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Your search returned over 400 essays for "crystals"
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Gemstones and Crystals - I have chosen to talk about precious gemstones and crystals. There are many people now and days rediscovering the many uses of gemstones and crystals. To my knowledge each, have many different uses. They can be used as adornments, for health, for healing and for spiritual practices. You have probably never even heard of stones or crystals in this fashion before. I am going to take this opportunity to tell you what I know about this fascinating world that I have grown very accustomed to. I am not a gemstone/crystal specialist but, I do know enough about this topic to give you a slight overview about this topic....   [tags: Discoverys, Process, Value] 724 words
(2.1 pages)
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The Swarovski Crystals and the Swarovski Brand - ... They are important for costumes for skaters and dancers. They are great for the theater because of the way they shine on stage. Clothing designers use rhinestones for trim and decoration. Jewelers make them part of original pieces and to repair old ones. From fingernail bling to denim pockets, purses to cell phones, with a bit of glue, crystals put dazzle on anything. Considerations Using Swarovski crystals may call for transfer film, tweezers, a hot fix tool, or needles and thread. Swarovski also makes rhinestone stretch banding, zippers and clasps, which save time when applying crystals to an accessory....   [tags: accesory and product analysis] 599 words
(1.7 pages)
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Crystals: Wonders of Nature - In the future, people will have lightning fast computers and a new kind of phone. All of their new electronics will have crystals in their construction somewhere. From microchips with super-storage or photon-processing crystals, crystals will be everywhere. And they already are. Crystals are used in color changing paint and even in the touch screen of smartphones. Many famous scientists are researching crystals and how they could be used. Crystals are natural wonders of nature that are built in complicating and amazing structures that have the potential to be used everywhere....   [tags: fast computers, cassiterite, zircon]
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1282 words
(3.7 pages)
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Liquid Crystals - We were all taught that there were four states of matter: Solids, Liquids, Gases, and Plasma, but some states of matter cannot be defined by one the these four. One of which are liquid crystals. These crystals have properties of both liquids and solids. They physically flow like liquids, but also share characteristics of crystalline solids. There is also more then one type of liquid crystals along with their different phases. Since they have so many properties, its no wonder how much we use them today....   [tags: Chemistry]
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973 words
(2.8 pages)
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Crystals - Melt Suspension Crystallization (MSC) is a technique, that can be used for large scale separation and ultrapurification of organic compounds. Because of the high selectivity of crystallization, the moderate operating conditions, and the relatively low latent heat of fusion, the energy consumption of these kind of processes is low. Furthermore, the use and regeneration of toxic or explosive solvents can be avoided. Thus, MSC can be regarded as an environmentally and economically promising technique for wide industrial application....   [tags: essays research papers] 432 words
(1.2 pages)
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A Little History Behind Photonic Band Gap Materials - Photonic Band Gap Materials:  A little history behind Photonic Band Gap materials (PBG). In 1987, an American physicist and engineer named Eli Yablonovitch and Canadian physics professor from the University of Toronto Canada, Sajeev John constructed artificial structures that then became the concept of PBG material. In order to evaluate this concept they created a 3D prototype diamond lattice in Plexiglas, which is a type of acrylic glass material. With this creation they were able to prove that PBG materials are capable of propagating electromagnetic waves....   [tags: photonic crystals, wave propagation]
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1083 words
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The History of the X-Rays - ... (2.) A man named William David Coolidge solved this debacle by creating the vacuum sealed Coolidge Tube, which not only allowed an increase in power through the tube that allowed better pictures, but it also permitted more stability in the x-ray tubes, thus giving them a longer working lifespan. The Coolidge tube could operate to energies up to 100,000 volts. General Electric went on to make x-ray tubes capable of operating at energies up to 1,000,000 volts, which gave the x-ray technology enough stability to become industrialized and mass produced....   [tags: crystals, rays, medicial, industial]
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762 words
(2.2 pages)
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Overview of Agile Methodology - Chapter 3 Agile Methodology 3.1. Overview Agile software development is a group of software development methods based on iterative and incremental development, where requirements and solutions evolve through collaboration between self-organizing, cross-functional teams. It promotes adaptive planning, evolutionary development and delivery, a time-boxed iterative approach, and encourages rapid and flexible response to change. Agile development is chosen when the requirements are not clear. This is the reason that it is chosen for the projects where the rate of risk is high....   [tags: software, development, crystals] 1555 words
(4.4 pages)
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The Physics Of A Crystal - The Physics of a Crystal Most simple chemical compounds consist of crystals. If you were to examine a lump of crystalline material very closely, you would be able to see tiny individual crystals. All crystals have a definite geometric shape, determined by the way the atoms are linked together. Mineralogists recognize 32 different classes of crystal, which are grouped into seven crystal systems. Crystal systems are described by their axis, which are imaginary lines that join the center of opposing faces of a crystal....   [tags: essays research papers] 337 words
(1 pages)
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Simple Evolution of Complex Crystal Sequences - In 1966 Graham Cairns-Smith proposed that the first genetic material on earth was not organic, but crystalline, and resided in the particular morphologies of clays. One of the primary objections to this theory is that it is not clear how non-trivial crystal genotypes could be selected for. It is therefore of interest to ask whether crystals and physical conditions for their assembly exist where complex crystal morphologies could evolve. DNA tile crystals are particularly suitable for this kind of investigation because DNA tile monomers are programmable---new molecules with particular affinities can be easily designed and synthesized....   [tags: Biology] 1874 words
(5.4 pages)
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Evaluation of the Fractal Dimension of a Crystal - Evaluation of the Fractal Dimension of a Crystal Abstract The purpose of this experiment was to determine the effects of voltage and molarity changes on the fractal dimension of a Cu crystal formed by the re-dox reaction between Cu and CuSO4. Using the introductory information obtained from research, the fractal geometry of the Cu crystals was determined for each set of parameters. Through the analysis of data, it was determined that the fractal dimension is directly related to the voltage....   [tags: Chemistry Chemical Papers]
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1956 words
(5.6 pages)
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A Real-time Scintillation Crystal Identification Method and Its FPGA Implementation - A popular method for gamma ray detection utilizes scintillation detectors which consist of crystals optically coupled to a photomultiplier tubes (PMTs). Scintillators are widely used in the medical radiation fields such as CT scanners, gamma cameras and positron emission tomography (PET) scanners ‎[1]-‎[5]. The scintillation crystal responds to the absorption of gamma ray by the emission of a light pulse. This light pulse is characterized by the special properties of the crystal such as the decay time constant....   [tags: gamma ray, energy, domain]
:: 29 Works Cited
557 words
(1.6 pages)
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A Boy, a Dream, and the Crystal Palace - “Victoria, I must say, this has to be the greatest idea of my life. Nay, it must be the greatest idea of this entire country!” “I believe you may be exaggerating Albert, but I must say you are a genius.” the Queen responded. “I will make sure you get whatever materials are necessary for this project.” “Thank you, my Queen.” Prince Albert said, bowing as he exited the room. And so it began, all of England hurried around at the Queen's order. Hundreds were working fervently to make Albert's idea a success....   [tags: essay, short story] 2639 words
(7.5 pages)
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The History of Crystal Methamphetamine - The History of Crystal Methamphetamine: Amphetamine was found before methamphetamine. It was first created in 1887 in Germany by Romanian chemist Lazăr Edeleanu. It was then called phenylisopropylamine. In 1919, methamphetamine hydrochloride was manufactured by pharmacologist Akira Ogata viareduction by using red phosphorus and iodine. Today, methamphetamine is sold under the name Desoxyn. Facts about Crystal Methamphetamine: • Crystal methamphetamine lifts the users mood, as well as increases energy levels • It can last from six to eight hours, and can sometimes last up to twenty-four hours....   [tags: White Crystalline Drug, Amphetamine, Facts]
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1363 words
(3.9 pages)
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The Crystal Palace - The Crystal Palace During the 1800’s Great Britain’s empire stretched around the world, and with raw materials easily available to them this way, they inevitably began refining and manufacturing all stages of many new machines and other goods, distributing locally and globally. However, despite being the central ‘workshop of the world,’ Britain was not producing the highest quality of merchandise. When comparing factory-made products made in England to surrounding countries, most notably France, those products could not compare as far as craftsmanship and sometimes, simply innovation....   [tags: essays papers]
:: 4 Works Cited
911 words
(2.6 pages)
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The New York Crystal Palace - Missing image The New York Crystal Palace: The End of an Era So bursts a bubble rather noteworthy in the annals of New York. To be accurate, the bubble burst some years ago, and this catastrophe merely annihilates the apparatus that generated it. -George Templeton Strong It is unfortunate that the wonderful lithographs in our collection which depict the burning of the New York Crystal Palace are not in this online exhibition. They include a color lithograph by Currier & Ives which truly captures the excitement and confusion of that fateful night....   [tags: Architecture History] 950 words
(2.7 pages)
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The New York Crystal Palace - The New York Crystal Palace: The Great Exhibition of Art and Industry "The Crystal Palace is a partial picture of the age; an exposition of the comforts and luxuries, the manners and attainments which belong to our civilization." -B. Silliman & C. R. Goodrich (The World of Science, Art and Industry at the Crystal Palace, New York, 1854) On July 14, 1853, the Great Exhibition of Art and Industry began in New York City, New York, with the commemoration of the Crystal Palace, the central exhibition hall....   [tags: Architecture History] 1488 words
(4.3 pages)
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The New York Crystal Palace - An Ode for the Inauguration of the American Crystal Palace: The nations meet, not in war, but in peace, beneath this dome. They meet to bring glory to God on high and goodwill to men. The Crystal Palace is a symbol of the might of Man. Look on, ye Nations, and vow eternal peace and justice. -William R. Wallace (New York Times, July 14, 1853) When the first major international exhibition of arts and industries was held in London in 1851, the London Crystal Palace epitomized the achievements of the entire world at a time when progress was racing forward at a speed never before known to mankind....   [tags: Architecture History] 1638 words
(4.7 pages)
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Crystal Meth The Drug of Choice for Young People - ... Many people began buying these medications and abusing them for recreational purposes. Methamphetamine was regulated in the 1970s to decrease the use of the drug. Meth is used for various reasons. Females often used meth because it can cause rapid weight loss. Eventually the body will build up tolerance causing the meth user to use more meth to get the same effect. Another reason people choose to use meth is because of the long-lasting high that it gives. Methamphetamine causes numerous neurotransmitters to be released in the brain, producing a sense of euphoria that may last as long as 12 hours, depending on how the drug was taken....   [tags: addictions, cocaine, weight loss] 612 words
(1.7 pages)
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Article Analysis: Birth Control Review by Crystal Eastman - ... Furthermore, the biggest underlying value that I could find within her article would be economic freedom for women. Her key values include the female right to vote, women holding office, birth control, and social and sexual freedom. “This is to me the central fact of feminism. Until women learn to want economic independence, i.e. the ability to earn their own living independently of their husbands, fathers, brothers, or lovers-and until they work out a way to get this in independence without denying themselves the joys of love and motherhood, it seems feminism has no roots.” (Eastman, Pg.509) Therefore, she engages several different topics trying to draw in more fellow feminists....   [tags: feminist dream, bible, freedom]
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586 words
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Exterior of the Crystal Palace - Crystal Palace, Exterior The Crystal Palace was dismantled and rebuilt in Sydenham after the closing of the Fair and stood there until 1936 when it was destroyed by fire. Although it is no longer standing today, this structure is documented in photographs such as this one, through which it can continue to influence the worlds of architecture and engineering. The Great Exhibition of 1851 was the first event of its kind, bringing together people from all over the earth in an environment of peace and intellectual stimulation....   [tags: Architecture]
:: 6 Works Cited
1900 words
(5.4 pages)
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Text Messaging: 2b or not 2b? by David Crystal - “Our generation doesn't ring the doorbell. They text or call to say they're outside,” this line is from one of the well-known social networks, Tweeter, which shows how the way of communication has change in this modern life. According to 2013 statistics by Business Insider, in United States alone, smartphone owners aged 18 to 24 send 2,022 texts per month on average — 67 texts on a daily basis — and receive another 1,831 texts (Cocotas). Nowadays, technology such as text messaging has practically replaced traditional face to face communication among the society primarily in young generations because texting allows messages to be sent fast and effortless....   [tags: children, spelling, writing]
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1010 words
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Crystal Night - Crystal Night Source Based Source C is important because it is written by Joseph Goebbels. It was produced on the 12th November 1938, it is an extract from a Nazi newspaper, which means it is biased. The Nazis would want to portray that they had nothing to do with organising Crystal Night. Furthermore, Goebbels is the head of propaganda. Goebbels was a notorious liar and it was his policy that, “the bigger the lie, the more people will believe it”. Source D, is written by Goebbels but this time it paints a very different picture of what went on....   [tags: Papers] 740 words
(2.1 pages)
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Crystal Meth Addiction - Ice, crank, meth, crystal, tweak, go fast otherwise known as Crystal Methamphetamine, in the United States is at epidemic levels. 1 Meth is not only highly addictive it is easily "cooked" in homes across the country. Unlike some drugs, which are derived from natural sources, meth includes an array of dangerous chemicals. These chemicals can include battery acid, rat poison and motor oil. Crystal meth is a sub-category of amphetamine. Amphetamines are synthetic amines- which are similar to the body's neurotransmitter: norepinehrine and the hormone epinephrine (adrenaline)....   [tags: Health] 1722 words
(4.9 pages)
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Photograph of the Demolition of the Crystal Palace, 1936 - Photograph of the Demolition of the Crystal Palace, 1936 The Crystal Palace designed by Joseph Paxton stood for eighty-five years. It succumbed to fire "at six o'clock on the evening of 30th November 1936" (Beaver, 141). A fire was discovered in the staff lavatory, and within minutes the whole structure was ablaze. The spectacular building was engulfed in fire as it dissolved into just a skeleton of its former structure. Paxton used innovative methods of construction on the Crystal Palace, greatly influenced by the bridge and train shed construction of the day....   [tags: Architecture History]
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1133 words
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Why Crystal Pepsi and Others Failed - Why Crystal Pepsi and Others Failed We live in a day and age where marketing and advertising is stronger then ever. It is essentially in our face every where we turn, from the clothes we wear to the music we listen to and even the device we use to listen to our music. Marketing and advertising touches our lives everyday without our really ever even noticing it. Marketing professionals have a difficult challenge before them in figuring out a way to create a public interest, and a want for their products if they are to become adopted....   [tags: essays research papers] 1365 words
(3.9 pages)
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Failed Product Report: Crystal Pepsi - Failed Product Report: Crystal Pepsi There was a marketing fad in early 1990s equating clarity with purity. Just to name a few, Miller Brewing Co. came up with Miller Clear(March 1993), Coors Brewing Co. came up with Zima Clearmalt (1992), Procter & Gamble came up with Ivory clear liquid hand cleanser and Colgate-Palmolive came up with Clear Sparkling fresh dishwashing liquid. Last but not least, PepsiCo came up with Crystal Pepsi in April 1992. Company Brief Description Pepsi Company (PepsiCo) owns many brands of beverages, snacks and other foods....   [tags: Marketing Business Failure Analysis] 2248 words
(6.4 pages)
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Laura’s Trinity of Escapes in Tennessee Williams’ The Glass Menagerie - Tennessee Williams depicts three main symbols that help his protagonist, Laura, escape from reality in his play The Glass Menagerie. The first symbol that Laura utilizes begins with her father’s departure. When her father left, he left Laura his victrola and his old record collection. The record player helps Laura unwind as the record spins repeatedly on its platform. The second representation of escape occurs when Laura forces herself to become sick and vomit. Laura forces herself into a sickness when she finds herself in uncomfortable situations and this occurs multiple times throughout the play....   [tags: crystal crutch, record player]
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953 words
(2.7 pages)
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The Great Exhibition of 1851 - The Great Exhibition of 1851 sought to provide the world with the hope of a better future. After Europe’s struggle of two decades of political and social upheaval, the Exhibition hoped to show that technology was the key to a better future. The Europeans were excited to display their new innovative technology and show off their progress of industrialization and economic changes. The most popular exhibit was the Crystal Palace; the first monumental structure in Britain that was constructed of uniquely from metal and glass (93)....   [tags: Liberalism, Crystal Palace]
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1316 words
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What Was the Intended Message of the Lothar Crystal and Who Was Its Audience? - The Lothar Crystal, also known as the Susanna Crystal or London Crystal is one of the most highly skilled extant examples of Carolingian engraving ever created and currently apart of the British Museum’s collection. Created in a style that appears to have already dwindling It is a single lentoid of clear quartz that measures some four and a half inches (11.5cm) in diameter and depicts the biblical scenes of Susanna’s Judgement from Daniel 13. There are some very fine flaws running horizontally through scene six and partly into scene seven, and one severe crack through it’s centre....   [tags: quartz, stone, meaning, shown, creation] 1695 words
(4.8 pages)
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Main Purpose of Liquid Crystal Display/Flat Panel Monitors - ... A motherboard allows all the parts of your computer to receive power and communicate with one another; it is a component that makes the computer work. It holds all the components together such as CPU, memory, power supply, switches etc.. Keyboard- In computing, a keyboard is a board that has alphabetical, numerals keys and special purpose keys printed on the membrane layer of the keyboard, the keyboard act as mechanical levers or electronic switches. When you press a button on the keyboard it compresses an electrical switch which activates an electrical circuit, this generates a keystroke signal, processed by the keyboard’s processing chip....   [tags: text and graphics, cpu, computer] 944 words
(2.7 pages)
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P. H. Delamotte Photograph of the Interior of the Crystal Palace - P. H. Delamotte Photograph of the Interior of the Crystal Palace After a successful year of housing the Great Exposition, the Crystal Palace by Joseph Paxton was disassembled and moved to Sydenham, where it stood for the next 85 years (Hobhouse, 32). The Palace, built for the 1851 World's Fair in London, was an architectural and engineering wonder modeled after the bridge and train shed construction of the mid-nineteenth century. The structure had been designed to be quickly assembled out of prefabricated members and easily rebuilt elsewhere....   [tags: Architecture History]
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1320 words
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Lessons from Little Rock by Terrence Roberts, A Brief Chapter Analysis - I Really enjoyed reading this book and following the interesting and inspiring life of its author, Terrence Roberts. The lessons that Roberts presents are for the most part organized chronologically in the book, starting with the Crystal Burger incident and ending with events from his experience a professor at UCLA. Each chapter contains one or more lessons, drawn from his life experiences and commentary, with invaluable information in each. In chapter 14, “Lessons from the Barbershop and Lawn-Mowing Clients”, Roberts discusses how his childhood business, when he was enrolled at Dunbar, was negatively impacted when it became known that Terrence was a member of the Little Rock Nine....   [tags: terrence roberts, Crystal Burger inciden]
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951 words
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Barbara Streisiand's Speech at the 1992 Crystal Awards - Barbara Streisiand's Speech at the 1992 Crystal Awards In Barbra Streisiand's speech at the 1992 Crystal Awards, she expresses discontent with the negative "way women are viewed in a male dominated society". She has a strong dislike for the fact that women and men are respected and admired for reasons that are so alike and defined degradingly different. I understand her anger and I think she is handeling it in the most effective manner possible. She is at the ceremony to present or receive an award....   [tags: Papers] 508 words
(1.5 pages)
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Crystal Blue Persuasion: Breaking Bad Ad - AMC's hit television series, Breaking Bad, has a lot to brag about. After the first airing of the pilot back in 2008, thousands after thousands of people across the globe quickly hopped onto the Breaking Bad bandwagon. Six years and millions of dollars later, the show remains to stand on it's “number one” pedestal. As viewers began to anticipate the final episodes, Breaking Bad's advertising crew came out with a spectacular advertisement that was surely able to up the ante for the last chapter of the empire known as Breaking Bad....   [tags: advertisement, amc, t.v. series]
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1402 words
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Breaking Bad is the Single Dominating Modern-day Television Series America - ... From “Outstanding Lead Actor” to “Outstanding Supporting Actress” the dozens of awards the series' crew was able to wrack up serves as a clear indicator that Vince Gilligan did a noteworthy job of selecting a first-rate line of actors and actresses. By doing so, he was able to successfully execute the vision he sought out for “Breaking Bad.” As viewers watch addicting episode after addicting episode, the show progresses to straddle a line of reality and, “Is that really happening?” With countless events occurring within the series that appear to be too grotesque or twisted to even be possible, viewers must keep in mind that many of the tactful operations “Breaking Bad's” protagonist exe...   [tags: crystal meth, teacher, cancer]
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1077 words
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Influence of Particle Size on Ice Nucleation and Growth During the Freeze-Casting Process - 1. Introduction The templating of porous materials using ice, through the process of freeze-casting, have seen a greatly increased attention during the past few years, regarding not only ceramics, but also polymers1 and metals2. The process is environmentally-friendly, using water as a removable template, highly versatile, and the resulting structures highly tuneable by various tweaks of the process such as an improved control of the nucleation conditions or the use of additives affecting the morphologies of the growing crystals3....   [tags: Research Analysis ]
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1827 words
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Synthesis and Characterization of K2[Ni(CN)4] , K3[Fe(C2O4)3] and Cu(acac)2 Complexes - Synthesis and Characterization of K2[Ni(CN)4] , K3[Fe(C2O4)3] and Cu(acac)2 complexes(IV , V and VI) with different structures and Properties 1. Introduction The aim of this experiment was to synthesize HgCo(SCN)4 , [Ni(en)3]S2O3 , NiCl2(PPh3)2 , K2[Ni(CN)4] , K3[Fe(C2O4)3] and Cu(acac)2 but only K2[Ni(CN)4] , K3[Fe(C2O4)3] and Cu(acac)2 were synthesized and explained in this report. Characterization was then done on each of the 3 synthesized complexes by obtaining their UV-Vis spectrum. The UV-Vis spectrum of each complex would identify different properties and would help to explain the observations made when they were synthesized (for example their colour and how they reacted)....   [tags: Lab Report]
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2827 words
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HIV and X-ray Crystallography - WHAT IS AIDS. AIDS stand for Acquired Immune Deficiency Syndrome ACQUIRED, how. The blood, vaginal fluid, semen, and breast milk of people with the AIDS virus contains enough of the virus to transmit it to another person. Most people who have acquired the AIDS virus have done so by having sex with an infected person, sharing a needle with one, or being born to a mother who is infected. IMMUNE DEFICIENCY. Catching the AIDS virus can be lethal because it affects the immune system, which is the system in the body that fights against diseases....   [tags: Biology AIDS] 1658 words
(4.7 pages)
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Protein Crystallography in the Pharmaceutical Chemistry Field - Protein crystallography has become a mainstream analytical method in assisting the pharmaceutical chemistry field. Specific work on proteases which are instrumental in lead compound discovery have blossomed over the passed two decades as the need for Co-crystallization of target proteins with small molecules is seeing a drastic increase now that their uses in drug design have become fully apparent. Work on phosphorous cleaving and donating enzymes (Kinases and phosphatases) has also become an area of current interest as potential cancer therapy by affecting the energy yield in a cancer cell through interruption of ATP generation....   [tags: crystallization, advancements, drug-design] 938 words
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Physics of Snow - The most basic form of an ice crystal is a hexagonal prism. This form occurs because certain surfaces of the crystal, the growth facets, grow very slowly. The reason these facets exist derives from the molecular structure of water, and how water molecules arrange themselves into a crystalline lattice. The hexagonal prism includes two hexagonal "basal" faces and six rectangular "prism" faces. Note that the hexagonal prism can be "plate-like" or "column-like", if the length along the c-axis is short or long compared to the length along the a-axes....   [tags: physics snow] 2464 words
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Properties of Light - 1. INTRODUCTION With the due course of properties of light, an optimum amount of the energy of the guided light is in form of evanescent waves which are very sensitive to changes occurring in the external environment, forms multilayer structural photonic band gap by propagating electromagnetic waves of certain wavelengths. The electromagnetic (EM) waves with frequencies falling within Photonic Band Gaps (PBGs) [1, 2] cannot propagate through the structure. The localized states can be created in the PBGs by introducing defects into the periodical structures....   [tags: energy, refraction, photonic] 3093 words
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How Does The Basic Physics of LCD Technology and Plasma Works - Until recently people were stuck with large clumsy CRT (Cathode ray tube) devises within their everyday life, within the space of a decade after their move to television screens LCD’s (Liquid Crystal displays) and plasma screens have made CRT Displays obsolete. In this article I will explain in detail how the basic physics of LCD technology and plasma works and compare the two and decide which one is better for your needs. The wide range of applications for LCD displays are used for is impressive; they include computer monitors, televisions, instrument panels and signage....   [tags: screen, sub pixels] 990 words
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The Science of Rocks - ... According to Thompson & Turk (2011), basalt, also commonly known as a mafic rock due to its high levels of magnesium and iron, contains olivine, pyroxene, and Calcium- and sodium-feldspar (37). Granite, on the other hand, is considered a felsic rock due to its high levels of potassium feldspar and quartz, and it not only contains the two mentioned minerals, but also often contains small amounts of biotite, muscovite, or hornblende which give it a speckled appearance. The difference in the mineral composition is apparent in the rocks’ color and grain texture....   [tags: lab exercise in geology]
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926 words
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The Significant and Enduring Impact Louis Pasteur Had on Public Health - ... Fortitude also came in his childhood when a wolf bit his friend and nearly died from rabies (Berche, 2012). Louis Pasteur Education Louis received his bachelor's degree in letters in August of 1840. Louis received his doctoral degree in 1847 with a thesis on crystallography. Pasteur studied how certain crystals affect light and at the age of 26, he started working on his doctoral thesis on crystallography, the study of forms and structures of crystals. Louis began working with two acids commonly found in the sediments of fermenting wine....   [tags: advances in medicines, vaccines]
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1107 words
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causes of life - For biologists, x-ray crystallography has always been a tricky technology. Harder than getting a good beam was growing large crystals of biological molecules-a task that's been compared to building regular structures from wiggly bits of Jello. Today, synchrotron light from facilities such as Berkeley Lab's Advanced Light Source may make it possible to use protein crystals as small as 50 microns (50 millionths of a meter) in length. The crystals themselves may also become easier to grow, thanks to a unique robotic system designed and built by Joseph Jaklevic, head of Engineering Sciences, and his colleagues in the Engineering Division's Bioinstrumentation Department....   [tags: essays research papers] 963 words
(2.8 pages)
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How Chocolate Developed My Love For Science - Science. I like the topic quite a lot, but it’s far too broad for a two page essay – I can and have gone on far longer than that about a single research topic. Now, an essay about the intersection of me and science… Though it’s still an extensive topic, it can be reasonably compressed to a few pages if I skip all the boring details. But all the fun is in the details and I want this to be a fun essay, both for me to write and for you to read. So we’ll have to narrow it down a little further, to how I first came to appreciate science in my everyday life....   [tags: Personal Experience, Autobiography] 753 words
(2.2 pages)
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Report on Copper Toxicity on Sheep or Adlut Lambs - REPORT ON COPPER TOXICITY ON SHEEP OR ADULT LAMBS INTRODUCTION The relationship between copper in grazing sheep and the chronic poisoning resulting in increased death, is key. This report helps to make clear, the major effect of quantity of copper on grazing soil, on animals. The optimum concentration of copper needed for the normal growth and healthy living of lambs and sheep and the importance of copper in grazing animals are addressed in this report....   [tags: acute toxicity, animal loses]
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908 words
(2.6 pages)
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Description of Three Types of MEMS Devices - 1. Three MEMS devices described below are: I. Eco Scan MEMS resonant mirror: MEMS resonant mirror devices have the potential to miniaturize optical systems, such as sensors, displays and printing devices. They integrate the driving actuator into the mirror structure, a small, low power consumption and inexpensive device. The Eco scan MEMS resonant mirror uses the electromagnetic drive method. On a single crystal silicon substrate, a mirror, torsion bars and coils are formed and permanent magnets are placed on the periphery of those parts....   [tags: eco scan mems, sensors, gyro sensor]
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1271 words
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Comparing the Solubility's of Copper Sulphate, Sodium Chloride and Potassium Nitrate - Comparing the Solubility's of Copper Sulphate, Sodium Chloride and Potassium Nitrate Comparing the solubility's of copper sulphate, sodium chloride and potassium nitrate Background Information Molecular solids (sugar) and ionic solids (salts) both dissolve in water. However, they both dissolve in different ways. The intermolecular forces holding molecules of sugar together are relatively weak so when sugar is placed in water these bonds are broken and individual C12H22O11 molecules are released into solution....   [tags: Papers] 968 words
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The Existence of Radiation - Radiation has existed throughout the entire existence of earth. Scientists did not know about radiation until very recently because radioactive materials look the same as non-radioactive materials. It was not until February of 1896, when a French scientist named Antoine Henri Becquerel did an experiment using naturally fluorescent minerals to study x-ray properties, which were discovered by Wilhelm Roentgen, that scientists became aware of the existence of radioactivity. Becquerel “exposed potassium uranyl sulfate to sunlight, and the uranium-bearing crystals were later exposed” The Discovery of Radioactivity....   [tags: Radiation, FRC, RPD]
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Example Science Lesson Plans and Reflection - Lesson Plan 1 Subject: 6th grade Science Standard(s): MS-PS1-1: Develop models to describe the atomic composition of simple molecules and extended structures. 5-PS1-1. Develop a model to describe that matter is made of particles too small to be seen. Objective : Content Objectives: Students will be able to develop a ball and stick model to portray simple molecules and extended structures. Key Vocabulary: Molecule Simple Molecules Extended Structures “Di” “Tri” “Tetra” Materials: Aluminum Foil Marshmallows (different colors) /or Gumdrops Toothpicks 12 Science Processes: Classifying, Observing, inferring, communication, Anticipatory Set/Opening/Hook: Distribute pieces of aluminum...   [tags: objectives, guide, molecules] 3292 words
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The Solubility Curve of KNO3: Lab Procedure - Question: What is the solubility curve of KNO3 Prediction: Draw a sketch to show the shape of the curve you expect for the solubility of a typical solid dissolving in water at different temperatures. Plot solubility on the y-axis and temperature on the x-axis. Materials: Large test tube Balance Stirring wire Two-hole stopper to fit the test tube, with a thermometer inserted into one hole 400mL beaker graduated cylinder or pipette or burette hot plate or Bunsen burner with ring clamps and wire gauze retort stand and thermometer clamp potassium nitrate, KNO3 distilled water Procedure: 1....   [tags: essays research papers] 460 words
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Creating a Star Wars Lightsaber is not Possible Today - The lightsaber is a weapon used in the Star Wars Galaxy. It is basically a saber/sword-like weapon that comprises of a hilt that contains a crystal which is used to focus beams of plasma into a tangible blade which has a finite length and is capable of cutting through a myriad of different materials. Its capacity to cut through material as well as the length of the actual blade of plasma can be altered and reconfigured to each individual's personal liking. The saber is powered through an internal rechargeable battery....   [tags: physics science star wars weapon sword] 2044 words
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Are Abbreviations Affecting English and Its Users? - ... On line 2, of Crystals article, he states that "On the contrary, it improves children's writing and spelling". Is Crystal basically saying that texting improves your writing and spelling. This literally destroys Humphrys claim, that the younger generation will be negatively affected by texting...if it's true. To prove this on line 237-245 of his article, he writes about a study from a team at Coventry University, which have found "positive links between the use of the text language and the skills underlying the success in standard English in pre-teenage children."....   [tags: texting, language, young] 1891 words
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X-Ray Diffraction (XRD) and Its Meaning to the Medical World - X-ray diffraction (XRD) is an analytical method which provides the information about intensity of x-ray versus the angle of scattering of the substance. This characteristic is unique for each material. Therefore one can identify the unknown material by comparing the XRD pattern with the standard XRD pattern3. For the standard, crystalline phases and diffraction pattern of around 50,000 inorganic and 25,000 organic single components are collected and stored on magnetic media 5. The history of the x-ray diffraction begins in the early 20th century....   [tags: theory, scattering, concept] 579 words
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The Importance and Different Types of Lightsabers - One of the most important part of the Star Wars movies is the lightsabers. Every lightsaber is different from the next because the lightsaber is made for the owner. A good description of what a lightsaber can do came from the Star War website and the article “Lightsaber – Info” “In the hands of a Jedi, a lightsaber is almost unstoppable. It can be used to cut through blast doors or enemies alike. Using the Force, a Jedi can predict and deflect incoming blaster bolts, and reflect them back at the firer” (Lightsaber- Info)....   [tags: jedi, star wars, light saber]
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Scrying Oracles of Divination. - Divination has been in use for centuries to gain insight or some knowledge of what is yet to come. The means to do this are vast, from the natural tools found in nature to man-made tarot cards and Ouija boards. These crafts fulfill mankind’s innate desire to foretell future events; a chance glimpse of happy times or impending doom and disaster. Many of the most enduring methods of this ancient practice incorporate the use of natural objects, such as crystals, herbs, the human palm, and astrology....   [tags: Astrology Future ]
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Different Types of Arthritis - ... The hard crystals are a buildup of too much uric acid in your blood. Most of the time, having uric acid it isn’t harmful to the body but once you get too much is when the crystals can form. With the crystals formed, it can cause serious pain in your big toe. It also causes swelling and redness. Being overweight or drinking too much alcohol can be a reason for gout to develop. It has also been proven that eating purines, which is in meat and fish, can also increase your chances on getting gout....   [tags: osteoarthrtis, gout, proriatic]
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Asprin Experiment on Blackboard - Aspirin was prepared according to the protocol provided on Blackboard. The three sections to this experiment were 1. Synthesis of Aspirin, 2. Recrystallization of Aspirin, and 3. Characterization of Aspirin. In the first section, the Synthesis of Aspirin, salicylic acid was weight to be 3.029 grams using mass by difference since it was weighed on a 150 milliliter beaker. 9.23 milliliters of the acetic anhydride and 14 drops of 85 percent phosphoric acid were added to this beaker. A Bunsen burner provided by the laboratory was then used to boil the just mixed combination by producing a flame underneath the positioned beaker on top, and then allowed to cool for several minutes after the Bunsen...   [tags: synthesis, recrystallization, characterization] 898 words
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The Evolution of Technlogy and Mass Media - For the past 50 years technology has evolved in a variety of different ways from bulky to sleek cellular devices, to the way people receive news and communicate. The changes of technology play a big part in the media and how it is used. The technological changes made throughout these time periods have made communication and the media widely spread. The 60s brought along many new changes in the way media is produced. The use of the television in the 60s played a very important role in the media for these times dealt with not only political changes but also social, cultural, and psychological changes....   [tags: Technology ]
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The Concentration of Odium Hydroxide Solution by Titration Against the Primary Standard Ethanedioic Acid-2-Water - The Concentration of Odium Hydroxide Solution by Titration Against the Primary Standard Ethanedioic Acid-2-Water Introduction Titration is a method of analysis that to determine the precise endpoint of a reaction. In a titration, solution was run from a burette into a definite volume of another solution in a conical flask. 1 or 2 drops od suitable indicator (phenolphthalein) is added to indicate the end point. The end point is the stage at which two solutions have just reacted completely....   [tags: Papers] 824 words
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How Does Color Affect Us? - Have you ever wondered why yellow makes you irritated. Why purple makes you feel happy. Why green calms you. Why orange helps you feel energized. Many people think that colors are just colors. But in reality, colors have been useful throughout the years as they have an huge impact on our lives. Many of us need to be aware of colors that surround us in everyday life. According to Elizabeth Walling (January 8, 2011), colors can be used to influence emotions and the feelings around us. That’s why something so simple like the color of a room affects people in several ways including the way they feel....   [tags: Colors, Emotions, Feelings, Psychology]
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The Diamond - The Diamond Diamond is the best known gem. It is known as the “king of gems” for its brilliance and for being the hardest mineral on earth. (Foa, p.50) Its characteristics enable it to be used for many different purposes. Since diamonds are the hardest gems on Mohs’ scale, they make useful tools for industrial purposes, such as drilling hard materials. However, they are quite rare, which makes them very valuable. Their beauty and brilliance make them perfect for jewelry.      Diamond is made up of carbon....   [tags: Diamonds Jewelry]
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Behaviour of Base Metals During Partial Melting - Introduction This essay focuses on the Behaviour of base metals during partial melting in the upper mantle and fractional crystallization in the crustal magma. A base metal is a metal that easily oxidise and reacts with a diluted hydrochloric acid (HCL) to form hydrogen. The examples of base metals include iron, nickel, copper, zinc and lead. The Behaviour of these metals in terms of partial melting and fractional crystallization is discussed by using their partition coefficients. Partition coefficient is the ratio of concentration of an element in a mixture of a phase relative to another phase....   [tags: crystalization, composition] 760 words
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2001 A Space Odyssey Analyzed Sequence - The analysed sequence is from 2001 A Space Odyssey (USA 1968; Stanley Kubrick). The computer HAL is malfunctioning and tries to get rid of the crewmembers. The only survivor is Dave Bowmen, who decides to disconnect HAL, and heads toward the Logic Memory Centre Room. Middle Shot: The camera is above Dave as he begins to remove HAL’s memory blocks. The room is extremely narrow and it is lighted by an aggressive red light, the preponderant colours are black and red. The mise-en.scene guides the audience’s response to an oppressed, stressed and extremely dangerous situation....   [tags: Film Analysis] 999 words
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Producing Fertiliser Experiment - Producing Fertiliser Experiment The aim of this experiment will be to produce a small batch of ammonium nitrate fertiliser using nitric acid and ammonia, and to calculate the percentage yield produced and compare with the theoretical yield. I think we will be able to produce fertiliser however because of the equipment we have available to use it may not be possible to produce a relatively high yield compared to fertiliser produced in industry. Apparatus * 10ml 1M HNO3 (nitric acid) * 10ml 1M aqueous NH3 * Evaporating Dish * Methyl-Orange Indicator * Bunsen Burner, Tripod, and Metal Gauze * Ice cubes * Filter paper, funnel, and...   [tags: Papers] 469 words
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Nephrolithiasis Description and Analysis - Nephrolithiasis is a condition in which stones or crystals, termed as calculi are formed within the renal pelvis or tubular lumen of individuals[1]. Internationally, nephrolithiasis occurs in all parts of the world and the prevalence of it is increasing by year[2], with recurrent rate up to 50% within 5 years and 70% or higher within 10 years[3]. My father, aged 52, was diagnosed with Nephrolithiasis when he was 37 years old. Later, he had his first ureteroscopy laser surgery to remove the stone, in which it was calcium stone and approximately two centimeters in size....   [tags: Nephrolithiasis, renal colic, calcium stone]
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The Physics of Semiconductor Devices - The Physics of Semiconductor Devices The purpose of this paper is to give a greater understanding of the semiconductor world, for Physics 100 students who have a little knowledge of electronics. I will cover conductors, insulators, semiconductors, and the operation of a diode and a transistor. The reason that it is important to understand these devices is the vast effect that they have had on our modern world. Our lives are filled by electronics, especially in this computerized age that we live in, and I have found that a knowledge of some electronics has greatly helped my understanding of the many electronic devices that we deal with on a daily basis....   [tags: Electronics Electricity Science Papers]
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The Importance of Flourite - Minerals are used in everyday life and in almost everything we do. From the manufacturing of the plastic in our toothbrushes we use to brush our teeth in the morning, to the gasoline we put in our cars. Minerals touch our lives throughout the day and in many different ways. Fluorite is no exception. This mineral is used in so many different industries throughout the world and has been important to our daily lives in one form or another since its discovery which can be dated to prehistoric times....   [tags: minerals useful to humans] 1936 words
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Numerical Investigation of Thermal Characteristics of Si Melt Flow in Directional Solidification Process - Numerical investigation of thermal characteristics like temperature distribution , velocity field, stream line, Peclet numbers and Reynolds numbers in Si melt are performed for directional solidification crystal growth processes. One of the greatest technological and scientific challenges of multi-crystalline silicon growth is to achieve homogeneity of the material properties in the grown crystal. It affected by fluctuations of the growth rate of the crystal. One of the possible causes for fluctuations of the growth rate is the instationary convection in the melt....   [tags: temperature distribution, velocity field, steam]
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The Gum Benzoin Tree - INTRODUCTION Benzoic acid was originally obtained from the gum Benzoin tree, and that’s where its name is derived. Benzoic acid (C7H6O2) is a weak carboxylic acid (contains an OOH functional group), which consists of an aromatic ring and is naturally used as a food preservative, therefore its capable of slowing down/halting the growth rate of bacteria that inhibit most foods. Benzoic acid is an organic molecule and in its crystalline (solid) state exists as a white powder, basically looks like tiny white crystals....   [tags: carboxylic acid, charcoal, ] 3188 words
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Biography of Marie and Pierre Curie - ... Pierre pursued his own studies when he wasn’t teaching. Within the first couple of years of teaching he published two papers on crystallography. He didn’t have his own laboratory in which to work, and at the institution space and equipment was scarce. During his off hours, Pierre would sometimes use students’ laboratories or set up his equipment in the hallway (Bailey). Later, Pierre demonstrated that the magnetism of a substance changes at a certain temperature. This is now known as the Curie point....   [tags: life, physics, science, radioactivity] 2002 words
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Investigating the Standard Enthalpy of Potassium Nitrate - Investigating the Standard Enthalpy of Potassium Nitrate Stability --------- Stable. Strong oxidizer - contact with combustible material may cause fire. Incompatible with combustible materials, and strong reducing agents. Toxicology ---------- Harmful if swallowed. May cause reproductive disorders. ------------------------------------------------------- Hazard: oxidizing ----------------- Aim The aim of this experiment is to determine the crystallisation temperature of the solution potassium nitrate at different concentrations and use information to find out the standard enthalpy of potassium nitrate....   [tags: Papers] 1413 words
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Healthy Children with Healthy Mouths - Oral health in children is a very large and growing concern in the world today. Most children in today’s society do not realize the importance of their oral health, and how it can affect their lives. Even worse some parents do not know how important it is to get their children the dental care and attention they need. However, many parents are asking their children’s dentist some very important questions. First-time parents frequently question what thumb sucking and pacifiers’ can do to their child’s teeth and jaw line....   [tags: Oral Health ]
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Abortion Is a Woman's Choice - Today’s society is full of health concerns, unsolved, and controversial issues. Many of these can be viewed in relation to one’s moral, ethic, and religious beliefs, thus creating a society divided by opposing viewpoints. Today in the U.S., abortion is one of the most controversial discussions concerning women simply because it has been said for many years now that abortion should not be legal. Many who oppose abortion do not know what an abortion is, or even why a woman might choose to have an abortion....   [tags: Argumentative, Pro-Choice]
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Development of the Space Shuttle - The development of the Space shuttle has allowed many opportunities to explore the universe. There is so much about the other planets and space that we do not know about. Space shuttles allow people to travel into space and allow things to be sent into space. There has been six space shuttles: Enterprise, Columbia, Challenger, Discovery, Atlantis, and Endeavor. Currently they are all on display at various museums and centers throughout the United States with the exception of the two, Challenger and Columbia, that were destroyed in flight....   [tags: Space Exploration, Space Travel]
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The Skeletal System - The skeletal system includes the osseous tissues of the body and the connective tissues that stabilize or interconnect the individual bones. The bone is a dynamic tissue. Throughout the lifespan, bone adjusts to the physiologic and mechanical demands placed on it by the processes of growth and remodeling. Bone serves the organism at multiple levels: As a system, bones permit the organism to locomote effectively and to maintain posture by bearing loads without deformation, by providing rigid attachment sites for muscles and acting as a system of levers to amplify small movements....   [tags: Basic Pathology]
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Louis Pasteur: Greatest Achievements - To: From: Re: Louis Pasteur Louis Pasteur: Greatest Achievements Louis Pasteur was one of the most important scientists of our time. The foundation of our knowledge about health and disease comes from the discoveries of this one man. He made many discoveries and solutions for problems of the every day life that are still in effect today. Pasteur was born on December 27, 1822 in a little town called Dôle in the foothills of the Jura Mountains of eastern France. When he was five years old his family moved to Arbois where he grew up with his father, mother, and three sisters....   [tags: essays research papers fc]
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Physics of Ski Waxing - Skiing is one of the things to do during the winter, here in Canada. It is also cheap and easy to start, since there are ski-tracks almost everywhere and it is possible to find used skis for less then $50. Skis are pretty simple in design. Originally they were designed just as the snow shoes, though today they are much more advanced. (Wikipedia) Skis can be used just after you bought them, without doing anything to them. However, if you want your skis to perform to their best, simple maintenance needs to be performed....   [tags: physics sport sports ski skiing wax] 1023 words
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