From the Paper
"Gas chromatography is a method for the separation and analysis of complex mixtures of volatile organic and inorganic compounds (1:666). Most compounds with boiling points less than 250oC (480oF) can be analyzed using this technique. This paper will describe the apparatus used for gas chromatography, the principles on which it works, how a thermal conductivity detector works in gas chromatography, and whether or not it can be used with a sample of potassium t-butoxide.


General Principles of Gas Chromatography
There are two types of gas chromatography: gas-liquid chromatography, where the sorbent is a nonvolatile liquid called the stationary liquid phase, coated as a thin layer on an inert, granular solid support; and gas-solid chromatography, where the sorbent is a granular solid of large surface area (1:666). The..."

Abstract
In this article, the writer explores the scientific method. The writer describes and defines the phrase scientific method. The writer then studies how the scientific method is used. In this paper, the writer outlines an example of use of the method in order to determine why the grass on one lawn is dead, while that on the neighbor's lawn is healthy.

From the Paper
"The scientific method is the process by which scientists collectively over time construct an accurate representation of the world. The first step is to observe and describe some phenomenon which is of interest. Next a hypothesis is developed to explain the phenomenon. In the third step, the hypothesis is used to make predictions about new phenomena or the results of these new phenomena. Fourthly, these predictions are tested by experimentation or further observation. Steps three and four are then repeated until consistent results are obtained. This often ... "

Tags:scientific method, hypothesis, theory

Abstract
This paper examines how, in his letter to the Grand Duchess Christina, Galileo argues that explanations of physical phenomena are not matters of faith. It discusses how he consistently attacks his opponents and counters their arguments on the basis of two flaws, while defending his own work and the place of science in society. By constantly emphasizing the significance of the Bible and his own devout nature, the papers attempts to show how Galileo's clear arguments succeed in proving how the domains of religion and science can be balanced without demeaning one or the other.

From the Paper
"Galileo upholds and supports the significance of his scientific work and of science in general, not by humbling religion but by refuting the beliefs of those associated with it. In turn, he accuses them of wrongdoing in the name of Catholicism. By attributing this as the sole reason for any discrepancy between science and religion, he begins to attack his opponents. He does so in a very direct and precise way. First, he makes it clear that many of his opponents are ignorant of the current scientific developments, even those that are compatible with Catholic doctrine. The fact that Galileo had supporters from the Church proves that even the controversial points could be studied, as long as their legitimacy was not openly acknowledged. This justifies Galileo in accusing his adversaries of a complete lack of knowledge and understanding of science. "

Tags:science, religion

Abstract
This essay explains the basis of Quantum Mechanic Theory of the atom, which describes the behavior of electrons in atoms & molecules. The author examines this theory and provides a detailed analysis of it.

From the Paper
"The Quantum Mechanics Theory describes the behavior of electrons in atoms & molecules. Quantum Mechanics is also referred to as Wave Mechanics. The theory of quantum mechanics tells us that in the atom, electron waves are standing waves. This theory was devised by Max Planck in 1901. He stated that light is emitted by the atoms of a luminous body in separate packets or bundles of energy called quanta or photons. One or more of the electrons revolving about the nucleus of an atom can be made to jump from one orbit to another. As they do so one or more photons are emitted. This energy radiates from the luminous body as electromagnetic waves. The energy content of a photon determines the length and frequency of the wave. Wave mechanics views the probability of finding an electron at a given point in space."

Tags:chemistry, physics

Abstract
This paper explains how a nuclear reactor produces energy. The paper includes a discussion of fission, radioactivity, types of reactors and how they produce electricity.

From the Paper
"All modern nuclear reactors operate on the principal of nuclear fission. Nuclear fission is a process in which the nucleus of an atom is split when it absorbs a free neutron after a collision occurs between the atom and the neutron. Splitting the nucleus of the atom releases large amounts of nuclear energy contained within the nucleus. Once the nucleus of the atom is split, multiple neutrons are released which are used to split nuclei of other atoms, causing what is known as a chain reaction. The chain reaction will continue as long as an average of one neutron per fission is absorbed by a nucleus. By harnessing and manipulating the energy that is released, other types of energy can be obtained. The power developed by nuclear fission has been used by man to create, as in the driving of an electric generator and for propulsion, as well as destroy, as in the release of atomic explosion. Whereas the fission in a nuclear reactor is precisely controlled to prevent a nuclear meltdown, the fission in an atomic explosion is not controlled and the shock wave produced by the splitting atom and its resulting chain reaction is equal to several thousand tons of TNT."

Tags:physics, nuclear, energy, fission, reaction, radioactivity, protons, reactors, electricity

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."

Tags:electric, fabrication, field, material, layer, energy, state, electron, semiconductor, microelectronics

Abstract
This paper discusses the many positive aspects of UV radiation. The author examines the way ultraviolet light is commonly used, defines UV light, its dangers and how it's used in fluorescent lighting. The paper also describes how UV radiation is frequently used in water purification plants, destroying harmful bacteria.

From the Paper
"UV radiation is what is responsible for causing human skin to tan. Unlike x rays, ultraviolet radiation has a low power of penetration, so its only direct effects on the human body occur on the skin's surface and include sunburn, suntan, aging, and carcinogenic changes. Most of us know that "sunburn" is not simply a metaphor but is in fact like burns from other forms of radiation and can include symptoms ranging from redness and tenderness to blisters, swelling, seepage of fluid, and sloughing of the outer skin. Tanning - while it is never healthy, as we know now, is simply a natural body defense that uses melanin to help protect the skin from further injury from UV radiation."

Tags:rays, ultraviolet, light, sun, water, tan, fluorescence, x-ray, wavelength, uses, regions, skin, melanin

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."

Tags:math, science, computer, simulation, bumblebee, myth, turbulence, vector, transitional, flows, reynolds, airplane, velocity, field, navier-stokes, equation, bermouli, wing, magnus, stagnation, streamline, dynamic, pressure, continuity, equation, physics, mass, dynamic, pressure, de

Abstract
This paper explains the composition of comets and clarifies what happens that gives them their shimmering appearance. It explains the various types of comets and elucidates the close link between the orbit of comets and the orbit of meteor showers. It lists the commonly seen features when a comet is near the sun and concludes by looking at factors resulting in a change in the behavior of a comet.

From the Paper
"In outer space there are many things that man is still trying to fathom, and he has been intrigued by many things high up in the sky, but yet has not been able to figure out what they are or what they may mean. The field of astrology is one that began thousands of years ago with the Egyptians being the first known astronomers. They were the ones who created the first map of the North Star that is used till today to trace the movements of our planet and the heavenly bodies around it."

Tags:composition, appearance, types, orbit, meteor, showers, features, change, behavior

From the Paper
"Outline: The Effect of Global Warming on Storm Systems
Thesis: The emission of anthropogenic greenhouse gases may eventually cause global climatic changes that result in storms of increased severity.

I. Global warming has occurred in recent decades.
A. There has been a corresponding increase in the release of anthropogenic greenhouse gases.
B. These gases trap solar radiation and cause an increase in average global temperatures.
C. If current trends continue, by about the year 2030 the world's average temperature could increase by 1.3"C to 2.3"C.
II. Global warming may dramatically affect weather.
A. The impact of global climatic change on weather is ..."