Hole Research Papers Samples For Students

Introduction

A black hole is a region in space-time, the gravitational attraction which is so large that it can not leave even objects moving at the speed of light, including photons of light itself. The boundary of this region is called the event horizon, and its characteristic dimension - the gravitational radius. In the simplest case of a spherically symmetric black hole Schwarzschild radius is equal to it.
Theoretically, the possible existence of such regions of space-time should be of some exact solutions of Einstein's equations, the first of which was obtained by Karl Schwarzschild in 1915. The exact inventor of ...

No one has ever seen a black hole with their own eyes but everyone has heard about black holes. New technology for making telescopes has helped scientists learn more details about black holes but the principles of physics give us our basic understanding.
When a massive star dies the type of black hole formed is a stellar black hole. The star caves in on itself when it dies forming a black hole. (Figure 1) When a star with a huge mass dies, part of the start explodes into space – that is a supernova. The area of a black hole is small because the dead star’s ...

Black holes are space zones in the universe that are dark in nature and possess natural forces of attraction that have a very high gravity. This implies that they are able to attract and pull anything including light at a very high speed. This explains the origin of the name, Black hole. Several myths have been generated in many attempts to try and explain what a black hole is and Hollywood is at the forefront of it. Movies from Hollywood portray black holes as time physical entrances to tunnels that if one goes through, he can either move back or fourth in ...

Abstract

Ever since the understanding of the phenomenon of the Big Bang, scientists have put I all their energies to understand the functioning of all the objects that make our universe. While most of these objects can be seen and observed, Black Holes make for a mystery much difficult to discern. Nevertheless, after years of hard work and energy, scientists and astronomers have managed to establish certain facets of black holes. One of the most important discovery in this respect has been the relationship between Black Holes and the Galaxies. It has now become an established fact that most galaxies, if ...

Stratospheric Ozone Depletion

Ozone depletion is a natural phenomenon of the earth’s stratosphere due to the presence of free radicals that are from natural causes such as volcanic activity. However, as man evolved, he discovered his environment and built industries during the industrial revolution. These industries emitted tones of pollutants into the atmosphere, including compounds Ozone Depleting Substances. The continuous use of CFCs also contributes to the effect significantly. The worst case of ozone depletion ever recorded happened in 2006, during winter and early spring in Antarctica. That sounded a loud alarm to environmental scientists, political leaders and civil organizations come ...

Abstract

In the novel ‘Black Hole,’ teenagers who engage in sexual behavior contract a decision that leads to genetic mutations which are hard to conceal. The disease is a replica of the Aids Pandemic and the struggles which teenagers have to endure during their adolescent years. The importance of the study is to identify how teenagers in the book the black Hole relate to the youth in the current society. Teenagers experience hormonal imbalances which cause them to lose control and are mostly controlled by their sex drives. Sexual attractions are common during this developmental stage of life, and most ...

Golf is a fascinating sport mostly considered to be for the elite. Mostly we see it played but have never asked about its origins. This paper seeks to shed light on the origins of golf. It looks to find where and when this sport started. A review of its early days is given as well as the evolution of the game to what we know about it today. Exceptional attention is granted to the origin of the golf course design. A look at who gave the initial design and where it came from is also featured. Golf is played using ...

(Teacher)

Sinkholes are a problem across the globe, especially in urban areas. Sinkholes can cause damage to roads, collapse structures, and destroy property. The biggest way to prevent a sink hole is to learn what factors are included in the formation a sinkhole is, how a sinkhole forms, and wheatther or not the sinkhole was naturally formed or if humans created the situation that caused the sinkhole in the first place. While it is not possible to actually prevent natural sinkholes, there are several ways that sinkholes which are created from human activity may be prevented, or at least ...

Introduction: What if the countries are not cooperating to protect the ozone layer?

Thesis: Because of the industrial advancements, emissions of non-degradable substances known as CFCs have infiltrated the ozone layer. While there are specific measures that have been taken to reduce these emissions, countries must cooperate in a bid to protect the ozone layer.
I. The CFCs and their impact on the ozone.

II. Measures already taken.
- Cessation of CFC emissions since 1995 by the developed countries.
III. Production Paragraph.
- Developing countries that are still producing too much cfcs are likely to reduce emissions due to their effects.
IV. Conclusion.
- Countries need to ...

Engineering

Abstract
Continuous Flight Augers (CFA) require special expertise to construct but done properly they are economical and very successful for areas with inconsistent load carrying capacities. Examples include using CFA pilings for guard rails, highway reinforcement, highway junction improvements and buildings. The CFA pilings are similar to driven and bored piles but offer different advantages when working in good to marginal soils and in projects where the load capacity needs vary. An auger with a hollow tube is used to bore the hole and then when the auger tip reaches the final depth concrete is added as the auger ...

Shaped tube electrolytic machining

Several methods have been employed to drill holes. Most of the time only mechanical methods have been thought up. These mechanical methods have a lot of disadvantages. Some of them being production of heat while drilling and also there was use of a lot of energy. Moreover, to drill both small and large holes is very difficult especially in hard and brittle materials using traditional drilling methods (Robert, H. & Allen, D, 1994). In some areas such as space, automobile, electronic sand computer (printed circuit boards), medical (Surgical implants), optics and miniature manufacturing provide the need for drilling holes in hard ...

Sinkholes; Made by nature or humans?

Abstract
Sinkholes seem to swallow the earth and everything sitting on the surface. Some sinkholes are small and have relatively no effect on humans or property. Some sinkholes are very large and will leave ga[ing holes in the landscape. Sometimes these large sinkholes will devour a road and cause harm to the humans who live, work, and travel where the sinkhole is located. For example, a series of sinkholes and a landslide occurred simultaneously in Harbor, Oregon. This sinkhole was a combination of nature and human activity. Many sinkholes are caused by human activity that nature decides to ...

Fig 1: NDRC Techniques

Introduction

Non-Disruptive Road Crossings are manuals which outline unifying and standardizing measures of Road Engineering Practices. The significant objective of the project is to enhance the management, planning, design, construction, maintenance, and operation of all roads and related infrastructures to ensure a safe and uniform operational and structural capacity throughout the road network in Dubai. The complexity in road construction and to some point other engineering projects leaves very little to be argued about on their significance with respect to the influence they have on the environment. It is a fact that projects like roads, bridges, and dams ...

Introduction

The ‘yips’ is a term used in sports to describe a transient loss of fine motor skills due to various causes. Although the major etiology is unknown, many researchers attribute it to a psychological and neurological cause. It is a reversible condition which has lead to the end of many sports careers due to poor performance (Vonbrock 50). In golf, it is referred to as a movement disorder that usually impedes with putting. This is because it leads to twitching, jerking and loss of concentration that leads to missing of short putts in golf (Cullen 56).

Many researchers have attributed the condition to biochemical ...

Satellite has transformed the manner the world is being looked at, and the manner people send information about it. Similar to enormous mirrors in space, they may be employed to bounce internet data, telephone calls, and television pictures from one point of the globe to another at light speed. They are utilized for communication in addition to sensing information. From facilitating military drills during combats to facilitating planes and ships orbit the planet, and from predicting the weather to locating mineral deposits. A homemade satellite can build by persons for research or spy purposes. The following instructions demonstrate how ...

[Class Title]

Introduction
Despite the call for increased environmental awareness, most people remain unaffected by environmental concerns. Although it is an accepted fact that the environment is everyone’s concern, most individuals and organizations take their social responsibility to nature for granted. Most environmental programs are not taken seriously. For instance, most people knew that throwing litter could adversely affect the environment yet evidence show that this awareness is of no effect or is taken for granted. Cigarette butts, for example, still constitute the largest percentage of street litter, which according to the Environmental Protection Agency (EPA), is ...

Abstract

The effects of oil drilling towards the environment or any drilling of similar nature such as drilling of natural gas has been extensively discussed. Major stakeholders such as the government, the private sector and common people that are directly influenced by these drilling activities have different views towards this topic, which makes it more controversial. Some idealist stakeholders, for example, believe that oil drilling poses serious environmental threats. For the same reason, they believe that the risk outweighs the advantages and so these drilling activities must be stopped at once. On the other hand, those stakeholders that is benefiting ...

Introduction3

Statistics.3
Offshore oil drilling4
Effects on the environment.7
Recommended solutions10
Conclusion.13

Works Cited14

Abstract
Today, the United States has over 5600 offshore gas and oil platforms; there are also over 27,000 miles of pipeline in the Gulf of Mexico area alone. This shows the extent to which offshore oil drilling occurs in the United States. In other developed parts of the world, the situation is the same. Oil is a product on high demand; this facilitates efforts in extracting it form its deposits deep in the sea floor. The retrieval requires the use of sophisticated equipment ...

Introduction

When the first crude telescopes grazed the vast space, the 17th century and astronomers such as Kepler and Galileo was already making discoveries of such as the moon craters, the rings of the planet Saturn, and the giant planet Jupiter. These discoveries paved the way for a more extensive exploration of the cosmos, which was ultimately revolutionized by the birth of the Hubble telescope. In April 1990, word’s most advanced space telescope named after the astronomer Edwin P. Hubble was launched at 353 miles above the earth’s surface with a mission to see deeper into space and beyond. The ...

LIST OF FIGUTES 3

LIST OF TABLES 3
1. ELECTRO DISCHARGE MACHINING – EDM 4
1.1 Introduction 4
1.2 History of Electro Discharge Machining Process 5
1.3 Detailed Explanation of how the process works 6
1.4 Uses/applications of the Electro Discharge Machining Process 8
1.4.1 Prototype production 8
1.4.2 Coinage die making 8
1.4.3 Small hole drilling 8
1.4.4 Metal disintegration machining 9
1.5 Examples of products produced by Electro Discharge Machining Process 9
1.6 Advantages of Electro Discharge Machining Process 9
1.7 Limitations of Electro Discharge Machining Process 10
2. ...

Introduction

John Hunt Morgan was a popular Confederate general and cavalry officer during the Civil War. He is most remembered for his Morgan’s Raid wherein he led several hundred men on a more-than thousand mile journey from the South into Kentucky and as far as southern Ohio, which is the farthest point reached by any Confederate group in the north during this war (Dupuy, Johnson and Bongard, 1992, 525). He sowed terror and fear in the hearts of ordinary people from Indiana and Ohio (Boyer, 1912, 164-165). This short paper will examine General Morgan’s escape from the Ohio Penitentiary in ...

Do we need that Endangered Species Act?

The Endangered Species Act of 1973 was an innovative measure for the future of nature and continues to protect the diversity of the animal and plant kingdom of the United States. This law is important to the survival of all living things because every living organism depends on the life of another living thing to survive, including humans. Aquatic species in Florida are essential for the health of the environment in which it lives. For example, because all creatures and plants depend on each other for survival, when one species is allowed to become extinct, all other species in ...

Managing Change in the Airline Industry

Over the past few years, the need for change in the aviation industry has been more imperative. Change in the aviation industry is being imposed on them from a variety of sources, like commercial pressure, regulations and changing technologies. The need for change management skills is therefore at its highest within organizations in the sector, in order for them to meet these challenges. Even then, research on organizational change shows that only about between 30 and 50 percent of major initiatives end up having a positive outcome (Leva, McDonald, Ulfvengren, & Corrigan, 2012). While change is necessary, it is also ...

Kazimir Malevich's Suprematism Works

Kazimir Severinovich Malevich spent his childhood in villages of Ukraine1 and knew nothing about professional art, although he was exposed to peasant art as a child. Later he moved to Moscow and got his education in art in Moscow. His work was influenced by avant-garde painters of the time and he responded that art did not need the artists and can advance on its own.Thesis -The aim of the essay is to provide a broad overview of Malevich’s artistic practices and the Suprematism of his work. The paper discusses the reasoning and meaning behind his work and why ...

Abstract

The purpose of the assignment is to look at the COP21 report, the main factor that led to the conference was the rising rate in the greenhouse effect due to the emission of toxic gases into the atmosphere. The assignment also looks at the key tenants of the COP21 initiative and lastly the significance of the Conference to the business world and the chosen industry that is the Toyota motor vehicle company. It focuses on the effect that the conference has had on the operations of this company and other businesses in the world. The company has agreed to ...

Introduction

Gender is one of the themes that Morrison explores in her novel Sula. Gender roles help to create unevenness in terms of the power balance between women and men. This unequal balance of power that is prevalent in the social environment of her characters in Sula ultimately becomes a part of them. The impact of this is that it becomes nestled in the psychological conflicts they encounter and experience. In this novel, these psychological conflicts play out on the sexuality platform. The sexuality of the characters results in the internalization of the unequal balance of power between women and ...

Introduction

Information security is a very important component of security operational technique. There has been many aspects of the security field that have been affected with the introduction of computers. Before the introduction of computers, there were different techniques that were followed in order to achieve security (Cole, 2011). With the use of computers, there has been the development of many different security techniques that have helped to endure that security has been achieved in the field of computers. This paper will address the security operational techniques in the era of information technology and how things have changed from the era ...

A dental cavity in a tooth is the result of the decay process that happens over time when bacteria in the mouth produce acids. In a time, acids can dissolve enamel and cause a hole, which is known as a cavity. Unlike some other injuries, a cavity will not heal by itself and needs to be filled. Several different materials are available, and each material has advantages and disadvantages.
Dental fillings can be categorized as direct or indirect restorations. Direct restorations are fillings that get inserted into a cavity in a single visit. These substances include consisting of amalgams, glass and resin ionomers and composite ...

The Recession of 2008

Introduction
The recession that began in 20007 is apparently the most profound downturn that affected United States during the post-war era. Possibly, the part that was impacted the most consequent to this as recorded in history is apparently the labour market. This recession negatively affected the United States labour market a fact that was well evident from the sharp curtails in consumer spending. In a more in-depth and insightful way, this paper will explore and elaborate the impacts of the great recession that persisted from December 2007 to June 2009. In essence, this paper will discuss the unemployment, underemployment, and ...

Introduction

Biology and information technology holds many things in common. The two aspects deal with astounding complexity, organism representing biology and networks, computers representing technology. Experts have developed many innovations in the world today that focuses on solving different problems affecting the society. The following paper helps in naming and explaining how a specific scientific method helps solve the problem.
The definitions of scientific and pseudoscientific bring many confusion and debates. Pseudoscience refers to the abuse of a certain claim that an individual does not like for any given reason. There exists a concrete difference between science and pseudoscience.

Strengths and limitations of scientific knowledge and the scientific method

One of the ...

Introduction

William Jordan says, “Mistakes are the growing pains of wisdom.” His quote reflects the wisdom and growth that Alice goes through in wonderland. The novel follows the story about a seven-year-old who is bored by her sister’s constant reading of childish stories. Alice is in search of adventure, and one of her exploits leads her to Wonderland, where the adventure begins. The story is about maturity in a world where reasoning does not apply. In wonderland, as it will be discussed, Alice is seen to grow in terms of her thinking about the world. There are specific events that contribute ...

- Introduction
I plan to teach students of grade three about ways and methods they can use to take care of their teeth. Teeth are a vital organ of the body. Healthy teeth are prerequisite for a healthy body. Defective teeth result in malnutrition of the body. Shiny and perfect denture reflects healthy soul residing in a healthy body. The students will be taught the correct method of brushing and flossing of the teeth. The students will be enabled to understand the importance of having healthy dentures.
Reason of choosing grade 3- Grade 3 child belongs to age group of ...

Industrial Pollution Effects on Global Warming

Introduction
Changing climate is also changing our economies, health and communities in almost every part of the world. The fast and rapid industrialization in the past increased the need of thermal power plants and other industries run by fossil fuels. They contributed in atmospheric changes drastically by emitting different pollutants including Co2, CO, SOx and NOx. They have not only threatened the environment by global warming but also give rise to acid rains. These acid rains destroyed forests that are the major sink of greenhouse gases especially carbon dioxide (Held & Soden, 2006). The variety of chemical emission including ...

(Student’s Name)
(Instructor’s Name)
The Rhetorical Function of Carpe Diem in John Donne’s “Elegy XIX: To His Mistress Going to Bed” and “The Flea”
Carpe diem is a Latin term which is usually interpreted as meaning "seize the day". However, as indicated by the website, <http://www.phrases.org.uk/meanings/carpe-diem.html>, the phrase actually means "'enjoy the day, pluck the day when it is ripe'" (para. 2). Additionally, the author of the website notes the following: "The extended version of the phrase 'carpe diem, quam minimum credula postero' translates as 'pluck the day, trusting as little as possible ...

Part I – CFA Pile Installation

[University]

Abstract

This paper is an investigative report on the use of Continuous Flight Augers or CFA in granular soils. In order to guide us in our investigation, this parts that are interrelated to each other. We will discuss the history of CFA’s and its application. This paper will also touch the common formulas used in its application and how it was derived. By taking a critical look into the formulas, we should be able to determine its effectiveness and should be able to identify flaws if there are any. We should also be able to identify the parameters that ...

Computer attacks on companies happen all the time, but many of them are not publicized. The damaging result of revealing such information to the public leads to jeopardized information and creates avenues for future attacks.
Google became the latest casualty in 2010 among other companies to reveal to the public that it had faced a series of attacks originating from China. The attacks were directed at Gmail users who were human rights activists. According to Elinor Mills, the search engine said it would stop its censoring its Web results in China and could finally exit the market.
According ...

Country Report: China

- Introduction
Since the time of the early civilizations, China has remained to be permanent actor in the development of practices, traditions, and history throughout the globe. From being traders from the East, the Chinese had been able to keep up with development and be one of the world’s leading actors in politics and economy today. However, while the nation is known for its steady economic development and growing political power, China is also known for its still communist roots and the potential impact it has over its neighboring countries. The international community, especially the United States, ...

Foundation of modern cosmology

Cosmology being the study of the universe has been changing over the years to what we currently view it as. Modern cosmology has been founded on the works of various principals who have studied astrology over time and during different eras.
The ancient European medieval and ancient Greeks believed the earth to be the at the universe’s center. They believed that the moon, planets, and sun were orbiting the earth. This idea was believed by many including the Catholic Church who in fact influenced people of their religion to believe so. The Catholic Church banned anybody from ...

The Nation -

The Seminole tribe is the product of an ethno-cultural blending of the Creek peoples from the lower-central Southeast with indigenous Floridian tribes such as the Choctaw, Timuquan and Apalachicolas, some of whom were part of the Muschogean culture. The meaning of the word “Seminole” has been interpreted, loosely, as “runaway” or “broken off” (McReynolds 1957, 12). This refers to the separation of the Lower Creek peoples from the larger tribe, as described by an 18th-century observer. “Runaway,” reported historian Wiley Thompson, was “applicable to all the Indians in the Territory of Florida as all of them ran awayfrom the ...

Introduction

In March 23, 2010, the US Federal Government implemented the Patient Protection and Affordable Care Act (PPACA) also known as “Obamacare”. This law, signed by President Barack Obama overhauls the US healthcare system, which was formalized in 1965 through the establishment of Medicare and Medicaid. This law’s objectives are to decrease the number of uninsured Americans and reduce the cost of health care, through a series of mandates, subsidies, tax credits and other mechanisms that will increase the number of insured Americans and make the delivery of healthcare more efficient thus reducing costs.
This bold law is currently ...

1. ABSRACT

The purpose of this experiment was two-fold. Firstly it was to synthesize shape-controllable Copper Oxide (Cu2O) under alkaline conditions by using hydrothermal methodology. Secondly it was to measure and evaluate its application for photocatalytic degradation of direct blue dye 53 also commonly known as Direct Blue 53 or Evans Blue. Materials used for the first step were Cu2O and the two reactants, CuCl2.2H2O and NaOH. The temperature during the hydrothermal process was raised from 80°C to 140°C. Two products were synthesized: a) the Cu2O nanorod and b) a mixture of Cu2O nanorod and Cu2O nanocubes.

Hydrothermal temperature was found to ...

In 1905, Einstein determined that the laws of physics apply in the same manner to all non-accelerating observers. He also determined that the speed of light in a vacuum was not dependent on the motion of all observers. Einstein called this, the law of special relativity. This theory introduced a new framework for physics by proposing new concepts of time and space. Einstein argued that the time-space around the earth could not only be distorted but also twisted due to the planet’s rotation (Einstein, 1950). Newton quantified the force between two objects (gravity) by his three laws of motion. In ...

Definition and Causation of Edward’s Syndrome

Edwards’s syndrome is a condition and severe genetic disorder caused by a chromosomal defect. The syndrome occurs in approximately 1out of every 6,000 live born infant (Trisomy 18 Foundation, 2010). A human bring is supposed to have 46 chromosomes, of which, 23 are obtained from the mother while the other 23 are obtained from the father. With in mind that conception is usually the fusion of male and female gametes (sperm and ovum), in case of an error in the formation of any of the two gametes, there is a high prospect that the baby formed from such gametes will ...

Medicine

Streptococcal infection is a disease that is caused by streptococcus bacteria. This disease can easily spread from one person to another. The disease mostly affects children between the ages of 5 to 15 years. However, the condition also affects people of all ages. The diseases usually affect the throat. Some of the symptoms of the disease are fever, enlarged lymph nodes nausea and fatigue (Martin, 1999). The disease can be treated using antibiotics considering the fact that it is caused by a bacteria. If the disease is not treated, it can lead to complications that can even lead to death.
...

Introduction

Increased health costs in the recent past have forced US government to come up with health care reforms that will help to reduce its expenditures on health care provision. These reforms are contained in the health care reform bill that was enacted in 2010 by President Barack Obama in the Patient Protection and Affordable Care Act (Cohn, 2010). Health care reforms have numerous pros and cons to both the government and the citizens. The democrats support these reforms while the republicans oppose on different grounds. This paper discusses the benefits and costs that come with these health care reforms ...