Abstract A discussion about a career as an aircraft mechanic. The writer uses five sources to explore the education and skills that are required for the career. It examines the changing airline industry and evolving occupation of aircraft mechanics. Includes details of what the profession entails and what skills are appropriate as well as the positive future outlook for those who choose to work in the field.
From the Paper "The airline industry is an ever-changing field. There are many types of aircraft being used today, including, freight, commercial passenger and private passenger planes. Each plane has to be built, maintained and fixed when something goes wrong. The field of airplane mechanics is a growing and always changing area of job exploration. Skills as an aircraft mechanic can be utilized in the armed services, the commercial airline field, or at an airfield with private aircraft. They can also be used to work where airplanes are sold and brought in for maintenance and repair. It is a field that promises to continue expanding and as the world continues to globalize the opportunities will continue to increase."
Abstract This paper examines how nuclear energy is a controversial form of energy that is being phased out of American society. No new nuclear reactors for creating power have been ordered in the United States since 1978. It looks at how nuclear energy is not only used to generate electrical power for cities and towns across the world, it is also used in weapons of war, to power nuclear submarines and in medicine. It evaluates how the benefits of nuclear power are many, but so are the risks.
From the Paper "Nuclear weapons have existed in the world since World War II, when the United States dropped atomic bombs on Nagasaki and Hiroshima in Japan to end the war. After the war, the Soviet Union developed their own nuclear weapons, and the resulting Cold War made backyard bomb shelters popular. Everyone was worried someone else was going to drop the "bomb" and cause a nuclear catastrophe. Nuclear weapons were beneficial to society when they were first created, because they ended a war that could have continued on, thus saving lives in the end. However, today nuclear weapons are used mainly to keep other countries in check, and the threat always looms that a bomb could be dropped which would cause a worldwide nuclear disaster, or terrorists could acquire a bomb, causing a disaster."
Abstract This paper considers why psychology can never be a science like physics by looking at Descartes' philosophy in detail. Descartes' thinking related to this issue is discussed - it begins with a discussion of the nature of the body and the mind and the link between them. The nature of ideas are then described including why Descartes believed that science could only be studied on the basis of observations and experiments.
From the Paper "The first important part of Descartes' philosophy relating to the study of psychology is his consideration of the difference between the body and the mind. Descartes saw the body and mind as having different features. He saw the body as an object, based on his definition of an object as something that occupies space, is flexible and is movable. These same features are not true of the mind. The mind does not occupy space. It is important to note here, that the brain occupies space. However, when Descartes refers to the mind he refers to its thinking capacity, and this does not occupy space. The mind is also not flexible or movable. Therefore, according to Descartes the body is an object and the mind is not. This explains one reason why psychology cannot be a science like physics. According to Descartes, only an object can be dealt with scientifically. Since the mind is not an object, it cannot be treated scientifically."
This paper examines a category of ballistic science known as terminal ballistics, the study of how a projectile penetrates solids and thus is the mechanism of incapacitation.
Abstract This paper explains that the penetration and "stopping power" of a bullet can be measured using the kinetic energy and Taylor Index equations. The paper reveals that wound ballistics is concerned with the motions and interactions of the projectile with tissue. The author believes that, through understanding of the physics behind bullet impacts and penetration, the criminologist more fully understands how different types of projectiles react when striking flesh or other resistant mediums and can lead to better a understanding of the whys and hows of a crime. Formulas included.
Table of Contents
Introduction
Physics behind the Bullet
Wound Ballistics
Conclusion
From the Paper "To get the bullet in a vital area you need penetration. As a rule of thumb, velocity times sectional density is equal to relative bullet penetration. This is valid for bullets of similar composition. In good hunting bullets, expansion is consistently in the neighborhood of double the diameter and we assume the bullet will retain its weight. If the bullet goes to pieces, losing weight and consequently its sectional density, you might as well forget about it. The heavier bullet has a higher sectional density and will maintain the higher sectional density when it has expanded to double its diameter. In addition, the heavier bullets tend to have lower velocity. At lower velocity the resistance and consequently crushing force on the bullet nose, is lower, so expansion is delayed. This is why heavy bullets have delayed expansion, and do not show the same tendency to blow up on the surface as light bullets even though they have identical impact energy. It is how a given bullet interacts with tissue that determines its lethality."
Abstract This paper presents an overview of the process whereby crude oil is turned into gasoline in a refinery. The paper gives a breakdown on all the components used in the process. It then looks in detail at the four steps used in the process: separation, upgrading, conversion and blending.
From the Paper "The various constituents of crude oil have one big difference in their physical properties that can be used to separate them, i.e., their boiling point. Distillation is a process wherein a liquid is boiled to a point that it vaporizes and then it is collected and cooled down again to get it in liquid form again. However, if the original mixture that was being boiled consisted of two of more liquids with boiling points that are sufficiently far away, it would be possible to boil and vaporize one of them and then collect only that liquid at the other end. This is the process called fractional distillation. In the separation stage, this is the principle that is fundamentally at work."
Abstract This essay provides a brief background on Isaac Newton, the man and the scientist. The main focus of the paper is Newton's three laws of motion. 1)Law of Inertia; 2)Law of Acceleration; and 3)Law of Interaction. The paper explains what each law is, how it applies to the behavior of motion and what its significance is to the world of physics. Through these three laws, Newton was able to prove the nature of objects in the universe, and how they interact with each other.
From the Paper "The First Law of Motion is stated as follows: "An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force" (Physics Classroom 2003). The first law is also called the Law of Inertia, and explains the concept of inertia, which is an object at rest. The first law explains that, in properly defining inertia, "the tendency of an object to persist in its state of rest or uniform motion in a straight line is called inertia" (Navaza 1996 110). Theoretically, the first law of motion is just a restatement of Galileo Galilei's analysis about the nature and behavior of motion."
Abstract Based upon a study of several highly respected books by prominent sociologists such as Max Weber, Anthony Giddens and Martin Hollis, this paper critically explains and analyzes the relationship between sociology and science.
Abstract Resonance is a term belonging to the mathematics of sound, and to different fields of physics and applied physics. In music, resonance involves the cause of sound produced by musical instruments, in effects that affect standing waves of sound due to resonating strings and air columns that create different frequencies.
Abstract Sources of light have different characteristics and properties. In this paper, we will study the metal filament lamp and the arc lamp in order to determine some of these differences.
Abstract This paper focuses on the hardware behind fiber optics technology, particularly the cabling. The author discusses how fiber works and what it can do and why it's a technological leap over previous networking technologies, which rely on copper wiring. The author points out some of the advantages and applications of fiber optic technology.
Abstract This paper examines various ways in which information is transmitted: Frequency Division Multiplexing, Time Division Multiplexing and the use of Wavelength Division Multiplexing, which uses fiber optics.
Abstract This essay will examine the historical development of human knowledge of the wave and particle nature of light in order to understand the crucial changes and reevaluations made in scientific thought.
Abstract This essay will examine the thinkers that revolutionized our knowledge of light and the major experiments that led to our current knowledge of the speed of light.
Abstract This paper is written about refraction and reflection images in telescopes. Refracting telescopes were the only type of telescope for nearly a hundred years" (Course Notes 36). In the refractor telescope, the objective lens is responsible for magnification. In reflector telescopes, it is the primary mirror that collects great amounts of light from distant objects and creates a brighter image.
