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The Metallic Ages of the Past

- The Norse “Metallic Ages,” so called because they date the periods when the Norse people are recorded to have been working with metals such as copper, bronze, and iron. We also include the Migration Period, the Age of Heroes, because the happened during the time of the Germanic Iron Age. The Norse Metallic Ages are: The Nordic Bronze Age 1700 BC –500 BC. The Pre-Roman Iron Age 500 BC – 1 AD. The Roman Iron Age 1 AD - 400 AD. The Germanic Iron Age 400 AD – 800 AD. The Migration Period (“The Heroic Age") 400 - 800 AD....   [tags: Norse, Nordic, Romanic, Germanic civilizations]

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Sustainability of Metallic Mining

- Introduction Metallic mining is a vital part of today’s civilization, where so many components of our everyday life put high demands on the natural resources. At current demand and consumption rates the sustainability of metallic minerals is unknown. The article “Assessing the long run availability of copper” and its response “On the sustainability of metal supplies” gives insight to matters that we as a society will be facing in the near future. Summary Paper 1 Tilton and Lagos make note that an increase in population at the current demand will inevitably lead to scarcity....   [tags: trends, limitations, scarcity]

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The Atoms, Ionic, Covalent And Metallic Chemical Bonds Are Formed

- Bonds between atoms affect outer electrons that are shared or transferred to achieve a more stable electrons arrangement as a noble gases. This essay is divided into three main sections it will first describe how the ions, ionic, covalent and metallic chemical bonds are formed. It will then go on to explain the types of bonds which can form given the position of the periodic table and the forces required to hold the molecules together. The final part of the essay will define electron pair repulsion theory and the shapes of molecules....   [tags: Atom, Electron, Ion, Chemical bonding]

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Atoms, Ionic, Covalent And Metallic Chemical Bonds

- Bonding Bonds between atoms affect outer electrons that are shared or transferred to achieve a more stable electrons arrangement as a noble gases. This essay is divided into three main sections it will first describe how the ions, ionic, covalent and metallic chemical bonds are formed. It will then go on to explain the types of bonds which can form given the position of the periodic table and the forces required to hold the molecules together. The final part of the essay will define electron pair repulsion theory and the shapes of molecules....   [tags: Atom, Electron, Ion, Chemical bonding]

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Metallic Hydrogen

- Hydrogen: the most abundant element in the universe. Normally it has been considered to remain a non-metal at any range of temperatures and pressures. That is, until now. Recently this year, hydrogen was changed into a metallic substance, which could conduct electricity. An experiment conducted by William J. Nellis et al. at the Lawrence Livermore National Laboratory accomplished this feat. Hydrogen was converted from a non-metallic liquid, into a liquid metal. The likelihood that the most abundant element in the universe could be converted into metallic form at sufficient pressures was first theorized in 19351, but tangible evidence has eluded scientists in the intervening decades....   [tags: essays research papers fc]

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It 's A Metallic Gold Coin, A Little Bit Bigger Than A Dollar Coin

- It’s a metallic gold coin, a little bit bigger than a dollar coin and smaller than fifty cent piece. On one side a dream catcher is inscribed and on the other a native American prayer that goes,” Great Spirit, Whose voice I hear in the wind, Whose breath gives life to the world, Hear me, I Come to you as one of your many children, I am small and weak, I need your strength and wisdom, May I walk in beauty.” It was given to me by my counselor Randy, who of which I met the beginning of this year and will be forever grateful for his guidance....   [tags: Drug addiction, Drug, Recreational drug use]

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Effectiveness of a segmental thermo-expandable metal alloy spiral stent (Memokath 051TM) and self-expandable covered metallic stent (UVENTATM) in the

- Introduction Ureteral obstruction can be occurred by benign condition such as ureteral stricture, or malignant disease. It is important that decompression of the ureteral obstruction and preserving renal function. First reported of double-J stents as a treatment for ureteral obstruction in 1978[1], Up to recently, ureteral obstruction generally was managed by indwelling double J stents. Advantages of double J stents are easy to inserting and rapid relieving of obstruction. Despite of advantages, they have some adverse side effects....   [tags: Postoperative Complications, Clinical Success]

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The History of Metallica

- The History of Metallica As the nineteen seventies came to a close so did many of the musical styles of that decade. While some faced what seemed to be extinction others went through a sort of evolutionary process. The bands that were at the top of the heavy metal ladder during this time were such acts as Motorhead, Iron Maiden, and Tygers of Pan Tang. These groups would be just some of what the new crop of heavy metal bands would consider inspirational. This style, which is typically referred to as "The New Wave of British Heavy Metal," would fuel and empower many acts to stardom....   [tags: Papers]

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Metallica and Their Place in Rock and Roll History

- The band Metallica is a heavy metal music band formed in 1981 in Los Angeles, California after James Hetfield responded to an ad in June 1981 placed by Lars Ulrich in “The Recycler” a Los Angeles, classified only newspaper. A drummer named Lars Ulrich placed the ad “Drummer looking for other metal musicians to jam with Tygers of Pan Tang, Diamond Head and Iron Maiden.", James Hetfield, answered the advertisement. Before the band had even formed Ulrich asked Metal Blade Records founder if he could record a song for the label's upcoming compilation album Metal Massacre, the request was accepted....   [tags: Music History ]

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- “If you came here to see spandex and big hair, this ain’t your band”, Metallica’s “war cry” throughout the early eighties. While the rest of the hard rock bands wanted to get rich and a lot of women, Metallica, as in the words of former lead guitarist Dave Mustaine, “Our hole existence pretty much was guitar, dominating the world and getting liquored up”. During the late 1970s and early 1980s, there was a new wave a British Heavy Metal entering the cassette and 8-track decks of people everywhere....   [tags: essays research papers]

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- Metallica Introduction Metallica was a band that that started out in the garage of one of the members when they were in high school. The band went through many changes and tragedies and found solutions for them and somehow remained playing. They started in 1980 as one of the first, if not the first Black/Metal band. Their popularity decreased in 1987 and form there they went on to become really popular later on. Summary Metallica started playing in 1980 and are still a band to this day....   [tags: essays research papers]

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Analysis Of Etheridge Knight 's ' Hard Rock Returns '

- Etheridge Knight’s “Hard Rock Returns to Prison from the Hospital for the Criminal Insane” (1968) effectively illustrates the devastation a group of prisoners’ feel as the state of their hero, Hard Rock, is realized. Though he was once the most fearless of the inmates, he is no longer the man he once was due a lobotomy performed by the doctors. Hard Rock is no typical hero, however, he still represents the hope for a future that all the inmates admire. The loss of hope that comes with the destruction of the inmates’ hero is artfully communicated through Knight’s use of tonal shifts representing the shifts in the inmates’ reaction to this situation, the use of diction in the deification of Ha...   [tags: Poetry, Stanza, Metallica, The Inmates]

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Fracture and Fatigue of Amorphous Metals

- Introduction A metallic or amorphous metal is one that lacks a traditional crystalline atomic structure and is instead composed of a microstructure that looks more like a liquid than a solid. As a liquid metal is cooled from the melt, the atoms typically rearrange from a random orientation, typical of a liquid, to a highly structured, lower energy crystalline lattice-type structure. Figure 1.1 a shows the typical crystalline structure of CuZr. Figure 1.1 b shows the same material in a glassy, amorphous arrangement....   [tags: liquid metal, CTOD, chemical, glasses, alloy]

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The Different Types of Chemical Bonds

- An atom. From the smallest to the biggest, every atom (excluding noble gases) shares the same desire: to be able to have a full octet, meaning a filled valence shell of eight electrons. Why. Just like how you are unstable in life when something is missing, atoms are unstable because they are lacking the necessary electrons for an octet. However, these atoms are smart and find a way to get what they want. What they do is what we call today as a chemical bond. The number of valence electrons determine how unstable an atom is, in which determine an atom’s electronegativity....   [tags: atoms, electrons, stability]

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The Integrated Circuit Using LM35 Temperature Sensor Temperature Sensing Method

- ... The metal with large coefficient of expansion is at the outer side of the curve formed during heating and vice versa. The bi-metallic strip can be used as an electrical switch or a mechanical mean of operating a n electrical switch in thermostatic controls and are used extensively to control hot water heating elements in boilers , hot water storage tanks , furnaces and vehicle radiator cooling system etc. the bimetallic thermostat is shown in Figure. Figure 1: Bi-metallic thermostat Thermostat consists of two different metals joined together back to back through welding, brazing or riveting....   [tags: accurate and reliable measurement of temperature]

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Uses and Advantages of Citric Acid

- An acid is a substance that produces H+ to form a solution that has a pH <7. It turns litmus paper red. It reacts with bases to form a salt and water. A weak acid is an acid that dissociates incompletely, releasing only some of its protons(H+). A strong acid is an acid that fully dissociates incompletely, releasing only some of its protons(H+). A base is a substance that can accept (H+) and releases(OH-) to form a solution that has a pH>7. It turns litmus paper blue. It reacts with acids to form a salt and water....   [tags: Acid, Base, Chemistry]

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Bone Tissue Engineering ( Bte )

- Bone tissue engineering (BTE) plays an important role in treating bone diseases related to osteoporosis and other orthopedic treatments. Although several methods are used in orthopedic surgery, some bone transport methods such as autografting and allografting have a certain number of disadvantages. Both are expensive methods and they can be exposed to infections and diseases. Therefore, in stead of using these potential risky methods, bone tissue engineering process are used to treat in orthopedic treatments....   [tags: Stem cell, Cellular differentiation, Bone]

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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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Use Of The Glass Agent Of Glaze

- Color in Glaze Ceramics becomes most compelling through the glazes that cover the cups and pots. There are many steps and prior knowledge needed, however, to reach the final product of a glaze. Before thinking about glaze a bisque fired clay body is needed. Then we think about glaze to put on to it. Glaze is made from four specific properties. These Properties are silica, alumina, flux, and a variable. Silica is the glass agent of glaze. Silica can be used as glass by itself but would need to be heated at a temperature that can not be reached by a normal kiln....   [tags: Oxygen, Oxide, Light, Aluminium]

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Influences of Input Current Frequency

- In this article, influences of input current frequency in an induction heating system were studied by using numerical methods. We used finite element method to solve the governing equations. Obtained results say that this parameter has great influences on the distribution and the amount of generated heat in different parts of induction heating systems. These results also will help us to select the best frequency range for different applications. Induction heating is one of the most popular heating processes for electrical conductive materials (usually a metal) by electromagnetic induction....   [tags: Induction Heating System, Parameters]

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Minearls Found around the World

- ... It is found as copper red on a fresh surface, dull brown or green on a tarnished surface with metallic luster and metallic copper red streak. The natural copper is soft and malleable at 2.3-3 on moh’s mineral scale. Copper nuggets in pure state have been found in Arizona, abundant in Keweenaw Peninsula in northern Michigan, and also found in Canada, Australia, China, Namibia, Bolivia, and Russia. Copper is mined or extracted as copper sulfide in an open pit mine. Taken in large equipment to be cleaned in steam and melted dried and cooled in molds to solidify and then sent off to be used as copper products....   [tags: earth systems]

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Europa, The Possibility of Life

- ... Anne Helmenstine states, “The snow is red due to the presence of Chlamydomonas algae” (“Colored Snow”). It could be possible the algae here on Earth is linked to the red ridges seen on Europa. Also seen on the surface of Europa are eruptions of water vapor. Fecht writes about the Hubble images relating to the geysers: Analysis of Hubble ultraviolet-light images of the moon from 1999 and 2012 suggest that subsurface water sprays out of the moon's south pole in two geysers that are 124 miles (200 kilometers) high, according to the study led by planetary scientist Lorenz Roth of the Southwest Research Institute (SWRI) in San Antonio, Texas....   [tags: Jupiter moons]

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Integrated Circuit with Silcon

- Brief Introduce about how we make an integrated cricuit by silicon. Why we have to use semiconductor. Information is stored in our computing system by binary system, zero and one. So how do the computing system store and operate them. It switch between On and Off, representing one and zero. Semiconductors have a number of unique properties, one of them is their variable conductivity. Their conductivity can be changed through doping and gating etc. We can only perform quick switch between high and poor electrical conductivity on semiconductor....   [tags: semiconductors, carbon nanotube, fabrication]

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Resurrection of Nature and Modernity in Merwin's `drunk in the Furnace'

- Resurrection of Nature and Modernity in Merwin's `Drunk in the Furnace' By Golam Rabbani 29th batch M.A. Session: 2003-2004 Department of English Jahangirnagar Univesity Savar, Dhaka Bangladesh Merwin comes forward to rescue human and humanity with his barrier breaking voice that has been hurled against the harsh walls of reality. He dives into the wreck of himself and the world and creates a new dimension where the resurrection of a modern era appears with a new tone of Nature and harmony....   [tags: American Literature]

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Ways of Transmitting Heat: Conduction, Convection and Radiation

- Conduction, convection and radiation are the three methods through which heat can be transferred from one place to another. The ( first method is the conduction through which heat can be transferred from one object to another object. This process is defined as the heat is transmitted from one to another by the interaction of the atoms and the molecules. The atoms and the molecules of the body are physically attached to each other and one part of the body is at higher temperature to the other part or the body, the heat begins to transfer....   [tags: physics, thermodynamics]

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The Metabolic Activities Of The Four Bacterial Cultures

- Introduction In this experiment, the purpose is to determine the metabolic activities of the four bacterial cultures: Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis and Proteus vulgaris. As well as to understand the basic procedures for aseptically performing the experiment to contain accurate results. To do determine the metabolic activities of the organisms, four tests are conducted. The first test is the fermentation of carbohydrates. The carbohydrates used are glucose, lactose and sucrose....   [tags: Metabolism, Cellular respiration, Bacteria]

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Hollowicked and Arcane Battle Against One Another

- In the following, I will analyse the film Arcane in order to clarify whether it constitutes a fantasy genre. To do so I will concentrate on the characteristics of a fantasy genre. How it can be recognised. Fantasies are what depart from our understanding of reality. To answer the initial question, a closer analysis of the structural elements (cinematography), the narrative approach and the theme of Arcane will disclose if it departs significantly from our understanding of reality. Only if I can discover the answer to this question to be proven, it is possible to proceed with the following question....   [tags: Fantasy Genre, Film Analysis]

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The Master Of Shadows By Cody Blunt

- None Escape Their Shadow: Cody Blunt’s The Master of Shadows Cody Blunt’s piece titled The Master of Shadows represents the assassin, Zed. This art piece was created in 2013 for the company Riot Games as the digital concept art for the character Zed. This piece can be found displayed as a representation of the character in their popular multiplayer online battle arena, League of Legends. In The Master of Shadows, Cody Blunt uses complementary colors, value, saturation, tenebrism, shape, and a small variety of different lines to capture the resting energy of Zed and provides a serene and mysterious interpretation of a lifeless city....   [tags: Color, Light, Color theory, The Shadow]

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The Sociological Imagination : C. Wright Mills

- C. Wright Mills brings about a different way to look at the world, and a different way to place one’s self into it in his work, “The Sociological Imagination”. Mills deliberates and examines the individual role one would play in society as a whole and how it is both the individual and society’s history that must be understood together to see the big picture. Man must look for the “intricate connection between the patterns of their own lives and the course of world history” (Mills, Imagination). This “sociological imagination” brings about a way of thinking that “enables its possessor to understand the larger historical scene in terms of its meaning for the inner life and the external career...   [tags: IPhone, Apple Inc., Mobile phone, Steve Jobs]

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The Range Of Remedies For A Business

- Analyse the range of remedies available to a business in case of breach of contract Case study of Motorsmart Mr Brown asked Motorsmart Ltd to revamp his car and a contract, Mr Brown delivered his car to the company and Motorsmart has started work on it and Motorsmart has spent 8 hours on the car so far on completing the engine service and fitting the full body kit. They paid for the exhaust and the metallic paint from a supplier and are ready to finish the work, the customer phoned the company and told them that he has changed his mind and isn’t going to pay for the job and the customer wants to collect his car the following week....   [tags: Breach of contract, Contract]

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Advanced Imaging Technology is Taking Flight

- Long lines, delays, luggage, metal detectors, people of every culture -- these are all features regularly found at airports around the world, and now a new technology that has the ability to detect objects beneath a passenger’s clothing could become another one of these commonly seen items. These innovative machines were designed at the Pacific Northwest National Laboratory and are called advanced imaging technology or AIT machines. This new type of security method, although steps ahead of previous airport security procedures, has drawn criticism due to concerns with privacy....   [tags: Technology ]

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The Best Acrylic Paint To Buy

- Acrylic paints have become so very popular since its introduction into the public market in the 1950’s. For hundreds of years, the artist had to contend with the peculiarities of their chosen medium. The watercolorist had to contend with paintings very easily damaged by moisture, and the oil painter had to wait an interminable amount of time for his painting to dry. Acrylic paint ………….. Characteristics Acrylic, when thinned with water, becomes a watercolor paint that is permanent when dry. It offers a durability that traditional watercolor pigment could not provide....   [tags: Characteristics, Quality, Brands]

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Commonly Used Composites and Their Characteristics

- The word ‘composite’ does not fully explain the wide range and varied compositions of materials that are categorized under it. This paper deals with some of the commonly used composites. Common materials such as metallic, ceramic and polymers consists of substances that can be classified as composites. The steel family, which is considered as the biggest group of material that is used in construction and complex engineering, is composed of composites that are made out of soft metallic matrix and hard ceramic components....   [tags: material, fibrous, construction]

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Mining Increases Countrys' Revenues and Economy

- ... This phase is the Development Phase. When access roads are constructed and staging areas are prepared, mining can take place. All Mining is correlated with extracting metals from the earth but the proposed mining project may differ in terms of extracting method. Ore deposits at depth underground hence a pit is created to extend below the underground table so groundwater is pumped out to allow active mining phase. During extracting metal takes place, the ‘overburden’ or waste rocks are removed to access to the metallic ore....   [tags: development, harmful, environment]

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Using Fingerprints to Identify Criminals

- Early civilizations used branding to mark criminals to show what he or she was. Thieves were deprived of the hand that was used to commit the crime and ancient romans used tattooing to mark soldiers to prevent desertion of their ranks. Before the 1800s law enforcement officers with visual memories identified previously arrested offenders by sight. Photography lessened the burden on memory but was did not solve the criminal identification problem because personal appearances change. Alphonse Bertillon, a French anthropologist, devised a system to measure and record the dimensions of certain parts of the body....   [tags: patterns, unique, records]

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Descriptive Essay - Original Writing

- “Mom!” I yelled, bolting upright in my bed. Trails of sweat dripped from my forehead, and my torso rose and fell in a rapid succession. I peered into the darkness of my room, ushering my eyes to adjust to its dark tone. I leaned my back against the wooden headboard behind me and held myself in my arms. “Just a dream. Just a dream.” I murmured to myself repeatedly. I reached my hand to the left side of my bed, and fumbled my appendage aimlessly in the drawers that lay there until I was able to retrieve my spectacles....   [tags: Mother, Father, Family, Door]

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The Importance of Sodium

- Have you ever wondered why sodium is so important in our day to day lives. Sodium is one fo the top 5 most commonly used chemical compounds in our surroundings. When you close this page you will know everything about sodium. Atomic Structure: The periodic symbol for sodium is (Na), it’s atomic number is 11 and the mass number for sodium is 22.99, however this can be rounded to 23. In an atom of sodium there are 11 protons, protons are small subatomic particles that have positive charge. There are 11 electrons and 12 neutrons....   [tags: Bonding, Survival, Metal]

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Manufacture Of Iron By Blast Furnace Process

- Manufacture Of Iron By Blast Furnace Process Iron is a naturally occurring element in its ore form (Haematite), however for iron to be of any use the impurities must be removed. This is done by a process involving a blast furnace. Extremely high temperature in the range of 870°C are reached within the blast furnace and this heat causes reactions to occur within the blast furnace that remove some of the impurities from the iron ore. The materials placed in the blast furnace are iron ore, coke and limestone....   [tags: Papers]

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Auto Body Repair

- Auto Body Repair Imagine you’re driving down the road in your brand new car. Another driver pulls out from a side road and suddenly the whole side of your brand new car is twisted and dented from fender to fender. Most people will be in an automobile accident at some point in their lives and they will require the services of an auto-body repairman. Auto body repair is not only the art of taking damaged vehicles and making them drivable and safe, it is also taking old vehicles or worn out looking vehicles and painting and freshening up their overall appearance....   [tags: appearance, body work, metal finishing]

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The Periodic Table Is What All Of The 118 Elements Are Organized On Increasing Atomic Number

- The periodic table is what all of the 118 elements are organized on. All of the elements are sorted in increasing atomic number. Dmitri Mendeleev made the periodic table in 1869 in a way that physical and chemical properties of each element would relate to others in the same period and group. This basically means that the elements repeat certain characteristics, and they are placed in this pattern on the periodic table. The periodic table begins with the element with the lowest atomic number, which is hydrogen, and ends with the elements with the highest atomic number, and in this order, Dmitri Mendeleev discovered the law of periodicity....   [tags: Periodic table, Atom, Electron configuration]

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Synthesis of Natural Rubber/Attapulgite Composite via Combine Latex Compounding and Melt Mixing Using Silylated Method

- Synthesis of Natural Rubber/Attapulgite Composite via Combine Latex Compounding and Melt Mixing Using Silylated Method School of Materials and Mineral Resources Engineering 1. Introduction Composite can be defined as two elements working together to produce material. The material produces will be significantly different in physical or chemical properties from the individual components. Composite materials are generally used for constructions, automotive and consumer products. Composite materials can be divided into three type; polymeric, metallic and ceramic composites....   [tags: materials and mineral resources engineering]

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Experimental Study of Force Convective Heat Transfer of CuO/water Nanofluid in a Microchannel Heat Sink

- Technology progresses in the fields such as: electronic industries, high power engine and optical device that produce high heat flux is in a way that conventional methods are not able to remove the heat generated by these devices and need to advance cooling methods. There are two ways to improve the cooling processes. The first way is design of new cooling device with smaller channel dimensions that causes enhanced convective heat transfer coefficient due to increased fluid velocity [1, 2]. The use of microchannel as a cooling device for dissipating heat from silicon integrated circuit was first proposed by Tuckerman and Pease [3]....   [tags: thermodynamics and technology]

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Comparing Blessing by imtiaz Dharke and Island Man by Grace Nichols

- In this essay I will be comparing two poems which show connections between people and the places in which they live. The two poems I will be comparing and contrasting are “Blessing” by imtiaz Dharker and “Island Man” by Grace Nichols. Both of these poets express their feelings through these poems. Grace Nichols allocates her experiences of how people feel when separated from the environment and place they lived in for such a long period of time. On the contrary Imtiaz Dharker uses the poem “Blessing” to convey the importance of water for less fortunate people....   [tags: Poetry Analysis, Compare/Contrast]

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Tetrapods-like Shape Metal-Semiconductor Nanocomposites Synthesis, Characterization and Photo-Catalytic Applications: Au-CdSe Case

- Although the physico-chemical properties of metal-semiconductor hybrid nanostructures are strongly dependent on their size, shape, composition, and spatial distribution of each component, the find out of new synthetic routes for these hybrid nanostructures has become increasingly important. Several attempts has been devoted in order to obtain different architectures from metal-semiconductor nanocomposites, especially Au-CdSe heterostructure.1-16 In case of nobel metal nanoparticles (NPs) tipped semiconductor quantum rods; Liang et al.1 represents a facile method for synthesis of Au-AgCdSe hybrid nanorods (NRs) through the deposition of silver (Ag) tips at the ends of Au NRs as a seed solutio...   [tags: electric and electronic engineering]

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Analysis and Description of Some Elements of the Periodic Table

- The periodic table tells you many things about an element. Essentially it is used as a section divider to elements, each put under a specific row and column to its properties. This includes its mass, number of protons, neutrons and electrons, period, group, valence electrons... Chlorine is a diatomic molecule of Cl2. There are also 24 isotopes of chlorine, 2 of which are stable isotopes. Chlorine 35 and 37 are both stable isotopes of chlorine. The appearance of chlorine is a highly toxic green/yellow gas a room temperature with a pungent odour....   [tags: magnesium, chlorine, titanium]

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Varied Potentials of Aspergillus Species in Synthesis of Silver Nanoparticles

- ... flavipes (MTCC 1990), A. brevipes (MTCC 1988), A. ochraceus (MTCC 1877) and A.versicolor (MTCC 1759), were obtained from the Microbial Type Culture Collection and Gene Bank, Institute of Microbial Technology, Chandigarh, India, and were routinely maintained in the laboratory on PDA slants (pH 5.6) at 28 °C with regular sub-culturing on fresh media. The stock cultures (5 days old) were grown in Potato Dextrose Broth (PDB) at 28 °C on a rotary shaker (120 rpm) for 96 h. The biomass was harvested by filtration using Whatman filter paper No....   [tags: biomass, cultures, characteristics]

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Kinetics Of Catalysts Used By The Hydrotreatment Of Crude Oil

- Kinetics of Catalysts used in the Hydrotreatment of Crude Oil Jennifer Clark 12/12/2014 2 Table of Contents 1. Introduction ............................................................................................................... 3 2. Catalytic Kinetics ....................................................................................................... 4 3. Catalytic Deactivation ............................................................................................... 6 4. Diffusion of Residual Oil ..............................................................................................   [tags: Catalysis, Chemical reaction, Petroleum]

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How Competitive The Two Companies Have Changed Their Competitive Strategy

- The chart above shows just how competitive the two companies have become. Orders for commercial aircraft can fluctuate depending on many factors such as state of the economy, new products being announced, and mishaps from the manufacturer that cause a concern for customers. The above chart also shows that while orders fluctuate, deliveries have stayed close and consistent since 2003. This is from both companies finding a way to be more efficient in their production and shows how each have changed their competitive strategy....   [tags: Boeing, Airbus, Aerospace, Manufacturing]

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The Effect Of Copper Metal On An Aqueous Nitric Acid

- Discussion: The reactions in the experiments where observed and then proven in the lab. The first reaction involved the combination of copper metal to an aqueous nitric acid. The nitric acid originated as a light blue color, then later changed to a turquoise after the addition of the copper. Then some of the solution turned into gas, which was observed by identifying a light brown gas trapped on the inside of the test tubes sidings. The oxygen combined with hydrogen to form water, while copper II nitrate and nitrogen dioxide....   [tags: Chemical reaction, Chemistry, Hydrogen, Ammonia]

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Executive Puzzles and Games as Promotional Products or Gifts

- Puzzles and games are an excellent way to relax while taking a short break at work. They offer you an opportunity to rest your mind and relieve stress while still remaining professional. Executive puzzles and games are excellent gift items that can also be used as advertising gimmicks. Gift ideas can range from toys designed to be fun and offer relaxation or puzzles designed to get the player into a certain frame of mind. E.g. a chess set or a rubix cube that encourage critical thinking in the user....   [tags: business]

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Extraterrestrial Beings: Cattle Mutilations and Abductions Throughout The World

- Extraterrestrial beings, do they exist, or are they a phantom of our imagination. The existence of extraterrestrial beings has been widely debated; are they real, if so do they visit Earth often, or where do the aliens originate from. All are very common questions. The Roswell case is a very good example of extraterrestrials in contact with humans (Davidson). Extraterrestrials have been pondered about since the beginning of time, with the number of encounters on the rise, it makes you wonder what could happen next....   [tags: UFOs, NASA]

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Understanding the Way Atoms Connect Together to form Compounds

- The whole world is made up of Chemical and Physical bonds and one of the greatest advancements in history is understanding the way atoms connect together to form compounds. In chemical bonding there are two types of bonds that are called Ionic and Covalent bonds. Ionic bonds form when an electrical attraction between two oppositely charged atoms or groups of atoms called Ions. Covalent bonds form when one or more electrons are transferred from one atom to another. Atoms either share pairs of electrons between them or transfer one or more electrons from one atom to another....   [tags: compounds, chemical bonding, atoms]

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Chondrites: The Most Primitive Rocks in the Solar System

- Chondrites give geologists insights on the makeup of the early solar system. Geologists are driven by understanding how the Earth came to be what it is today. Chondrites formed at the time o Introduction Chondrites are the most primitive rocks in the solar system. Chondrites are stony (non-metallic) meteorites that have not been modified due to melting or differentiation of the parent body. Chondrites are formed when dust and small grains that originated from the early solar system accreted to form asteroids....   [tags: geologists, dust, primitive solar system]

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The Effects Of Anthropogenic Carbon Dioxide On Marine Biota

- The Effect of Anthropogenic Carbon Dioxide on Marine Biota The global carbon cycle is one of the most important natural cycles on Earth. It is vital to all life on Earth. One of the key components of this global cycle is the marine carbonate cycle. It is the process that controls the dissolved carbon dioxide in the oceans. The Marine Carbonate cycle is one of the fundamental mechanisms in the worlds’ oceans. It describes how carbon dioxide is dissolved, reacts and how it is stored in the oceans....   [tags: Carbon dioxide, Bicarbonate, Oxygen, Carbon]

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The Theory Of Eo Polymer Based Travelling Wave Mmi

- Adopted from Zhang, Hosseini, Lin, Subbaraman and Chen a. 2- Domain YFDC modulator that is EO polymer based, with lumped element driving electrode. b. EO polymer based travelling wave MMI fed 2 domain directional coupler modulator. The solid red lines and the dashed green lines the area covered by EO polymer that is pooled in opposite directions. c. EO polymer refilled silicon PCW MZI modulator. d. MZI polymer modulator fabricated by UV imprinting and inkjet prints. Silicon/polymer hybrid photonic crystal waveguide modulator with low switching voltage Hybrid silicon and electro-absorption (EO) polymer photonic devices benefit from the large EO coefficient of polymer and compact size made po...   [tags: Optical fiber, Refractive index, Optics]

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Using Full Body Scanners: Is That Really Necessary?

- Since the terrorism attack happened on September 11th 2001, many countries have realized the significance of this serious security issue, and they have begun to crack down on terrorism, and are actively participating in anti-terrorism cooperation for strengthening national security. Scientists have developed technology and research into high performance safeguards. Some fundamental safety equipment is used at the airports for checking out hazardous materials among the passengers. The full body scanner is a typical example being used at airports for safety inspections, and it shows the newest airport security technology....   [tags: Security]

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Wealth and Poverty in Two Still Life Paintings

- RIn Jean Baptiste Simeon Chardines’ Painting,Still Life with Kitchen Utensils and Sebastian Stospkopff’s, Still Life with Empty Glasses there are kitchen tables filled with various materials but the styles vary as well as the depiction of class.One painting depicts upper class life, while the other conveys a more humble village family table. In Jean’s painting unlike Sebastian’s,the kitchen table has on it kitchenware that depicts a humble lifestyle . It conveys the life of a commoner or a village family.The painting includes hanging meat, a pan, dirty clothe, onions,celery,a brown bowl, and a black ladle amongst other things all conveyed using brushstrokes....   [tags: RIn Jean Baptiste Simeon Chardines]

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The comparison between Perodua Alza and Proton Exora

- Malaysia MPV : The comparison between Perodua Alza and Proton Exora CONTENT PAGE 1. Introduction 1.1 Background of the study 2 1.2 Statement of the problem 3 1.3 Scope of the study 4 1.4 Objectives of the study 5 1.5 Research question 6 1.6 Target user 6 1.7 Limitation question 7 & 8 2. Methodology 9 3. Project plan 10 4. Conclusion 10 5. Reference 11 1.1 Background of the study The research topic has chosen is the comparison between Perodua Alza and Proton Exora....   [tags: Automobile Compare&Contrast, Fuel Injection]

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Ecological Concerns Caused by the Canned Tuna Industry

- Introduction Canned tuna quickly grew into one of the most popular seafood products in the United States due to low cost, and its source of protein; making it number two in the top ten consumed sea food products (Campling et al. 2007). Harvesting of the canned Tuna species has raised significant ecological issues and concerns related with economic and environmental sustainability (WWF n.p). Types of Canned Tuna Species There are five main commercial tuna species: Albacore, Yellowfin, Bluefin, Big Eye, and Skipjack....   [tags: environmental issues]

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Unidentified Mineral Samples Subjected to Obervation and Experimentation

- Introduction In this lab, eight unidentified mineral samples are the subject of observation and experimentation. The purpose of this lab is to identify the samples based on the observations and experimentation. This paper will identify each of the samples and briefly discuss each one. Mineral A - Kaolinite Kaolinite, composed of hydrated aluminum silicate, is the result of “sedimentary rocks whose sediments were derived from weathered igneous and metamorphic rocks” (Schroeder, 2013). Much like talc, it is white in color....   [tags: mineral lab]

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Comparison Of Japanese And Europeans ' Feudal Systems

- Summation One way through which both the Japanese and Europeans’ feudal systems were built was via consistent hereditary practices among the ruling classes. This was in the sense that power was continuously retained among the persons at the top positions of office. The alignment of authority was such that the noble family was at the top position, and the warriors were situated at the second position of command in these systems of rule among both the Europeans and Japanese. The persons who fell at the bottom position were referred to as the serfs or the tenant farmers owing to the fact that these individuals were considered to have very little power and authority within their distinctive area...   [tags: Feudalism, Nobility, Warrior, Fief]

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Analysis Of ' Dracula ' By William Shakespeare

- The novel Dracula is a novel that is made up of various sounds. The sounds may vary, but they are common in their unfamiliarity. Such as the foreign slang of Quincy Morris that captivates Lucy or the alarming barking of the dog during the funeral of the sea captain. The influence that Dracula has over others through sound is seen repeatedly throughout the novel. He achieves this with the supernatural usage of technology, such as the creation of living mediums. Whether it be a human or animal his result is the same....   [tags: Dracula, Abraham Van Helsing, Mina Harker]

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The Movements of the 20th Century Culture

- How many of us can recall the most important events that occurred in the 20th century. A century that was full of many innovations; most importantly, these events made a tremendous impact in our lives as of today. The 20th century contributed an abundance of improvements to our culture. In addition, the progressions of the advancement helped society lives to better, such as the industrialization, the remarkable inventions that made our lives easier. Nevertheless, the 20th century presented a copious amount of remarkable artists that introduced us to many arts that were modernism and postmodernism; such as Pablo Picasso his work of art were considered a modern art, and Marcel Duchamp involved...   [tags: Cultural History]

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Measuring Mecury Levels in Mothers and Newborns

- Our study showed that 203 newborns (13%) and 176 mothers (11.2%) had mercury concentrations greater than the Environmental Protection Agency (EPA) reference dose of 5.8 µg/lL (US EPA, 2007). However, there have arguments that this limit should be lowered to account for pharmacokinetic variability in cord: maternal ratio (Stern and Smith, 2003). The German Federal Environmental Agency set newly revised mercury reference values of 2.0μg/l for women (18-69 years) who at least consume fish ≤ 3 times per month (Wilhelm et al., 2004)....   [tags: Child Development]

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The Controversy Over New Airport Security Measures

- The country’s recently heightened airport security measures have become a source of controversy and debate across the Nation. Due to a recent attempted act of terrorism, where a man on an international flight to Detroit attempted to blow up the plane using a bomb, the department of homeland security has taken new measures to ensure national security in the form of new high- tech full-body scans and pat down procedures in airports. The new body scanning machines create images of people without their clothing, and the new pat down procedure is generally considered too personal....   [tags: National Security]

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The Argument from Design, by William Paley

- During the 1800th century, William Paley, an English philosopher of religion and ethics, wrote the essay The Argument from Design. In The Argument from Design, Paley tries to prove the existence of a supreme being through the development of a special kind of argument known as the teleological argument. The teleological argument is argument by analogy, an argument based on the similarities between two different subjects. This essay purposefully attempts to break down Paley’s argument and does so in the following manner: firstly, Paley’s basis for the teleological argument is introduced; secondly, Paley’s argument is derived and analyzed; thirdly, the connection between Paley’s argument and th...   [tags: Teleological Argument, Supreme Being]

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Corrosion Inhibitor for Steel and the Environment

- 1. Introduction The use of acid solution during pickling and industrial cleaning leads to corrosive attack on mild steel[1]. Acid solutions are widely used for different applications in industries such as pickling, acid cleaning of boilers, descaling and oil well acidizing. Hydrochloric and sulfuric acids are the most common types of corrosive acids used in such industrial operations [2]. Organic compounds are usually used to protect metal against corrosion as inhibitors in acidic media[3]. The efficiency of an organic compound as a successful inhibitor is mainly dependent on its ability to get adsorbed on the metal surface....   [tags: acid solution, metal, industrial cleaning]

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Refining Differences Between Copper, aluminum, and Steel

- The process varies when extracting copper from copper ore to obtain a preferred purity level of the final product. However the most common type of process in the United States is called Smelting. This is only achieved once the copper ore has been processed to a specified concentration level. This is done by grinding the ore into a concentration of slurry with chemical agents and water. The copper will float to the top of the slurry mixture when air is blown through the mixture and a frothed layer or a foaming layer allows the copper to attach and overflow the tank, this is called ore benefaction....   [tags: minerals, smelting, ore benefaction ]

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The Elements and Health Benefits of Potassium

- Potassium is an element on the periodic table that is symbolized by the letter K. The atomic number of this element is 19. At room temperature this element is a solid. Potassium can be found in two forms: either pure or compounds. Pure potassium is described as a soft silvery-white alkali metal that oxidizes rapidly in air and is very reactive in water However, Potassium forms many compounds such as Potassium chloride, which is the most common potassium compound (Gagnon, 1). This form of Potassium is especially used in fertilizers as a salt substitute....   [tags: atomic number, forms, chemistry]

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How to Set Up Your Dining Room

- ... Here are a few tips to select each piece of furniture that you would need in your dining room. Dining table – Your ideal dining table top should have the space to hold the food plus plates, glasses and cutlery for the all members in the household and a couple of guests comfortably. Your dining table should be able to sit that many people as well. You should take care to select a table not so big that after everyone is seated, there is no place to walk around the room. Measure the length and breadth of your dining room wall-to-wall....   [tags: styke, funiture, space, budget]

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The History of the Cult Gun Company

- Colt Gun Company paper What would you do without the modern day revolver. Samuel Colt was one of the best gunmakers and had an even better gun company. Samuel Colt was such a skilled gunsmith by making the revolving cylinder and by getting a good manufacturing plant(Lee). Also he made many guns. Some other things he did was by selling the guns directly to the soldiers, and by selling some his weapons to the United States military. Samuel Colt revolutionized the gun company because he made the revolving cylinder, he persevered his company, and he made perfected and perfected his and other companies gun designs....   [tags: revolver, design, army]

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Observations and History of the Blow Fly

- Blow fly Include a number of species including the common bluebottle fly, Calliphora vomitoria (Linnaeus) the green bottlefly, Phaenicia sericata (Meigen) and others. Adult flies are metallic blue, green, copper or black colored flies that otherwise resemble house flies in appearance. Adult:Blow flies are a diverse group ranging from 6 to 14 mm in length and generally having a metallic sheen to their bodies. The black blow fly has a dark, olive-green body, black legs, and orange pubescence around the mesothoracic spiracles....   [tags: species, habitats, larvae]

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Applications of Physics in Daily Life

- In real life situations, there are many applications of physics. Physics is applied in almost everything we do and everything around us from household chores, in school and in professional practices like engineering. It ranges from simple applications like boiling water to complex professional ones like road and rail construction. Some of the most common applications are as discussed below. Water and well pumps Water and well pumps are utilized to draw water from a profundity where the water table is a few feet underneath the range of provision....   [tags: water pumps, motor coolant, auto breaking]

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An Analysis of McDonalds Health Menu

- McDonalds is one of the most well known fast food restaurants in the world. It is so popular that it sells seventy-five hamburgers every second and is shockingly also the worlds largest toy distributor (Lubin, and Badkar.) The powerful company is an overwhelming influence not only in the worlds economy, but also the worlds holistic lifestyle and health; therefore, McDonalds must be carefully monitored-carefully monitored meaning every move, every change, every single action the company makes needs to be a healthy one....   [tags: fast food, mcdonalds, restaurant]

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The History and Production of Hydrogen

- Hydrogen gas was first identified as an element in 1766, by British scientist Henry Cavendish, in an experiment wherein he separated hydrogen gas by reacting zinc metal plates with hydrochloric acid. Cavendish found that when he applied a spark to the resulting hydrogen gas, it yielded water. It wasn’t until some years later that French chemist Antoine Lavoisier gave hydrogen its modern name. The word hydrogen is derived from the Greek words ‘hydro’ and ‘genes’, which translate as ‘born of water.’ In 1800, two English scientists, William Nicholson and Sir Anthony Carlisle, discovered electrolysis....   [tags: electric, gas, energy]

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Physicist Heike Kamerlingh Onnes and Superconductivity

- In 1911, Dutch physicist Heike Kamerlingh Onnes discovered that the resistance of mercury absolutely disappears at temperatures below about 4K. This phenomenon is called superconductivity; correspondingly, materials which have this property would be called superconductors. Because of this great discovery, in 1913, he won a Nobel Prize in physics for his research in this area. [2] The technological development of superconductivity was hampered by the cost of producing the extremely low temperatures required to achieve the effect....   [tags: technological development, phenomenon]

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Surface Plasmon Resonance And Its Application

- Abstract: The phenomenon of free electron-photon oscillations, discovered in the 1900’s has changed the way we think about metals. Metals are no longer considered as devoid of optical properties. Applications of these properties have been reported in multiple disciplines. In this report, we discuss the phenomenon of surface plasmon resonance and its application in various sensors. Introduction to Surface Plasmons During an experiment conducted by Wood [1], an anomaly in the fringe pattern formed by light reflected by a mirror with diffraction grating was observed....   [tags: Refraction, Total internal reflection, Snell's law]

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An Investigation Of An Unknown Report

- During a lab in my Microbiology class, we got the chance to do what is called an Unknown Report. It is a report of an unknown sample of bacterial that we performed different tests on to identify the bacterial species. By following the important steps of aseptic technique in all tests, we were able to identify the unknown bacteria. These tests involved different petri dish agars, broths, and slants to know what kind of bacteria we had. As a result, we identified our bacteria as an Escherichia coli....   [tags: Escherichia coli, Bacteria, Gram staining]

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The Man 's Right Arm Free

- “I’m going to adjoin your right and left wrists, together, now, pig,” she tells the man, “you will not be able to do anything, even with your right arm free for less than a few seconds, so don’t try it.” She unlocks the clasp that affixes the man’s right wrist to the table and leads his hand toward the center to meet his left wrist. She the quickly fastens them both together, so that the man is fully-shackles, as a prisoner in transit in modern America would be. “Lift your legs and swing them to your left,” the librarian commands the man, “Do not attempt to get off the table from the side on which I’m currently standing.” She breathes impatiently, “Do it, now.” The chains clink as the man...   [tags: Fuck, Profanity, Plumbing, Toilet]

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The Foucault Pendulum: Jean Foucault

- A student with a compulsive longing for the explanations of why and how things work is a science professor’s dream student. Thus, it would make sense for the first few steps within the science building to intensify that essential characteristic of its students by its very construction. The foyer of the science building evokes this sense of scientific wonder and rational thought through its methodical design, which is embodied at its center by a Foucault pendulum. The Foucault pendulum is named after the French physicist Jean Foucault, who first used it in 1851 to demonstrate the rotation of the Earth....   [tags: earth rotation, physics]

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