| Papers [369-384] of 410 :: [Page 24 of 26] | | Go to page : <— 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 —> | |
|
|
Solar Cells, 2001.
A look at solar cells and the technology behind them.
1,210 words (approx. 4.8 pages), 5 sources, MLA, AU$ 51.95
»
Click here to show/hide summary
Abstract
This paper defines what solar cells are, how they are created and the technological history behind their development. It provides scientific theories to support this information and explains the uses of solar cells in today's technology.
From the Paper
"A solar cell is any device that directly converts the energy in light into electrical energy through the process of photovoltaics. Unlike batteries or fuel cells, solar cells do not utilize chemical reactions to produce electric power, and, unlike electric generators, they do not have any moving parts. Solar cells are also called solar batteries and, as the term solar implies, they are in most cases designed for converting sunlight into electrical energy.
"In the basic structure of a typical solar cell, light enters the device through a layer of material called the antireflection layer. The function of this layer is to trap the light falling on the solar cell and to promote the transmission of this light into the energy-conversion layers below. Such materials as silicon oxides or titanium dioxide are employed as the antireflection layer in solar cells."
| |
|
Magnets, 2001.
A comprehensive look at the science and theory behind magnets.
5,200 words (approx. 20.8 pages), 7 sources, APA, AU$ 161.95
»
Click here to show/hide summary
Abstract
This extensive paper looks at all aspects of magnets and their unique attraction. It explains the scientific logic behind this attraction, defines what is metals and why some metals can be metallic and some not; and also looks into "false magnets". The paper covers the history of this discovery and examines the North and South Pole's role. It finally looks at the use magnets serve in industry and technology today.
From the Paper
"Law of the nature is that positive attracts negative. God has created everything in pairs and examples of this pairing are found everywhere in nature. A lot of the human study and knowledge in different fields of science be it biology, chemistry, physics or mathematics revolves around the study of reciprocal pairs and their interactions. Some examples may be the masculine and feminine sex, acids and bases, positive and negative particles (i.e. electrons and protons at the atomic level), positive and negative charges (i.e. electrical charges running in wires transporting electric power) and some modern physics phenomenon such as gravitational and anti gravitational fields and matter and the theoretical anti matter. It seems that a lot of nature follows some very well cut out disciplines in orienting itself. There always seems to be some mysterious connections joining two forces that may seem to be independent of each other, but their behaviors charter similar formulae. "
| |
|
The Manhattan Project: The Building of the Atomic Bomb, 2002.
This research paper is a description of the progression of the Manhattan Project, the undercover name for the building of the first atomic bomb by scientists.
2,260 words (approx. 9.0 pages), 2 sources, MLA, AU$ 86.95
»
Click here to show/hide summary
Abstract
This is a detailed study describing the progression of the Manhattan Project and the invention of the atomic bomb. The ?Manhattan Project? was a code name given to the efforts and collaboration of many scientists to build the first atom bomb. The author sees two major challenges that faced the team of highly capable scientists. The first was the actual production of the atom bomb. This involved actually making innovative discoveries that would revolutionize war and change man?s idea of war for good. The second involved all of the ethical debates on whether or not the bomb should have actually been used in warfare. The author concludes that the building of the atomic bomb proved to be the most pivotal advance seen by science up until the early twentieth century.
From the Paper
"We have too many men of science, too few men of God. We have grasped the mystery of the atom and rejected the Sermon of the Mount...The world has achieved brilliance without wisdom, power without conscience. Ours is a world of nuclear giants and ethical infants. We know more about war than we know about peace, more about killing than we know about living...? stated General Omar N. Bradley, Chief of Staff of the United States Army in 1948, voicing the opinion, shared by many of the time, towards the building of the atomic bomb. The ?Manhattan Project? was a code name given to the efforts and collaboration of many scientists to build the first atom bomb. There were two major challenges that faced the team of highly capable scientists. The first was the actual production of the atom bomb. This involved actually making innovative discoveries that would revolutionize war and change man?s idea of war for good. The second involved all of the ethical debates on whether or not the bomb should have actually been used in warfare. The project lasted from 1942-1946 and cost approximately 1.8 billion dollars, which is comparable to 20 billion dollars today. The building of the atomic bomb proved to be the most pivotal advance seen by science up until the early twentieth century."
| |
|
The Human Tactic of Evolutionary Manipulation, 2000.
The ongoing discussion viewed through the lens of biotechnology about the meaning of evolution.
1,555 words (approx. 6.2 pages), 2 sources, AU$ 64.95
»
Click here to show/hide summary
Abstract
This paper explores the concept of evolution from a biotechnological point of view and the ongoing discussion amongst scholars. It looks at the article - Playing God in the Garden by Michael Pollan and explains why the epitomises the discussion of this topic.
From the Paper
"Some might say that human beings are, in large part, an arrogant species. Perhaps, they would suggest, we carry a general air of self-righteousness with respect to our relationship with the earth. It is a mien that evolves as we do. Our constantly developing sense of self, as well as the abilities to reason, implement social behavior and conduct intelligent thought processes, contributes directly to the superiority that we feel both as individuals and as a collective civilization. Whether this feeling of superiority is justified or not is a debate best left to another forum, however, the assumption of its credence has had a historically far-reaching effect on the world, perhaps an effect greater than any genuine substantiation to that assumption could engender. As a whole, we have taken the autonomy of global domination upon ourselves, and, rather than appealing to the practice of natural selection, we force the surrounding environments and species into an involuntary adaptation to our needs. As such, human evolution, and the demand it creates, affects change, or evolution in those environments and species. In the pursuit of our own survival, we have altered, and in some cases disturbed, the natural process of evolution in the plant and animal kingdoms in order to meet our own needs. Thusly, it can be deduced that a good majority of the unnatural evolution of certain environments and species can be directly attributed to the evolution of humanity. This is of crucial import when considering particular examples of natural response to human tampering as discussed in our text. In his account, "Playing God In the Garden", Michael Pollan provides insight to Steven Jay Gould's discussion on the definition of evolution, "What Does the Dreaded "E" Word Mean, Anyway?" by directly applying the questions of human evolution's predictability, directionality and, essentially, its relevance to its surrounding world."
| |
|
Complex Life on Earth: Cosmic Accident or Logic of Evolution?, 2001.
An analysis of the book "Rare Earth: Why Complex Life is Uncommon in the Universe."
1,655 words (approx. 6.6 pages), 5 sources, APA, AU$ 66.95
»
Click here to show/hide summary
Abstract
This paper takes a critical look at the book "Rare Earth: Why Complex Life is Uncommon in the Universe", by Peter Ward and Donald Brownlee. It discusses their theories of the beginning of life on Earth and additional theories to life on other planets. It challenges their research and data and offers other explanations and theories.
From the Paper
"Was the occurrence of complex life on the planet Earth an isolated event or simply the next logical step in evolution? Ward and Brownlee seem to believe complex life is unique to our home world or at least extremely scarce in the Universe.1 In addition to the factors in their Rare Earth equation, mentioned in their book are some specific factors peculiar to Earth that may have affected the development of complex life. Beginning with the planet Mars, W&B argue that the fossil record shows that the cooling Earth developed bacterial life as soon as conditions permitted. They suggest that this may be because the bacteria first developed on Mars, which cooled earlier, and that perhaps Earth was then seeded with these bacteria carried by meteorites reaching our planet after having been ejected from Mars by asteroid impacts. The low gravity of Mars makes this more likely, and it is estimated that ten percent of meteors ejected from Mars may impact Earth. A system lacking a Mars-like planetary companion might have been slower to develop bacterial life."
| |
|
Friedrich Bernhard Riemann, 2001.
This paper looks at the life and works of Friedrich Bernhard Riemann.
4,000 words (approx. 16.0 pages), 6 sources, AU$ 135.95
»
Click here to show/hide summary
Abstract
This paper examines the life and the work of the 19th century German mathematician Friedrich Bernhard Riemann, whose ideas concerning geometry of space had a profound effect on the development of modern theoretical physics, including providing the foundation for the concepts and methods used later in relativity theory.
From the paper:
"An examination of the facts of Riemann?s family background would not have led one to suspect that he would have become the great mathematician that he would develoo into. He was the second of six children of a Lutheran pastor and it was this pastor/father who gave him his first formal education. Indeed, much of his early education was centered in his family, which was by all accounts both happy and deeply devout. He later attended the local high school, where he made quick and substantial progress in mathematics, soon moving beyond the ability of his teachers to educate him further (Laugwitz 38-41). He quickly mastered calculus and theory of numbers of Adrien-Marie Legendre. After graduating from the high school (or gymnasium), he studied at the universities of G?ttingen and Berlin from 1846-51. It was at this point in his education that he became interested in problems concerning the theory of prime numbers, elliptic functions, and geometry, theoretical interests that would guide much of his later work."
| |
|
Einstein, 2001.
This paper looks at the life and works of Albert Einstein.
1,600 words (approx. 6.4 pages), 5 sources, AU$ 65.95
»
Click here to show/hide summary
Abstract
This paper examines in brief the life of this great thinker- his childhood, upbringing and education. It also looks at his scientific contributions and the significant and continuing ways that he has influenced European thought along with American.
From the paper:
"Einstein?s efforts in behalf of social causes have sometimes been viewed as unrealistic. In fact, his proposals were always carefully thought out. Like his scientific theories, they were motivated by sound intuition based on a shrewd and careful assessment of evidence and observation. Although Einstein gave much of himself to political and social causes, science always came first, because, he often said, only the discovery of the nature of the universe would have lasting meaning"
| |
|
The Electric and Magnetic Sense of Animals, 2002.
This paper explores the different magnetic and electric properties that some animals posses.
1,810 words (approx. 7.2 pages), 11 sources, AU$ 73.95
»
Click here to show/hide summary
Abstract
This paper explores animals' abilities to sense electricity and magnetism and their ability to use these qualities as part of their sensory machinery. The author examines the type of electrical energy that certain animals release and provides examples.
From the paper:
"Imagine what it would be like if you were able to sense electric and magnetic fields. You would be able predict when a bad lightning storm was coming and orient yourself in the right direction if you were lost in the woods. Although such abilities only exist in fantasy for humans, many animals? posses these abilities in real life. In this paper we will explore the fascinating ability of certain animals to use electricity and magnetism as part of their sensory machinery."
| |
|
The History of Rocketry, 1999.
The history of rocketry from concept to modern day space travel. Researches the rocket engine's international development and significance in the space program.
2,940 words (approx. 11.8 pages), 4 sources, AU$ 107.95
»
Click here to show/hide summary
Abstract
This research paper investigates the science of rocketry starting with the original concept, up to the present day space program. Developments in Germany, Russia, and the U.S. are detailed, along with the ways in which rockets have been used both on earth and in space. Most of the paper will deal with the development of the rocket engine up to its present day standards and its history in space flight.
From the paper:
"The notion of flying has fascinated people since the beginning of history, and most likely since the beginning of time. With the development of astronomy, man shifted that dream to another realm: outer space. Robert H. Goddard, a physicist of the early 1900?s, once told a story in his autobiography of how he was inspired to follow the dream of space flight. He recalls once when he was 17 years old; he was trimming branches in a cherry tree, and looked out at the sprawling country landscape. He imagined how fabulous it would be to soar upward into space, watching the earth receding below him. ?I was a different boy when I descended the ladder,? Goddard states, ?Life had now a purpose for me.?
| |
|
Lightning and Electricity, 2000.
This paper examines the scientific discoveries dealing with electricity.
1,700 words (approx. 6.8 pages), 9 sources, AU$ 69.95
»
Click here to show/hide summary
Abstract
This paper presents in chronological order the study of lightning and how as new ideas would come about and be proven, other inventors would use that idea and take it into a new direction.
From the Paper
"Lightning is a form of static electricity. When it is raining, raindrops can acquire extra electrons. These negatively charged raindrops seek out the positively charged ground. When these two charges connect, current flows through randomly placed areas of charged particles. This is what lightning is, and what gives it the jagged pattern (see diagram). Lightning has been on Earth longer than people have. Still we don?t know everything about it. We do know that lightning can take a variety of forms. The most common are forked, streak, ribbon, or bead lightning. All of these types are essentially the same with variations on atmospheric conditions. There is one type called ball lightning, but very little is known about this type. It is also known that lightning will travel from cloud to cloud, cloud to ground, and ground to cloud. Early studies done to find that lightning is electricity paved the way for several other important findings about electricity and how it behaves."
| |
|
Nuclear Energy: Failed Source of Energy, 2002.
This paper explains how the United States' nuclear power program failed.
2,770 words (approx. 11.1 pages), 5 sources, AU$ 102.95
»
Click here to show/hide summary
Abstract
This paper explains the reasons behind the halt in nuclear power plant construction in the United States. Factors in the decline of nuclear power plants include raising costs, disposal of nuclear waste, concern for safety, declining public opinion and governmental programs and decisions not favorable to the nuclear power industry. Footnotes.
From the Paper
"After a period of rapid growth in the nuclear power industry, resulting in over a hundred nuclear power plants being constructed in the United States alone, in the early 1970?s the industry began to slow and even began to decline in the 1980?s, while the rest of the world continued to increase their nuclear industry capacity. In the mid-1970?s the Atomic Energy Commission predicated that by the year 2000 there would be more than 1,000 nuclear power plants in the United States.[1] No new nuclear power plants have been ordered in the United States since 1973 and several plants have gone off-line since.[2] Between 1990 and 1995, 20 additional nuclear power plants came online outside of the United States, with an additional 36 under construction. Furthermore, Robert Newman, the President of ABB Combustion Engineering Nuclear Systems, in a October 6, 1996 New York Times article suggested that his company had been approached by the government of China with a plan to build as many as 150 nuclear power plants over the next 40 years.[3] Currently, there are over 437 nuclear power plants operating around the world.[4] Hence, while the rest of the world is increasing their dependence on nuclear power, the question becomes, why is the Untied States making a rapid reversal in its dependence on nuclear power? Several tangible factors have been suggested: the rising costs of construction of a nuclear power plant, the increase in time that it takes to construct a nuclear power plant, the disposal of low grade and high grade nuclear waste, public safety of living near a nuclear power plant, declining public support for nuclear power, and the fear of nuclear power plants contributing to the proliferation of nuclear weapons around the world."
| |
|
Mining the Past for Futuristic Ideas, 2001.
A discussion on the technological challenges in developing a hot air balloon.
1,005 words (approx. 4.0 pages), 1 source, AU$ 44.95
»
Click here to show/hide summary
Abstract
This paper reviews an article about overcoming technological difficulties in the field of hot-air ballooning. The solution hit upon by designers and had its roots in the world?s first air disaster ? a good idea poorly executed. The implication for the future is that we should look backwards as well as forward when solving difficult problems.
From the Paper
"People are flying around the world for the fun of it. They are described as sportsmen and adventurers, but at least in one way they have also been visionaries. Perhaps in other endeavors we should continue to look forward as well as back, and examine ideas that didn?t work and were perhaps discarded. There may be some excellent ideas that when reworked can move modern technology ahead. What we think of as a ?bad idea? may have some useful ideas within it. "
| |
|
Atomists, 2001.
This is a paper on the Atomists of the Greek era and their concept of Atoms and matter.
300 words (approx. 1.2 pages), 1 source, AU$ 21.95
»
Click here to show/hide summary
Abstract
This is a paper on the Atomists of the Greek era and their concept of Atoms and matter.
From the Paper
The notion that atoms make up matter was popular amongst the Greek civilization and through this notion comes the theory of the atomists. Democritus of Abdera (ca. 410 BCE) put forward the atomic hypothesis according to which matter can be divided until a point after which only the atoms remain.
| |
|
Effects of Weightlessness, 2001.
A scientific research of the gravity and weightlessness of humans in space.
1,020 words (approx. 4.1 pages), 1 source, AU$ 45.95
»
Click here to show/hide summary
Abstract
This is a paper that summarizes the observations of journalist, Glenn Zorpette, who accompanied engineering majors from the University of Alabama at Birmingham (UAB) who studied heat convection in artificial gravity by building a spinning assembly that produces centrifugal force in a test cell.
From the Paper
"The scientific research was conducted in the National Aeronautics and Space Administration's world-renowned Vomit Comet, a KC-135A aircraft that is flown so as to provide weightlessness in 25-second snippets. The plane is usually used for research conducted on a professional basis but undergraduate students are allowed to make use of the plane and conduct studies related to weightlessness. "
| |
|
Albert Einstein, 1999.
This paper is a brief biography on Einstein's achievements.
1,050 words (approx. 4.2 pages), 3 sources, AU$ 45.95
»
Click here to show/hide summary
Abstract
This paper explains how if it were not for Albert Einstein the world would be a lot different today as his discoveries and theories lead the way for physicists.
From the Paper
"When ever the phrase great mind or genius is mentioned usually one name comes to mind, and this name is Albert Einstein. This is so, because Einstein may very well have been the greatest mind of the twentieth century. Einstein revolutionized modern scientific thinking and was a master of physics and mathematics. From an early age Einstein showed skills and interests rare among others his age. From the beginning Einstein was destined for something special."
| |
|
The Mystery of Black Holes, 2002.
A detailed analysis of black holes: what they are and how they are formed.
1,725 words (approx. 6.9 pages), 3 sources, AU$ 69.95
»
Click here to show/hide summary
Abstract
This is an informative paper on what exactly a black hole is and what scientists have theorized about black holes. The paper examines the formation of black holes, past research on black holes and pondering questions still unanswered today.
From the Paper
"Ever since you were old enough to know what the sky, moon and stars were, you have always imagined what is actually up there? One of the most fascinating ideas of all is the mysterious and scary thought of a BLACK HOLE! This is perfectly normal because even today scientists are still pondering over that same question ? what is a black hole and does it exist? Theories that at one time seemed reasonable are now laughed at, our skies hold an infinite space which we will never be able to explore, as a result, our questions will be infinite as well."
|
|
|
