Science Essays
4,476 Science Free Papers: 421 - 450
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Asthma: Disease of the Respiratory System
Asthma: Disease of the respiratory system Breathing, the act of inhaling and exhaling of air. Oddly enough this process is an absolute necessity for life and yet we do not control it. There are two systems involved in our ability to breathe one is the parasympathetic nervous system and the
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Asthma: The Causes and Symptoms
Asthma: The Causes and Symptoms Asthma is a disorder of the respiratory system in which the passages of the lung periodically narrow, causing coughing, wheezing, and shortness of breath. When Henry was little he was diagnosed with asthma. Now carries an inhaler with him to help keep him from having
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Astrobiology - the Potential for Extraterrestrial Life
Astrobiology: The Potential for Extraterrestrial Life Michael Russo Professor Nieter Science Inquiry: Geoscience Introduction Astrobiology is the area of study dealing with alien life, the likelihood of finding it, where it might be found, how it evolved, its morphology, its culture, etc. It's a huge field that overlaps all
Rating:Essay Length: 2,827 Words / 12 Pages -
Astronomical Terms & Models
Models: 1. The Milky Way Galaxy (Top & Side Views) a. Know location regions for Pop I and Pop II stars b. Size of Milky Way is roughly 100-120 thousand light years c. 3 spiral arms i. Earth is located on the far end of the middle upper arm ii.
Rating:Essay Length: 1,722 Words / 7 Pages -
Astronomy
Space exploration has been going on since the 1960s. Both women and men have traveled in space. Every day we are discovering different things about space from satellites and astronauts, and every day more people are landing on the moon. The first human, the first animal, and the first spacecraft
Rating:Essay Length: 1,274 Words / 6 Pages -
Astronomy
Astronomy 162 1. With for example a prism you can break light up into its separate colors, in a so-called spectrum. When astronomers did this to the light of stars, they found that the stars weren't all the same. Some had more blue light, and others had more red
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Astronomy
Introduction On a clear summer night in the country, the stars illuminate the sky seemingly by the billions. Children and even some adults watch for shooting stars to rip through the night and grant them their ever wishes. From the moon to the stars, to the distant planets, this in
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Astronomy Term Assignment
The belief that solar variation can be correlated to recent global warming trends has become a highly debated topic in the scientific community. By comparing and charting historical sunspot data with climate models as well as recorded data, it has become the belief of many scientists that the increase in
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Astronomy, Why Is the Sky Dark
"Why is the night sky dark?"(Hienrich) For thousands of years this question, also known as Olber's paradox, has been asked. Astronomers are constantly growing closer to the answer but still no one has yet found a finite answer. As scientists relentlessly collect data hoping to find some clue as
Rating:Essay Length: 541 Words / 3 Pages -
Asymmetrical Plasticity of an Intertidal Snail
Asymetrical developmental Plasticity in an Intertidal Snail The author of this research was Ron J. Etter. The Nucella Lapilus is a gastropod that resides on both sides of the North Atlanic. In the eastern North Atlantic it extends from Cape St. Vincent in Portugal to Novaya Zemlya. In the Western
Rating:Essay Length: 609 Words / 3 Pages -
At Death Our Bodies Should Not Be Considered Public Property
Public Property Property owned by the government or one of its agencies, divisions, or entities. Commonly a reference to parks, playgrounds, streets, sidewalks, schools, libraries and other property regularly used by the general public. The Human Tissue Act 2004 The current law regarding the use of any tissue or organ
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Athelete Blind Spot Test
Abstract Everyone has a blind spot in the visual field caused by an absence of nerves on the retinal wall where the nerve ganglia enter. Our brains "correct" this blind spot by filling-in the missing information so that we do not notice the blind spot in normal, daily activity. There
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Atherosclerosis
One of the foremost leaders of mortality in the US is coronary artery disease (CAD). Atherosclerosis is an abnormal thickening and hardening of the arterial walls caused by fat and fibrin deposits. It is a form of arteriosclerosis, which is the actual thickening, hardening, and loss of elasticity of arterial
Rating:Essay Length: 1,331 Words / 6 Pages -
Atherosclerosis: The Silent Killer
Atherosclerosis: The Silent Killer Atherosclerosis is one of a group of health problems that define coronary artery disease, oftentimes referred to as heart disease. Atherosclerosis is the leading cause of heart disease in the United States. The following is the definition provided by the American Heart Association: Atherosclerosis (ath"er-o-skleh-RO'sis) comes
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Atlanta Takes Part in Multiple Efforts to Improve Air Quality and Commuting
The population of Metro Atlanta has more than doubled since 1982, bringing the estimated total of residents to more than three million. Atlanta, being the hub city of the South Eastern United States, is facing many air pollution and traffic congestion problems due to the number of people driving
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Atmospheric Pollutants
1.Gases in The Air Sources of Sulfur Dioxide There a diverse range of natural sources of sulfur dioxide in the atmosphere such as from volcanic gases: S(s) + O2(g) ( SO2 (g), geysers and combustion of organic matter in bushfires. Also, anaerobic bacteria in poor aerated soil oxidize H2S to
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Atomic Bomb
Atomic bombs were the first nuclear weapons to be developed, tested, and used. In the late 1930s physicists in Europe and the United States realized that the fission of uranium could be used to create an extremely powerful explosive weapon. In August 1939, German American physicist Albert Einstein sent a
Rating:Essay Length: 412 Words / 2 Pages -
Atomic Bomb
Herbert Feis served as the Special Consultant to three Secretaries of War. This book was his finale to a series on the governmental viewed history of World War II, one of these receiving the Pulitzer Prize. Mr. Feis gives personal accounts in a strictly factual description leaving out no
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Atomic Bomb
The Atomic Bomb 1939-1945 In 1942, The first atomic pile, a sustained controllable nuclear chain reaction, came online in Chicago. Scientist and inventor Enrico Fermi remarked, "This will be remembered as the darkest day in history," referring to both the atomic pile and that day's announcement of Nazi death camps
Rating:Essay Length: 427 Words / 2 Pages -
Atomic Bombing
Nuclear war was brought about through the invention of the atomic bomb. The atomic bomb was first thought of in 1939. The Manhattan Project was devoted to researching and constructing the bomb (Serendipity: Manhattan Project para.1). Six years and 2 billion dollars later the Manhattan Project produced the first atomic
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Atomic Case
Story ideas A planet has many centient spiecies, it is just one of thousands within a galaxy, then considering more galaxies than is possible for a physical mind to contemplate making up a universe. There are an infinite number of universes. Multiplying an infinite number of universe by the eleven
Rating:Essay Length: 286 Words / 2 Pages -
Atomic Spectra
Prian Jani Heli Desai, Janni Patel Formal Atomic Spectra Report C125 Experimental Chemistry I Section 18927 IUPUI March 18th 2007 ATOMIC SPECTRA INTRODUCTION The study of interaction between light and an object is known as spectroscopic studies. A major factor in understanding the structure of atoms and molecules, and going
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Atomic Spectra Paper - Alternate Assignment
Atomic Spectra Paper - Alternate Assignment For the past few weeks, the class has been studying Chapter Five of our textbooks which consists of Electrons in Atoms. We broke down into small groups and we each created a "cell-phone spectrometer" in order for us to fully understand the information given
Rating:Essay Length: 914 Words / 4 Pages -
Atp as a Source of Energy for Periplasmic Permease in the Membrane Transport Systems
The many components of cells are separated by membrane bound compartments such as periplasm, inner membrane and cytoplasm. Molecules may cross these membranes by simple or facilitated diffusion; however, active transport with ATP is required to drive the transport of large, highly charged and highly hydrophobic molecules against their concentration
Rating:Essay Length: 656 Words / 3 Pages -
Attacked the French Colonists
In November 29, 1729, the Natchez people attacked the French colonists. It was cruel and catastrophic. This was because the Natchez people and the French people used to live together in the Louisiana Colony for more than decade prior to the incident. The Natchez Massacre or the Natchez revolt occurred
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Attenbourough Specials December 30, 2006
Last December 30, 2006, Attenborough presented different kinds of animals on how they adapt to survive in their environment. On top of the list is the Barbarusa animal. They live in relatively small groups, eating bits and pieces of food. The Barbarusas are attracted to clay because it neutralizes their
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Attention Deficit Hyperactivity Disorder
"ADHD (Attention Deficit Hyperactivity Disorder) is like living in a fast moving kaleidoscope where sounds, images and thoughts are constantly shifting." (NIMH-ADHD) ADHD can be very frustrating and difficult for children. Medication and treatment are available and have been proven effective. Parents can also get frustrated and they could
Rating:Essay Length: 1,431 Words / 6 Pages -
Attention Deficit Hyperactivity Disorder
Attention Deficit Hyperactivity Disorder (ADHD) Attention Deficit Hyperactivity Disorder (ADHD) or Attention Deficit Disorder without the Hyperactivity (ADD) is a condition of the brain that makes it difficult for children to control their behavior in school and social settings. This condition is also called by various names: hyperactivity, minimal brain
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Attention Deficit Hyperactivity Disorder
Attention Deficit Hyperactivity Disorder (ADHD) is a condition that becomes apparent in some children in the preschool and early school years. It is hard for these children to control their behavior and/or pay attention. It is estimated that between 3 and 5 percent of children have ADHD, or approximately
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Attention Deficit Hyperactivity Disorder
Attention deficit hyperactivity disorder (ADHD) is a behavioral disorder that is typified by distractibility, inability to sit still, restlessness, and difficulty concentrating on one thing for any period of time. ADHD generally occurs in children; however a rising amount of adults are being diagnosed with the disorder. In the United
Rating:Essay Length: 1,841 Words / 8 Pages