Free Research Papers on Physics

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Anti-Matter

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Ordinary matter has negatively charged electrons circling a positively charged nuclei. Anti-matter however has positively charged electrons - positrons - orbiting a nuclei with a negative charge - anti-protons. Only anti-protons and positrons are able to be produced at this time, but scientists in Switzerland have begun a series of experiments which they believe will lead to the creation of the f... Full-text essay
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Atom Model

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The evolution of the modern atom model took several years to evolved with contribution from different scientists. One of these scientists, the first to come up with a modern model of the atom is JJ Thomson. Thomson proposes that the structure of an atom is mainly a sphere. A sphere that is filled with positive electronic field and contains tiny particles that has a negative charge. He called the ... Full-text essay
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Atom Model Evolution

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The evolution of the modern atom model took several years to evolved with contribution from different scientists. One of these scientists, the first to come up with a modern model of the atom is JJ Thomson. Thomson proposes that the structure of an atom is mainly a sphere. A sphere that is filled with positive electronic field and contains tiny particles that has a negative charge. He called the ... Full-text essay
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Atomic Theory

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The Greek concept of atomos: the atom Around 440 BC leucippus of Miletus originated the atom concept. He and his pupil, Democritus of abdera refined it for future use. Their atomic idea has five major points. All original writings of leucippus and Democritus are lost. The only sources we have for there atomistic ideas are inquotations from other writers. Democritus was known as the "laughing... Full-text essay
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Black Holes

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Black holes are objects so dense that not even light can escape their gravity, and since nothing can travel faster than light, nothing can escape from inside a black hole . Loosely speaking, a black hole is a region of space that has so much mass concentrated in it that there is no way for a nearby object to escape its gravitational pull. Since our best theory of gravity at the moment is Einstein... Full-text essay
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Bound-free Transitions In ArCl

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The first report of a new type of excimer system came from Golde and Thrush at Cambridge who observed characteristic bound-free transitions in ArCl produced by reacting argon metstables with chlorine in a flowing afterglow system. At present the rare-gas halidel asers are undoubtedly the most important excimer lasers and are being actively developed for applications in laser-induced fusion an... Full-text essay
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Changes Of Matter State

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To define matter, one would say that it is something that occupies space and has weight. Matter naturally occurs in three phases: solid, liquid, and gas. Changing from a solid to a liquid, liquid to gas, etc. can be referred to as a change of state. Changes of state (or phase) effect our everyday lives. This chapter on changes of phase should actually be called Energy Transfer. The whole basis on... Full-text essay
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Charles Law

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Introduction: One of the variables that affects the volume of a gas is the temperature of the gas and its surroundings. This volume-temperature relationship is quantified in Charles’s law. The law states that as the temperature of a gas decreases, the volume of the gas decreases proportionately. An ideal gas at 273 K, for example would decrease in volume by 1/273 of its original volume for each C... Full-text essay
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Electrical Circuits

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Unlike the last lab on RL, RC and RLC circuits, we measured the frequency characteristics of these circuits. We observed the steady-state sinusoidal response of an high-pass RL circuit, a low-pass RC circuit and a band-pass RLC circuit. PROCEDURE 10.4.1 Steady-State Sinusoidal Response of High-Pass RL Circuit This part of the lab consisted of constructed an high-pass RL circuit shown below in Fig... Full-text essay
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Electro Magnetic Fields

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Electricity is the building block of our society. Now more and more we are becoming dependent on electricity from computers to microwaves, electric power is what keeps our society running. Something that no one thinks about is Electro- Magnetic Fields or (ELF’s). While these ELF are being ignored slowly they are becoming a silent but deadly killer in our society. Scene cancer and illness are beco... Full-text essay
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Electro Magnetic Radiation

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Electromagnetic Radiation Electromagnetic radiation is defined as “the emission and transmission of energy in the form of electromagnetic waves” (Chang, pp. 246). An electromagnetic wave consists of two waves at perpendicular planes, on representing the electrical field while the other represents the magnetic field. This spectrum is split up into about 81 octaves, much like the octaves of sound, ... Full-text essay
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Electro Magnetism

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Electromagnetism defined as “magnetism produced by an electric current”. In other words it is the electricity part of what holds ourselves and every bit of matter in the universe together. This source of universal “glue” is found within atoms themselves. As the name sounds, there are two different forces within electromagnetism - the electric force and the magnetic force. Before the early part of... Full-text essay
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Electrolytes

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Electrolytes are liquids that conduct electricity. Most need to be dissolved into water or another solvent. Battery’s have an electrolyte in them, either as a liquid or as a paste. Liquid electrolytes are used in electrolysis, electroplating, and other chemical processes. When electrolytes dissolve they release positive and negative ions. The released ions carry electric charges between electrode... Full-text essay
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Electromagnetism

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Electromagnetism exists everywhere. When people drive, walk, or even go to the beach. However, due to the extreme complexity of the topic, electromagnetism has proven to be a subject studied by those who are crafty and willing enough to explore the domain. The ideas of electricity start from simple objects such as springs, coils and magnets that simply created a current for some sort of affect to... Full-text essay
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Flight

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Research: Airplanes are an efficient way of traveling to far places. Airplanes are amazing if you know what and how the air keeps the plane airborne. There are three components of flight: aerodynamics, the Bernoulli principal and supersonic flight. Some other things about flight are the four forces, lift, drag, weight, and thrust. One of the basic things you need to know about airplanes is that t... Full-text essay
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Force Systems

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By possessing an understanding of Newton's Laws, following these three laws of graphical solutions, and understanding vector algebra you can solve most engineering static problems. Systems of Force Systems of force acting on objects in equilibrium can be classified as either concurrent or nonconcurrent and as either coplanar or noncoplanar. This gives us four general categories of systems. The fi... Full-text essay
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Forced Air Induction

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The Garret Aviation VNT-25 The idea of forced air induction by turbine, or turbo, is not new and has it's mass production roots in WWII fighter planes. What is new, however, is its application to passenger automobiles. Unlike a near constant high RPM fighter engine, an automobile requires wide-open throttle (WOT) power availability throughout its entire operating range. Previous automotive turbo ... Full-text essay
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Fusion

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Fusion reactions are inhibited by the electrical repulsive force that acts between two positively charged nuclei. For fusion to occur, the two nuclei must approach each other at high speed to overcome the electrical repulsion and attain a sufficiently small separation (less than one-trillionth of a centimeter) that the short-range strong nuclear force dominates. For the production of useful amoun... Full-text essay
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Fusion Heat

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The objective of this experiment is to find the heat of fusion of water by using a calorimeter. The calorimeter will be used to melt ice in water to find the heat of fusion. Theory: Heat of fusion is known to be the amount of heat that it takes to allow one mole of a substance to turn from solid to liquid. The heat of fusion of water is known to be 80 cal/mol. This experiment will use a calorimet... Full-text essay
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Geothermal Energy

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Geothermal energy represents the inner heat of the earth, produced largely by the decay of radioactive elements in the mantle and center. The three ways that the heat is found is both wet and dry steam (wet steam has drops of water in it), hot water and dry volcanic rocks. We know that the temperature of the earth at depths of 25 to 50 km range from 200`C to 1000`C. There are areas of the earth w... Full-text essay
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Golf Physics

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As anyone who has played a round of golf will attest to, the sport is based around many fundamental principals of physics. These basic laws are involved with every aspect of the game from how a player swings the club to how the ball moves through the air on its way toward the pin. It is the challenge that physics presents to the golfer that has allowed the game, and equipment used, to develop so ... Full-text essay
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History Of Physics

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Physics began when man first started to study his surroundings. Early applications of physics include the invention of the wheel and of primitive weapons. The people who built Stone Henge had knowledge of physical mechanics in order to move the rocks and place them on top of each other. It was not until during the period of Greek culture that the first systematic treatment of physics started with... Full-text essay
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Hydrogen

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Hydrogen in it’s liquid form has been used in space vehicles for years. Hydrogen has a high combustion energy per pound relative to any other fuel, meaning hydrogen is more efficient on a weight basis than fuels currently used in air or ground transportation. Hydrogen is the universe’s most abundant element. Most of that hydrogen though, is tied up in chemical bonds. Hydrogen can exist in either ... Full-text essay
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Hydrogen

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Hydrogen in it’s liquid form has been used in space vehicles for years. Hydrogen has a high combustion energy per pound relative to any other fuel, meaning hydrogen is more efficient on a weight basis than fuels currently used in air or ground transportation. Hydrogen is the universe’s most abundant element. Most of that hydrogen though, is tied up in chemical bonds. Hydrogen can exist in either ... Full-text essay
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Hydroponics

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The word “hydroponics” is thought to have been derived from the Latin “water working.” Water is the basis for hydroponics. Stated plainly, hydroponics is the growth of plants without soil. History Though often thought of as modern and experimental, hydroponics is an ancient practice. Though it wasn’t known at the time, the Hanging Gardens of Babylon were hydroponic. Less famous, the Aztecs’ Raft ... Full-text essay
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Hydroponics

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Have you ever thought of growing plants without soil? A science known as hydroponics will allow you to do just this. Hydroponics systems have been used since the time of the ancient Babylonians who used them to used them to grow their famous hanging gardens. Today, all around the world, fruits, vegetables, flowers, and ornamental plants are grown using hydroponics. The word hydroponics was derive... Full-text essay
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Hydrothermal Vents

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Imagine being on the ocean floor. You are in total darkness and in unbearable pressure. You would think that in this freezing environment there is no life, but there is. Eight years ago something was discovered that no one could even imagine. It was a source of life called a hydrothermal vent. A hydrothermal vent is a hot spring found at depths from three to four thousand meters in areas along mi... Full-text essay
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John Bardeen

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Bardeen, John 1908-91, American physicist; b. Madison, Wis. He was known for his studies of semiconductivity and other aspects of SOLID-STATE PHYSICS. The first to win a Nobel Prize twice in the same field, Bardeen shared the 1956 physics prize with Walter Brattain and William Shockley, for work in developing the TRANSISTOR, and the 1972 physics prize with Leon Cooper and John Schreiffer, for the... Full-text essay
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Light Effects Measurement On Sedimentary Particles In Water

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The purpose of this study plan is to measure the effects of light on sedimentary particles in water. This study plan will include information pertaining to equipment, procedures, and analysis. This plan will also discuss problems that could arise during the sampling. Objectives The objective of this study is to observe whether sedimentary accumulation at various depths will effect the penetration... Full-text essay
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Lightning

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Lightning is a discharge of static electricity in the atmosphere, which causes a bright flash of light. When lighting goes through the air, it heats the air to degrees hotter than the sun's surface about 50,000 degrees fahrenheit. This heating causes the air to expand and contract. This causes the sound called thunder. Lightning is caused by a build up of negative ions in the atmosphere which dis... Full-text essay
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Lightning Phenomenon

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Lightning is a natural phenomenon that occurs more often than we think it does. That streaking flash, followed by a loud rumbling noise, that makes your knees buckle is very dangerous because of its unpredictable striking force. Being struck by lightning can be deadly, so the more precautions you take ahead of time, the safer you are. Lightning not only affects us, it also has a great impact on o... Full-text essay
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Linear Momentum

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Measurements of velocity and mass of two objects colliding, support the conservation of linear momentum. The dynamics of different masses distinguish velocity values experimentally. Video recordings of two colliding masses can be manipulated to extract frames displaying distance verses time. Computer software enables us to derive the velocity. Different masses were tested to determine an increase... Full-text essay
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Man And The Universe By Pascal

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Pascal builds his argument in “Man and the Universe” out of a series of paradoxes, seemingly contradictory truths. In writing, “Man and the Universe,” Pascal reflected his views on what is our place in the world as human beings. Pascal’s writing shows a harmony between mathematical certainty and moral truths in support of his argument. In his “Pensees” or “Thoughts,” Pascal hoped to integrate sci... Full-text essay
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Mechanical Energy

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Have you ever wondered how a jet aircraft lifts its tremendous weight off the ground, or what gives a runner the stamina to reach the finish line in a race? In order to answer all these questions we must talk about the transformation of one sort of energy into another. The jet aircraft gets its power from jet turbines. These powerful jet engines create a high-pressure stream of very hot gases tha... Full-text essay
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Metamorphosis

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Metamorphosis: In biology, striking change of form or structure in an individual after hatching or birth. Hormones called molting and juvenile hormones, which are not species specific, apparently regulate the changes. These physical changes as well as those involving growth and differentiation are accompanied by alterations of the organism's physiology, biochemistry, and behavior. From animal dev... Full-text essay
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Momentum And Collisions

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This report will investigate the theoretical velocity of a ball bearing gun. The methods and techniques used to derive the results will be shown along with the possible systematic and random errors caused by experimental limitations. Discussion: · Since the track is virtually frictionless and air resistance is neglected, the system is isolated; the net resultant force of the external forces equal... Full-text essay
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Nuclear Fusion

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Nuclear Fusion is the energy-producing process which takes place continuously in the sun and stars. In the core of the sun at temperatures of 10-15 million degrees Celsius, Hydrogen is converted to Helium providing enough energy for us to sustain life on earth. For energy production on earth, different fusion reactions are involved. The most suitable reaction occurs between the nuclei of the two ... Full-text essay
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Pendulum Effects

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In this experiment we will observe the properties of a pendulum moving in a circular motion rather than the traditional “back and forth” motion. This will simulate the direction that a satellite would follow above the earths atmosphere. The purpose of this experminate will be to show how gravity pulls on the string and the path that the pendulum follows. Apparatus used: 1. Pendulum with long stri... Full-text essay
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Planetary Physics

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A planet is a celestial body that revolves around a central star and does not shine by its own light " (Grolier, 1992). The only planetary system that is known to man is our solar system. It is made up of nine planets which range in size and make-up. The nine major planets in our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. There are also many oth... Full-text essay
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Plasma

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Matter consists of atoms held together by electromagnetic forces. How tight these bonds are, determines which of the four states: solid, liquid, gas and plasma, matter exists as. Plasma is only found naturally in the corona and cores of stars and in bolts of lightning. There are three classic states of matter: solid, liquid, and gas; however, plasma is considered by some scientists to be the four... Full-text essay
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Porosity And Fluid Saturations

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Porosity is the best known physical characteristic of an oil reservoir. It determines the volume of oil or gas present, and all recovery computations must be based on knowledge of its value. Porosity of a material is defined as that fraction of the bulk volume of this material that is not occupied by the solid framework of the material.In oil reservoirs,the porosity represents the percentage of t... Full-text essay
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Protons

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The source is a nine volt battery. I'm creating energy by using light pulse transformers...columns of light pulse transformers...The timing is so that the base wire is a constant current.The columns of the light pulse transformers are in a circle all going to the same base wire. They fire like timed pistons in a car engine and are timed by previous pulses heading toward it. Each pulse travels thr... Full-text essay
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Quantim Theory

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Quantim Mechanics is abranch of mathematical physics that deals with the emission and absorption of energy by matter and with the motion of material particles. Because it holds that energy and matter exist in tiny, discrete amounts, quantum mechanics is particularly applicable to Elamentry Pprticlesand the interactions between them. According to the older theories of classical physics, energy is ... Full-text essay
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Rocket Engines

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One of the most amazing endeavors man has ever undertaken is the exploration of space. A big part of the amazement is the complexity. Space exploration is complicated because there are so many interesting problems to solve and obstacles to overcome. You have things like: The vacuum of space Heat management problems The difficulty of re-entry Orbital mechanics Micrometeorites and space debris Cosm... Full-text essay
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Sir Isaac Newton

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Sir Isaac Newton was born on December 25, 1642 (according to the Julian calendar which was in use then; the date was January 4, 1643, according to the GRegorian calendar in use today0, at Woolsthorpe near Grantham in Lincolnshire. His widowed mother remarried when he was three years old, leaving him in the care of his feeble grandmother. Eventually his mother was persuaded to send him to grammar ... Full-text essay
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Solar Energy

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About 47 percent of the energy that the sun releases to the earth actually reaches the ground. About a third is reflected directly back into space by the atmosphere. The time in which solar energy is available, is also the time we least need it least - daytime. Because the sun's energy cannot be stored for use another time, we need to convert the suns energy into an energy that can be stored. One... Full-text essay
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Sound Nature

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Very simply, sound is the vibration of any substance. The substance can be air, water, wood, or any other material, and in fact the only place in which sound cannot travel is a vacuum. When these substances vibrate, or rapidly move back and forth, they produce sound. As described in the How We Perceive Sound: The Ear section, our ears gather these vibrations and allow us to interpret them. To be ... Full-text essay
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Spectrophotometery

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The purpose of this lab experiment is to understand the uses of spectrophotometry. This experiment concentrates on the uses of the spectrophotometer, and using this instrument to specifically determine the absorption spectrum of a cobalt chloride solution, a galactose solution, and to determine an unknown concentration of a galactose solution. Modern biologists frequently use the measurement of l... Full-text essay
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Superfluids

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"As we shall see, it is generally believed that the phenomenon of superfluidity is directly connected with the fact that the atoms of helium-4 obey Bose statistics, and that the lambda-transition is due to the onset of the peculiar phenomenon called Bose condensation." (Leggett, 1989) BOSE-EINSTEIN CONDENSATION This is the phenomenon wherein the bosons (a type of particle) making up a s... Full-text essay
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Ultraviolet Rays

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I went to Hawaii on vacation to get a tan, but I got something else instead. Ultraviolet rays are stronger, and hotter near the equator. When I got home I got x-rays. I was sent for treatment with gamma rays. Wow! What a vacation. It was so hot that I had to jump into a pool just to cool off. Ultraviolet rays have wavelengths between 10nm and 430 nm. They also have a very high frequency of ab... Full-text essay
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