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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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Galileo Galilei, 2001.
This paper is about Galileo Galilei and his impact on history.
950 words (approx. 3.8 pages), 2 sources, MLA, $ 33.95
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Abstract
This paper details how Galileo Galilei affected history by discovering the potential of the telescope, pioneering new approaches to science, and challenging the authority of the Catholic Church.
From the Paper
"Galileo Galilei was a mathematician, an astronomer, and a physicist who made several significant contributions to modern scientific thought. During his life, he made many scientific discoveries, often in contradiction with the centuries-old ideas of the Greek philosopher Aristotle. These contradictions led to great conflict with the Catholic Church; however, he emerged as a symbol to others who oppose unyielding authority and champion scientific progress. As James Reston?s biography Galileo makes clear, Galileo is a historical figure who affected history by discovering the potential of the telescope, pioneering new approaches to science, and challenging the authority of the Catholic Church."
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Antimatter, 2002.
A basic technical outline on antimatter - a substance matter found in the universe.
1,095 words (approx. 4.4 pages), 29 sources, MLA, $ 38.95
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Abstract
A explanation of what antimatter is, where it originated, what its uses are and how much energy it can produce. It looks at the benefits of this matter.
From the Paper
"Antimatter is a rare substance that at one time was abundant in our universe. Antimatter is relatively simple, consisting of the same parts that make up the elements in our planet. The only difference is: an atom of antimatter is a ?mirror image? of a regular atom. Antimatter and normal matter both have neutrons, which make up a good portion of the mass of the nucleus. Normal atoms have negatively charged electrons which encircle the nucleus, and they also help to determine the charge of the atom. In Antimatter, those ?electrons? do not exist, they are called ?antielectrons?, sometimes known as ?positrons?, and they have a positive charge. The Protons of in a normal nucleus are also different in an atom of antimatter. They are called ?Antiprotons?, and have a negative charge."
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The Development of Nuclear Fusion Reactors, 2001.
This paper tries to externalize the feasibility and optimality of the development of a nuclear fusion reactor as a source of energy for future consumption.
2,760 words (approx. 11.0 pages), 10 sources, MLA, $ 82.95
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Abstract
This paper discusses the inevitable need for developing alternative sources of energy in order to bridge the gap between the rapidly increasing fuel demand and the depleting resources available. This paper tries to analyze the potentials of nuclear fusion reactors as a reliable alternative to overcome this energy crisis. Though the theories propounded are still in the state of infancy, they hold relevance for satisfying the fuel demand in the future in both on earth as well in space stations. Fusion, explains the author, is a source of the sun?s energy that offers a clean, potentially limitless source of electricity and power. Hence a magnetic fusion reactor by using plasma would manage to bring about the nuclear fusion reaction in a controlled way.The author shows how plasmais a new state of matter in which most of the atoms are ionized due to some sort of 'violence' and breaking away of the originally bound electrons. Within the plasma, colliding deuterium and tritium nuclei fuse into helium nuclei and release energy to be converted into electricity.
From the Paper
"The concept of generation of usable energy from the nuclear fusion reactor is still at its state of infancy. Though both Bose and Einstein , in 1925 predicted the condensation of atoms into super dense states but still even after 76 years of extensive research the idea of a nuclear fusion reactor has not been physically implementable. Though nuclear fusion is the primary governing factor in the nuclear reactor design but a number of complex systems and their analysis need to be incorporated for its success. Currently, a number of significant projects are being pursued individually by the developed nations like the SST project, the Magnetic Mirror project and the combined efforts of scientists and governments from all over the world pooling their intelligence and resources to develop the International Thermonuclear Experimental Reactor (ITER)."
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A Call for Safer Methods of Nuclear Waste Disposal, 2001.
A call to action for safer methods of disposal of nuclear waste and other radioactive material.
665 words (approx. 2.7 pages), 4 sources, MLA, $ 23.95
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Abstract
An argumentative paper, exploring the chemical make up of uranium, showing that it is extremely difficult to dispose of this material in a complete way. It looks at current disposal practices in the world and analyzes their pros and cons.
From the Paper
"Radioactive material is defined as having atoms with extremely excited outer electron shells. This makes them unstable, excitable and an efficient means of providing energy to a population that can afford a nuclear power plant. The main source of this energy is Uranium. This is a naturally occurring element found in rocks and seawater. It is the most heavy element in the periodic table, having 146 neutrons and 92 protons in its stable form. The instable form has 143 neutrons and this is the kind that is used in cores to create energy (UIC website)."
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The Life of Alessandro Volta, 2001.
This paper gives an autobiographical account of the life of the famous Italian scientist Allesandro Volta.
1,550 words (approx. 6.2 pages), 2 sources, MLA, $ 50.95
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Abstract
This paper studies the great Italian scientist and inventor of the electric motor, Alessandro Giuseppe Antonio Anastasio Volta, who is considered among the pioneers of the modern science. It includes an historical overview of his life and his greatest inventions including: Electrophorus, isolating the compound methane and many gadgets. It discusses his many contributions to the scientific world as well as the recognition and rewards he received for them.
From the Paper
"Though the invention of Electrophorus was a huge success for Volta but his continuous research work brought several other successes to him. He became the first person to isolate the compound methane in the year 1778. His journey of success continued as he accepted a proposal to work as a professor at the University of Pavia in 1779. In the meantime he continued his research in the field and made several other inventions such as gadgets which were invented on the basis of the principles of static electricity. Because of his great inventions and high contribution in the field of electricity he was awarded the Copley Medal of the Royal Society in 1791. His works were not restricted to static electricity but he also worked in the area of dynamic electricity. His works in the area of dynamic were primarily an idea derived from the results of the experiments conducted by Galvani, who was a friend of Volta."
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