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Fluid Mechanics, 1996.
Study of behavior of fluids. Fluid statics, kinematics, conservation of mass, momentum, energy, potential & viscous flow, more.
3,150 words (approx. 12.6 pages), 7 sources, $ 111.95
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From the Paper
"The engineering definitions, methods of analysis, and significance of many elements of the study of fluid mechanics are presented.
Definitions and Fluid Properties
Fluids can be either liquids or gases, and fluid mechanics "refers to the study of the behavior of fluids, either at rest or in motion." Nunn elaborates that there are "two main physical properties defining a fluid: density and viscosity." Nunn then subdivides fluid mechanics into three major categories of ideal fluid flow, in which density is constant and viscous effects are negligible; compressible flow, in which density varies from place to place throughout the fluid and viscosity effects are trivial or..."
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Black Holes, 2002.
An introduction one of space's greatest phenomenons, black holes.
577 words (approx. 2.3 pages), 4 sources, $ 20.95
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Abstract
The paper defines black holes and explains what they are made up of. The paper explores common misconceptions surrounding black holes, as well as other mysteries. Finally the paper examines theories regarding how black holes eventually end.
From the Paper
"Black holes, one of space?s greatest phenomenons, appear to be tremendous concentrations of matter, usually at the center of a galaxy; however, smaller back holes are possible. The matter is in the form of neutrons, protons, and electrons, tightly packed together by their mutual gravitational attraction. The beautifully descriptive name comes from the fact that light cannot exit from a Black hole. They are suspected to form in the death and collapse of a star that began with more than10 times the sun's mass (those with less mass become white dwarfs or neutron stars)."
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Albert Einstein, 2001.
Discussion of what makes him a modern hero; his scientific methods & achievements, his humanitarian efforts; early life & shaping of his character.
1,125 words (approx. 4.5 pages), 5 sources, $ 39.95
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From the Paper
"This paper will discuss what makes Albert Einstein a hero. Webster's Ninth New Collegiate Dictionary gives several definitions of a hero, most of which apply to Einstein. According to Webster's a hero is a mythological or legendary figure endowed with great ability; a man admired for his achievements and noble qualities; the central figure in an event, period or movement; and an object of extreme admiration and devotion. These definitions can be readily applied to Einstein who was indeed a hero of the world community. Unlike heroes of legend, however, Einstein was a modern hero.
In naming Albert Einstein A Person of the Century@ TIME Magazine wrote for Einstein to become a modern icon, especially in America, required a total revision of the definition of a hero."
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Steven Chu, 2001.
Life & work of Nobel Prize winning physicist; his major scientific contributions.
1,125 words (approx. 4.5 pages), 3 sources, $ 39.95
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From the Paper
"The Nobel Prize is perhaps the most coveted recognition of excellence in a given field. In 1997, the Nobel Prize in Physics was given to Professor Steven Chu of Stanford University along with two of his colleagues, William D. Phillips and Claude Cohen-Tannoudji. The contributions of these three men mounted over the span of more than a decade of research and experimentation, culminating in the development of groundbreaking new methods to cool and trap atoms with laser light.
Steven Chu has been an avid Physics enthusiast ever since his high school days in Garden City, New York, where under the tutelage of his Advanced Placement Physics teacher he was given his first taste of genuine lab experience(College Board Online, 1998)."
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Black Holes, 2002.
A discussion on the existence of black holes.
1,392 words (approx. 5.6 pages), 5 sources, APA, $ 46.95
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Abstract
This paper discusses how black holes are created. It studies the ideas of physicist John Mitchell, his discoveries and how Isaac Newton's physics ideas helped lead to his discoveries on black holes. It also covers white dwarfs (stellar corpses), the most famous being Sirius.
From the Paper
"The black hole was first named by the English physicist John Mitchell in 1783, more than two hundred years ago. But what are these black holes? Do they really exist? Based on planet movement studies made by Tycho Brahe and Johannes Kepler, John Mitchell deduced the existence of a force that made the Sun, the Earth, the Moon and everything contained in the cosmos."
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Astronomy, 2002.
A study of the origins of the universe, the planets and stars, and a look at the astronomer's tools of trade.
730 words (approx. 2.9 pages), 6 sources, MLA, $ 26.95
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Abstract
This paper explores methods used by astronomers to measure the universe, the dual nature of light, origins of the universe and the solar system and types of stars. It also discusses planets and other celestial bodies.
From the Paper
"Another way to measure the universe is using shadows. Some astronomers observe ?dark silhouettes cast by distant clusters of galaxies (Glanz,1999)? against the ?cosmic microwave background radiation (CMBR) (Glanz, 1999)? The glow from this radiation provides a back light that helps measure the size of the shadows. The CMBR was formed back when the cosmos were only 100,000 to 300,000 years old. Because of the CMBRs? age, ?everything in the visible universe lies in front (Glanz, 1999)? of it. When the radiation started out, it had hot temperatures due to the universe just being formed. However, as the universe expanded, the temperatures cooled. This gives astronomers additional information to aid them in their measurements."
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Heat Transfer Mechanisms, 2002.
An introduction to heat transfer, including a description of convection, conduction and radiation.
1,560 words (approx. 6.2 pages), 7 sources, MLA, $ 51.95
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Abstract
This paper briefly describes the different forms of heat transfer. Heat transfer is a process that occurs on the molecular level. The basics of the process are defined, with three heat transfer mechanisms identified-- conduction, convection and radiation.
From the Paper
"In metals, thermal energy is transported by conduction band electrons. This is based on understanding molecular orbital bands. This refers to solids that form a lattice, including metals. These lattice metals are understood by looking at the lattice itself as one large molecule rather than looking at it as individual atoms. The electron orbitals of the atoms overlap, creating a continuous band covering a range of energies that extends throughout the lattice (Shriver, D.F., Atkins, P.W., & Langford, C.H. Inorganic Chemistry. New York: Oxford University Press, 1994, p. 91)."
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Calculus and its Application to Aerodynamics, 2002.
This paper explores some of the different applications of calculus to the field of aerodynamics.
2,525 words (approx. 10.1 pages), 5 sources, APA, $ 76.95
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Abstract
This paper states that the field of aerodynamics could not exist without calculus. The author discusses the most prevalent and widely used equations. The advent of the computer has greatly improved the use of these equations in the field and allowed the field of aerodynamics to become more precise.
Table of Contents
Introduction
The Myth about Bumblebee Flight
Turbulence
The Bermouli Equation
Continuity Equation
Navier-Stokes Equations
Conclusion
From the Paper
"Math is the language of science. The different disciplines of math relate to different areas of science. Science needs math in order to be understood. Algebra allows us to create sentences using numbers to describe an event. Geometry and Trigonometry help us to describe shapes, and Calculus is the tool for describing change. It can be a change in angles as in vector calculus, a change in rate, a change in speed, or almost any other change."
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Nuclear Radiation Shielding, 2002.
A detailed report of an experiment testing the shielding of radiation by various materials.
940 words (approx. 3.8 pages), 3 sources, MLA, $ 33.95
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Abstract
Discusses an experiment of the shielding of radiation. The experiment uses fluid flow measurements and the method of continuous flow to determine the coefficient of viscosity. Includes the calculations and results of the said experiment as well as diagrams. Discusses the conclusions and several human errors that happened when carrying out the experiment.
From the Paper
"There are two different ways water can flow this can be either streamline or turbulent. When a liquid has a streamline its particles flow in regular and smooth paths called streamlines. In this type of motion the viscous drag opposing the flow is proportional to the average velocity of the liquid. In turbulent flow, the particles have irregular motion therefore the viscous drag is proportional to the square of the velocity. "
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Auroras, 2002.
A definition of the natural phenomenon - auroras, otherwise known as "Northern Lights".
1,320 words (approx. 5.3 pages), 3 sources, APA, $ 44.95
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Abstract
The paper defines the term 'aurora' and explains what causes these luminous arcs and swirls of light to appear at different times during the year. It explains the difference between the auroras of the Northern and Southern Hemisphere and the effect that the sun, in the form of solar wind, has on auroras.
From the Paper
"One of the reasons that the auroras seem so mysterious to us is that they are a product of magnetism, which is a force that most of us are at least generally familiar with but one that is also, of course, invisible. Because both magnetism and the plasma field around the earth (which is simply a cluster or layer of charged particles) are invisible, we cannot see the physical underpinnings of the auroras, making them seem highly mysterious to us."
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Discoverers of the Physical Sciences, 2002.
A paper which discusses how the discoveries of 6 scientists overlapped and influenced one another.
1,800 words (approx. 7.2 pages), 9 sources, APA, $ 57.95
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Abstract
A paper which considers how the work of Kepler, Newton, Copernicus, Brahe, Ptolemy and Galileo overlapped, how one discovery influenced another and how the work of these scientists helped form the foundation of modern scientific knowledge of the physical sciences. The paper studies the life histories of each of these scientists.
From the Paper
"Galileo was appointed professor of mathematics at Padua, his duties included to teach the geometry of Elucid, and geocentric, astronomy to the medical students. However it is noted that he discussed more natural philosophy and forms of non standard astronomy, this was also carried out in a public lecture in reference to a New Star that had appeared, now known as Kepler's supernova. Galileo also wrote personally to Kepler stating that he was a follower of the Copernican theory, however there was no outward evidence of this until many years later (Field, 1995)."
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Solid Propulsion, 2000.
An essay outlining the history and modern use of solid propulsion in comparison to other types of propulsion.
1,145 words (approx. 4.6 pages), 1 source, MLA, $ 39.95
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Abstract
The following paper examines the history of solid propulsion and black powder and discusses how it was used. It also looks at the advantages and disadvantages of solid propulsion in relation to its liquid counterparts.
From the Paper
"The first solid propulsion engines were invented by the Chinese early in the 13th century in use of fireworks. These homemade rockets were propelled by black powder. The first recorded military use was in 1232 in a military siege where the powder propelled rockets were used to set fire to tents. It wasn?t until years later around the early 15th century when they started becoming used in Europe and equipped with a payload. Gunpowder started being used as it burned slower than black powder. The two have same the same ingredients but in different proportions. A large step forward was when the solid propulsion rockets were used to carry rope from distressed ships to shore in stormy conditions. The sailors would use the rope as a lifeline in their rowboats. However this relied on the fact that the shore could only be as far away as the longest rope."
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Engineering Experiment on Friction, 2002.
This paper tests the co-efficient of friction and how it differs when weight and surface type are changed.
1,000 words (approx. 4.0 pages), 5 sources, MLA, $ 35.95
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Abstract
The folowing paper aims to find the force required to move blocks of different weights across different surfaces, thus finding a value for friction and comparing the results with that of a textbook and recording any differences. The conclusion found in this paper is that friction is directly proportional to the weight force applied and is measured in terms of the coefficient of friction, represented by the Greek letter mu (m).
From the Paper
"The coefficient of friction is the ratio of the frictional force present and the normal reaction to the mating surfaces and is represented as,
m = Ff ? Rn
Rn = Normal reaction, weight force
Fn = Frictional force
But may also be worked out by dividing the force required in Kg by the weight of the object. Eg the force required to move a 25Kg object is 5Kg so to work out the coefficient of the object we would divide 5 by 25 to give a coefficient of 0.2.
Because of this the surface area of the block is independent to that of the coefficient and is not needed when determining a value for friction.
The coefficient of wood against wood is 0.35 giving a relatively low value for friction whereas rubber against concrete is 0.8 meaning it would be hard to slide rubber on concrete. The coefficient can be greatly reduced if a lubricant of some sort is applied in between the surfaces as it forms a layer preventing the bumps on the surfaces rubbing together making it easier to slide the objects past each other."
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Black Holes, 2002.
This paper presents a detailed look at black holes, providing the reader with a description of this phenomenon as well as evidence that it exists.
1,600 words (approx. 6.4 pages), 3 sources, MLA, $ 52.95
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Abstract
The following paper takes a look at the historical discovery of black holes, the current mindset about what they are and how they relate to the universe. The writer asserts that while the evidence is circumstantial at best, it is becoming more unified with each new discovery.
From the Paper
"Since the advent of science fiction the Black Hole theory has been used to add dimension and character to many books and movies. The space ships are sucked into Black Holes never to be heard from again, aliens are believed to emerge from them and they are used as portals to new universes according to fictional history. The use of the theory of Black Holes in fictional works is something that allows artistic license about what they are and what they aren't and what scientists believe at this point to be true."
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Marie Curie and Albert Einstein As Outsiders, 2002.
This paper studies the status of Marie Curie and Albert Einstein as outsiders and addresses the influence of this status on their scientific work.
1,130 words (approx. 4.5 pages), 0 sources, MLA, $ 39.95
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Abstract
The following paper examines how both Einstein and Curie were two geniuses of the world of science who were declared outsiders because there were great odds against their success. This paper looks at the way in which they managed to overcome all obstacles and dissolve all barriers to turn their dreams into reality. The way in which their persistence and perseverance in early life also helped them later in their scientific work, is also discussed.
From the Paper
"It has often been noticed that people who contribute much to a particular field are the ones who were either at some disadvantage in their early life or suffered from some obstacles that stopped them from entering the field. Yet these very people managed to overcome all odds to reach the place where they had dreamed of arriving and thus revolutionized the world in their own way. We see that extraordinary people all around us are the ones who were once considered even less than ordinary and were therefore barred from entering their chosen area of work. It was only after they managed to overcome the obstacles and through single-minded determination managed to bring revolution in their own sphere that the world was forced to take notice."
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Astronomy and the Young Universe, 2002.
A discussion of the argument about the young universe and the mature universe.
3,480 words (approx. 13.9 pages), 4 sources, MLA, $ 98.95
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Abstract
This paper discusses what the universe is made up of, its age, how stars are formed and what is the future of our solar system. It discusses the history of the exploration of the universe. The author explains how In this century large telescopes are set up, far away from city lights and traffic to gather the best data for studying the skies. A brief overview of the theories on the origin of the universe is also given. The author concludes that although new theories are constantly being proposed and science is constantly to answer the question ?Where did we come from?? , until now, no answer has satisfied everyone.
From the Paper
"Man's fascination with the heavens is as old as recorded history itself. Astronomers from all civilizations?medieval to the present times?carefully observed the stars and their relative position in the night sky. Even in the medieval times, astronomers universally observed two features: that stars tended to drift westward with each passing night; and, despite this apparent movement, stars were always in a fixed position relative to each other. Anything that man could not explain, ending up fascinating him?as did the stars. It has been stated that when man loses his desire to explore the unknown, the human race will have sounded its own death knell."
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Heat Transfer and the Space Shuttle, 2002.
This paper was written to explain the Thermal Protective Systems (TPS) of the space shuttle to a non-scientific audience.
3,270 words (approx. 13.1 pages), 12 sources, MLA, $ 93.95
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Abstract
This paper talks about the ways in which the shuttle is designed to overcome basic heat transfer problems during launch, orbit and re-entry. The main points in this paper are the active and passive systems in the TPS and the history of the shuttle design.
From the Paper
"10...9...8...Patiently the Space Shuttle waits on the launch pad...7...6... everything is in place...5...4... all functions are working properly...3... the conditions are comfortable on the coast of Florida, and the temperature is nice and warm...2...1... IGNITION! (Figure #1) The sudden burn of the rockets jolts the humongous craft to life. As streams of flame shoot out its lower portion, the craft begins to inch skyward. In no time its speed has increased, and it begins hurtling through the air towards its mission. While still inside Earth's atmosphere, the airflow over the Shuttle begins to warm the craft's surface, until it becomes "white hot." Then, the craft breaks free of the atmosphere's restraints, plunging into the freezing void of outer space. The Space Shuttle must be able to withstand these temperature extremes and still accomplish its mission objectives. After the mission, as the craft returns to Earth, it again encounters tremendously high temperatures as it re-enters Earth's atmosphere. The Shuttle encounters a lot of atmospheric resistance and slows itself down through this phase, then finally glides to a comfortable rest at Edwards Air Force Base in sunny Southern California, where the astronauts and craft must prepare to begin the process all over again. These intense hot and cold extremes drive scientists and design engineers as they work to control the internal temperature of the space shuttle throughout the various phases of its journey. They do this by using many creative systems such as specially designed tiles and radiator systems, to both reflect and radiate heat that would otherwise be dangerous to the craft and crew."
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Physical Theories to Account for Psi Phenomena, 2002.
An examination and discussion of different theories proposed to explain clairvoyance, precognition, psychokinesis and other psi phenomena including electromagnetic radiation and quantum theory.
1,055 words (approx. 4.2 pages), 4 sources, MLA, $ 37.95
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Abstract
The strengths and weakness of various theories including extremely low frequency (ELF) electromagnetic radiation waves and quantum theory as it applies to psi are discussed. Also examined are the problems of scientific paradigm shifts and the possibility that the statistical evidence for psi activity is an "anomaly" in our current paradigm and a precursor to a paradigm shift.
From the Paper
"Parapsychology occupies a unique position within the scientific realm. The results of the field are often considered invalid, fraudulent, or insignificant. Psi is often thought to be inconsistent with the current knowledge of physics. Despite the large body of statistical evidence for anomalous cognition, psi will not be widely accepted until a solid, testable physical theory is developed. Although the uncertainties and seemingly illogical consequences of quantum theory seem promising for the development of this sort of theory, as yet none exists."
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