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Optics Study Report
Optics Study Report
3 pages (750 words) , Download 0 , Essay
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Several theoretical and experimental studies have been undertaken to investigate the feedback systems or random lasers, using semi-conductor powder and other organic materials (Marouf and Zekri, 1661). The difference between the conventional laser and the random laser has been identified in their feedback mechanisms, where the conventional laser applies a system of gain medium and cavity to give a feedback.
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Devils Tower National Monument
Devil's Tower National Monument
6 pages (1500 words) , Research Paper
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This monolithic monument is famous for its spectacular columnar jointing. This geological feature has a height of 1,267 feet above the surrounding terrain and 1,546 meters above the mean sea level. This is world renowned landmark of the northern Great Plains (Britton & Tamara, 4).
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Saturns Moon Titan: A World with Rivers,Lakes, and Possibly Even Life
Saturns Moon Titan: A World with Rivers,Lakes, and Possibly Even Life
10 pages (2500 words) , Movie Review
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This paper talks about the findings of this mission through a lecture conducted by Dr. Chris McKay. The Speaker Dr. Chris McKay is a planetary scientist at the NASA Ames Research Center. Most of his research focuses on the search for life in the solar system and the evolution of the solar system.
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Environmental Issues and the Industrial Revolution
Environmental Issues and the Industrial Revolution
4 pages (1000 words) , Essay
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The Industrial Revolution only focused on the development phase; spotlights were not on the industrial waste and its effects on the environment. Hence, neglecting such a problem is the reason why the world these days is facing several environmental tribulations due to which human lives are at risk.
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Kinetic Theory of Matter
Kinetic Theory of Matter
3 pages (750 words) , Download 0 , Essay
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This particular energy can be measured through the temperature of that matter (whether it is in gas, liquid or solid form) or stated differently, the hotness or coldness of matter can known by measuring its temperature.
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Relationship between heat and temperature
Relationship between heat and temperature
4 pages (1000 words) , Essay
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This paper also explains the transitional state of matter from solids to liquid, then to gas and the energy involved to break the bond. The result of this work finally gives an insight of how heat transfer relies on temperature variation to move from a source or a region of high to lower concentration.
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Wind Energy in India
Wind Energy in India
4 pages (1000 words) , Essay
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Wind Energy in India. Natural gases have been the biggest, if not the only, source of energy for a majority of people in the world. As a result, humankind has relied on nonrenewable sources of energy to meet their energy requirement needs. However, overreliance on natural gases has seen the world witness the continued depletion of this essential commodity as the world’s natural energy resources diminish at an alarming rate.
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Summarization for saven chapters
Summarization for saven chapters
3 pages (750 words) , Essay
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Chlorofluorocarbons commonly referred to as CFCs were first discovered in laboratory experiments during the 1830’s and they were later discovered in nature by the year 1850. The amount of ozone in the earth’s atmosphere is measured in Dobson units. Over the years, the ozone levels in the earth have been reducing drastically from a high of 320 Dobson units in 1955 over the Antarctic to lows of 90 Dobson units in 1995.This reduction has mainly been attributed to manmade chemical pollutants.
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See the topic on the file that i send u
See the topic on the file that i send u
4 pages (1000 words) , Essay
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MRI scanners are widely available in clinical routine diagnostics (Vittinghoff 2012, 45). Nevertheless, increased signal intensity changes due to higher field strength thus emphasizing on the efficacy of lofty field concentration within the medical locales.
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Scanning Electron Microscopy
Scanning Electron Microscopy
15 pages (3750 words) , Coursework
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The above micrographs represent a Secondary electron image (SE) and a Backscatter electron image (BSE) of the same region of an asbestos sample.The SE image appears more three dimensional than the BSE image. The cluster of fibers at the center in the SE image appears more rounded, while the one in the BSE appears flat.
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Electron Microscopy
Electron Microscopy
21 pages (5000 words) , Coursework
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Images in TEM are obtained by focusing an electron beam on the specimen. The electrons are absorbed, transmitted, scattered or backscattered. Depending on the kind of image required by the operator, either the transmitted electrons (called direct beam) or the scattered electrons (called diffracted beam) is selected. 
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Magnetisation Behaviour of Transition Metals and Ferrites
Magnetisation Behaviour of Transition Metals and Ferrites
35 pages (8750 words) , Dissertation
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Within this dissertation, an examinatio of ferro-, ferri-, and paramagnetic fields and how they all behave distinctly and how the level of magnetism of an object can be measured using a superconducting quantum interfering device (SQUID), the Magnetic Optical Kerr Effect (MOKE), or a Vibrating Sample Magnetometer (VSM) will be examined.
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Correlation of the light scattering properties of transparent conducting oxides to PV efficiency
Correlation of the light scattering properties of transparent conducting oxides to PV efficiency
24 pages (6000 words) , Dissertation
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For sample 238, the transmission is directly proportion to the wavelength of the projected light. As the wavelength increases, the percentage transmission increases but a rapid increase in the percentage transmission can be seen by the projection of light from wave length of 455nm to 627nm.
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Year 2012: Fact or Fiction
Year 2012: Fact or Fiction
14 pages (3500 words) , Research Paper
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The Mayan prophecy states that many devastating events will occur in December 2012 at a certain time that will lead to the destruction of the earth. On one hand, the astronomical knowledge of this ancient meso-american civilization is known to be far ahead of their times.
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Electromagnetism and Mind Control
Electromagnetism and Mind Control
10 pages (2500 words) , Essay
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Electromagnetic waves comprise of an amalgamation of oscillating electrical and magnetic fields, perpendicular to each other. This is complicated to visualize, however, the waveform has similar distinctiveness of other types of waves (Evans 34).The creation and detection of the wave and its impact on the mind depend on the range of wavelengths.
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Global Warming: Causes, Effects and the Future
Global Warming: Causes, Effects and the Future
10 pages (2500 words) , Download 2 , Research Paper
Many environmental activists have provided how the global warming is going to affect the environment, as they have all come to the same conclusion about the fact that the global warming is really going to affect the earthly environment, where the extent of its harmfulness will keep increasing with due respect of time.
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The Impact of Fruit Juices on the Dental Erosion in Human Tooth Enamel
The Impact of Fruit Juices on the Dental Erosion in Human Tooth Enamel
10 pages (2500 words) , Research Paper
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The changing lifestyle pattern of human beings which incorporates consumption of acidic substances like soft drinks and fruit juices has been a major contributor for the development and progression of dental erosion. Immense research in this field has strongly indicated a definite connection between the role of fruit juices and soft drinks and the development of dental erosion.
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The international space station. Major Components
The international space station. Major Components
10 pages (2500 words) , Essay
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The US launched its first satellite Explorer I in 1958, soon after the Soviet Sputnik in 1957. This was the start of space race. The race is in the Cold War era when both nations strived for supremacy in every field. The period was a set of high tension incidents without direct military action.
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Factors affecting quality of MRI image.Benefits of circular or square spiral EPI methods
Factors affecting quality of MRI image.Benefits of circular or square spiral EPI methods
10 pages (2500 words) , Essay
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Accurate image reconstruction depends on resonance frequency (rf) of a spin, which is achieved by strong homogenous external field and superposition of a spatially linear gradient. If these conditions are not met, then the relative positions of anatomical structures will be misrepresented in the reconstructed MRI image.
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Modelling of optical parameters for optimum collection of concentrated solar radiation for photovoltaic devices
Modelling of optical parameters for optimum collection of concentrated solar radiation for photovoltaic devices
15 pages (3750 words) , Dissertation
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Innovative ideas have come out to save the earth from destruction of its ozone layer. World population is expected to increase by about 10 billion by year 2050 and if electricity demands are not programmed by now, there will surely be insurmountable problems for the people and the deterioration of the environment will exacerbate.
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Theoretical review in optical materials used in Concentrating Photovoltanic (CPV) Technology
Theoretical review in optical materials used in Concentrating Photovoltanic (CPV) Technology
21 pages (5250 words) , Dissertation
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Theoretical Review of Optical Materials used in Concentrating Photovoltaic (CPV) Technology. Solar cells produce electrical current in direct proportion to the amount of solar radiation falling on them. By increasing the intensity of solar radiation, it is possible to significantly increase the efficiency of electricity production by these cells.
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Echo Planar Imaging, or EPI, Fast Imaging Techniques (MRI)
Echo Planar Imaging, or EPI, Fast Imaging Techniques (MRI)
15 pages (3750 words) , Essay
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EPI is a fast, flexible imaging method, with good contrast and resolution, and with many potential applications in clinical imaging, such as functional MRI and rapid entire brain imaging. Though, EPI can be very unforgiving and requires careful parameter selection (Weishaupt, Koechli and Marincek, 2008).
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Investigation and previous work on optical and thermal measurements in transparent materials
Investigation and previous work on optical and thermal measurements in transparent materials
16 pages (4000 words) , Dissertation
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Therefore, this chapter details previous studies on the optical and thermal analysis of optical materials. The basics of ray tracing, optical features and thermal analysis are described first, followed by a discussion on previous investigations on optical, thermal and physical properties of glasses and polymeric materials such as polymethyl methacrylate (PMMA).
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Echo Planar Imaging, or EPI, Fast Imaging Techniques (MRI)
Echo Planar Imaging, or EPI, Fast Imaging Techniques (MRI)
10 pages (2500 words) , Essay
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Introduction Magnetic susceptibility refers to the process y issue tissue affects magnetic field. The existing boundaries between fat and compact bone are normally affected by the transverse magnetic field de-phasing and signal distortion. The consequent of the above is that frequency positions in the wrong location in the phase direction.
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The Second Law of Thermodynamics
The Second Law of Thermodynamics
9 pages (2250 words) , Term Paper
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In the second law of thermodynamics, when complex systems undergo a certain change, then the system will either maintain their current order or decrease their order. This means that a change in a system cannot increase the order of the system. This principle can be well applied in our day to day life.
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Magnetic Geophysical Method
Magnetic Geophysical Method
12 pages (3000 words) , Essay
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The magnetic geophysical method is a scientific approach that is used to measure variations or anomalies that are localized and small in the magnetic field of the earth. Materials found on the surface of the earth such as the basic igneous rocks, and the ore magnetic bodies are helpful when it comes to the identification of the magnetic variations because they have the magnetic properties.
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Range of semiconductor devices and circuits
Range of semiconductor devices and circuits
12 pages (3000 words) , Coursework
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If the positive side of the ohmmeter is connected to the P-material and the negative side to the N-material the diode will be forward biased and due to this the voltmeter will at an appropriate scale will indicate some resistance. When the two ohmmeter leads are reversed the diode will be reverse biased and this indicates whether a diode is good or bad.
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Global pattern of earthquakes and seismic energy distributions
Global pattern of earthquakes and seismic energy distributions
10 pages (2500 words) , Term Paper
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In this regard, it is agreeable that the studies that oriented on studying the impacts of the amounts of energy that are produced by the seismic events are also pertinent. A large number of studies, which have inclined on complete logs analysis that contain all sizes of events, have created the allowance for the analyses pertaining to the number of events, denoted as N, as well associated energy, which is often denoted as E.
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Evidence for (or against) water on Mars
Evidence for (or against) water on Mars
8 pages (2000 words) , Research Paper
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Evidence for (or against) water on Mars. The issue of presence of water on mars has been a challenging question for many astronomers since 1877. “In the 1800s, human imaginations ran wild as astronomers glimpsed what they took to be canals on the Martian surface.
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Positron Annihilation
Positron Annihilation
10 pages (2500 words) , Essay
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When a low energy positron collides with a low energy electron, there is an emittance of two gamma rays in the opposite direction. This phenomenon, also called positron annihilation, results in two gamma rays at 180° and with 0.511 MeV of energy moving in opposite directions.
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Diffusion weighted (DW) Magnetic Resonance Imaging MRI
Diffusion weighted (DW) Magnetic Resonance Imaging MRI
13 pages (3250 words) , Essay
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Achievement of Different Diffusion Weightings 11 IV. Diffusion Information- Measurement 11 References 13 I. Introduction This paper discusses diffusion in general, and diffusion in the context of its use in magnetic resonance imaging or MRI. It discusses the use of diffusion in different MRI methods, with a focus on diffusion-weighted MRI.
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Did asteroids kill the dinosaurs
Did asteroids kill the dinosaurs
5 pages (1250 words) , Coursework
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The extinction event that is most familiar today is the one which killed off the dinosaurs, and allowed mammals to take their current place as the dominant species type (York 2006). One of the most well-known theories for the cause of this extinction event is an asteroid hit, but there are several others, including global climate change, volcanic eruptions, communicable disease, and sex determination.
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Alternating Current and Direct Current
Alternating Current and Direct Current
8 pages (2000 words) , Essay
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This essay analyzes the two main specific types of current: alternative current and direct current. The direction of the current flow is altered or reversed in the case of alternative current. Direct current is a little different from alternative current because it flows in the same direction all the time and no alteration is done with it like in the case of alternative current.
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Heat and temperature
Heat and temperature
4 pages (1000 words) , Coursework
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(Liboff, 1990) The addition of energy especially heat energy triggers particles to move faster while the removal of heat energy slows the particles down. Hence, if the state of heat energy of a system is known then the speed of its particles can be ascertained to a reasonable extent.
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Cell Phone Radiation Effects on Humans
Cell Phone Radiation Effects on Humans
4 pages (1000 words) , Research Paper
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Some say that cell phones are linked to higher occurrences of cancer and other ailments, while other studies report that cell-phone users have no higher rate of cancer than the population as a whole. No study to date has provided conclusive evidence that cell phones can cause any of these illnesses.
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Riblets and Tripwires and their role in reducing drag over underwater aerofoils
Riblets and Tripwires and their role in reducing drag over underwater aerofoils
4 pages (1000 words) , Essay
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Passive strategies for drag reduction in air and underwater vehicles, such as airplanes and submarines, are increasingly being investigated as they reduce the cost of operation of the vehicle by increasing its speed and efficiency. This essay discusses riblets and tripwires, and their use in drag reduction technology.
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The Origin of the Moon
The Origin of the Moon
5 pages (1250 words) , Essay
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The origin of moon has always been an unresolved enigma for investigators of science. Though four different theories have been proposed, none were able to explain completely the circumstances in which moon was born and became paired in a crucial way with the earth.
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Endangered and Threatened Species of Wyoming
Endangered and Threatened Species of Wyoming
5 pages (1250 words) , Essay
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Grizzly Bear. The grizzly bear (see Figure 1), whose scientific name is Ursus arctos horribilis, is called grizzly due to the light-colored fur on the back and shoulders, which may be brown, or blonde, or black. However, the fur of all grizzlies are white-tipped, making the fur looked grizzled.
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Cause and effects of Ozone Depletion
Cause and effects of Ozone Depletion
4 pages (1000 words) , Research Paper
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In other words, ozone is more important than oxygen as far as the sustainment of life forms on earth is concerned. The Ozone layer at the top of the atmosphere prevents harmful ultraviolet radiations produced by sun and other stars from reaching earth. However, manmade activities are causing huge problems to the ozone layer at the top of the atmosphere and the depletion of this layer is currently taking place.
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Black Hole. Characteristics and nature
Black Hole. Characteristics and nature
5 pages (1250 words) , Essay
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Black Hole. Black holes are very condensed space objects that were formerly the huge stars, which crumpled inward as a result of the power of their own gravity. Consequently, black holes are extremely thick. A black hole is a section of space-time from which “nothing, not even light, can escape” (Susskind & Lindesay, p.
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Solar panels in Burkina Faso
Solar panels in Burkina Faso
4 pages (1000 words) , Essay
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The paper briefs about the initial problems after the 2009 floods and explains the reasons behind this installation. Furthermore, the paper contains a detailed but simplified explanation of the working of solar cells including the structure of solar cells, the P-N junction and the mobile electron-hole pairs, along with the number of cells which will be needed for the required purpose.
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Give a description of the Cosmological Principle, and present a summary in your own words. Is it a truly scientific principle
Give a description of the Cosmological Principle, and present a summary in your own words. Is it a truly scientific principle
4 pages (1000 words) , Essay
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To have an in-depth analysis of the situation, various stakeholders such as philosophers, physicists, and astronaut have been working together. Despite this, disagreements have been evident due to differences in education background. The main difference between cosmology and astronomy is that cosmology covers a wider scope while astronomy is narrower and limited to celestial bodies and their interaction.
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Quantum Dynamics of Ion Traps for quantum computing
Quantum Dynamics of Ion Traps for quantum computing
7 pages (1750 words) , Download 1 , Research Paper
Looking at the quantum dynamics of cold trapped ions with application t quantum computation I will begin by explaining what a quantum computer is. A quantum computer is an instrument with the ability to accommodate a certain amount of data. This data in the quantum computer is accommodated within a system of quantum mechanical double level networks for example as spin – half particles or atoms of two levels.
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Erosion, weathering, mass wasting. Earths Interior Geologic Time Scale
Erosion, weathering, mass wasting. Earth's Interior Geologic Time Scale
4 pages (1000 words) , Assignment
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Erosion occurs when wind or water blow/wash away the topmost fertile layer of soil. As fertile land loses its fertility due to soil erosion, it is difficult to grow crops on eroded lands. Apart from affecting crops, erosion also weakens land, causing buildings to collapse.
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The Hubble Telescope
The Hubble Telescope
6 pages (1500 words) , Research Paper
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Time and again man invented various instruments that assisted in the finding out of what resided in the skies that were apparently unseen to man. Among these instruments one of the most revealing instrument proved to be the invention of the telescope. Its subsequent placement into the atmosphere beyond the Earth’s visible skies opened new horizons of information regarding the universe.
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The Lewis Spacecraft Mission Failure Investigation Board Report
The Lewis Spacecraft Mission Failure Investigation Board Report
5 pages (1250 words) , Term Paper
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The Lewis Spacecraft Mission Failure Investigation Board Report. The Lewis Spacecraft Mission failure of 1997 brings to the fore the risks inherent in engineering project management in the area of space exploration. NASA hoped to use the project to demonstrate the viability of using smaller satellites for space applications (NRC & NASA 54).
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The Vast Solar System
The Vast Solar System
4 pages (1000 words) , Assignment
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One of the most amazing part of creation would be the solar system. Today, the solar system is still a mystery to some people while those that understand what it really is are awed by its vastness. First of all, the solar system is made up of the star which we call the Sun; many planets namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto; and numerous comets, asteroids, and meteoroids.
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Effective Spring Constant
Effective Spring Constant
3 pages (750 words) , Download 1 , Lab Report
For each configuration, we suspended a number of masses on the spring system and measured the displacement of the setup from its original position. We’d then find out the effective spring constants graphically by plotting the graph between the force applied and displacement of the system.
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Ecology and the Environment
Ecology and the Environment
4 pages (1000 words) , Essay
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The main reason of the climate change is the green house gases that are the result of burning of fuel and other resources of the earth to attain power. The increases in the emission of the green house gases given rise to the temperature of the earth, which became one of the biggest threats to the habitat of the earth like the many species of the coral reefs, are vanishing due to the rise in temperature.
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Dr. Stephen Hawking
Dr. Stephen Hawking
8 pages (2000 words) , Research Paper
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Furthermore, this paper will chronicle the subsequent career and profession that he has as a theoretical physicist, which in turn, made him into an academic and scholastic celebrity. During his career of many years, he has accomplished numerous achievements and this paper will name and exemplify these attainments and successful discoveries.
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