a result of war, most Egyptians had resulted to demonstrations (Keane 31). Egypt’s peak season is usually in March and April, which is consequently the same time of war. According to statistics, a forty percent reduction in trade activities and advantages was experienced in Egypt. This reduction has resulted to continued regression of the Egyptians economy with effects being felt by the ordinary Egyptians. According to numerous e conomists, this war has resulted to a close to eight billion dollars losses on Egypt’s economy leading to requests for the World Bank to fund the country. The main reason for this reduction is the detachment from Iraq, yet, for a long time Iraq has been the main Egypt’s trading partner. With the rise of war in iraq, a lot of