Alloy Definition and Examples in Chemistry

Alloy Definition and Examples in Chemistry An alloy is a substance made by melting two or more elements together, at least one of them metal. An alloy crystallizes upon cooling into a solid solution, mixture, or intermetallic compound. The components of alloys cannot be separated using a physical means. An alloy is homogeneous and retains the properties of a metal, even though it may include metalloids or nonmetals in its composition. Alternate Spellings: alloys, alloyed Alloy Examples Examples of alloys include stainless steel, brass, bronze, white gold, 14k gold, and  sterling silver. Although exceptions exist, most alloys are named for their primary or base metal, with an indication of other elements in order of mass percent. Uses of Alloys Over 90% of metal used is in the form of alloys. Alloys are used because their chemical and physical properties are superior for an application than that of the pure element components. Typical improvements include corrosion resistance, improved wear, special electrical or magnetic properties, and heat resistance. Other times, alloys are used because they retain the key properties of component metals, yet are less expensive. Example Alloys Steel: the name given to an alloy of iron with carbon, usually with other elements, such as nickel and cobalt. The other elements add a desired quality to the steel, such as hardness or tensile strength.Stainless Steel: another iron alloy, which typically contains chromium, nickel, and other elements to resist rust or corrosion.18k Gold: this is 75% gold. The other elements typically include copper, nickel, or zinc. This alloy retains the color and luster of pure gold, yet is harder and stronger, making it better suited for jewelry.Pewter: an alloy of tin, with other elements such as copper, lead, or antimony. The alloy is malleable, yet stronger than pure tin, plus it resists the phase change of tin that can make it crumble at low temperatures.Brass: a mixture of copper with zinc and sometimes other elements. Brass is hard and durable, making it suitable for plumbing fixtures and machined parts.Sterling Silver: is 92.5% silver with copper and other metals. Alloying silver makes it h arder and more durable, although the copper tends to lead to greenish-black oxidation (tarnish). Electrum: Some alloys, like electrum, occur naturally. This alloy of silver and gold was highly prized by ancient man.Meteoritic Iron: While meteorites may consist of any number of materials, some are natural alloys of iron and nickel, with extraterrestrial origins. These alloys were used by ancient cultures to make weapons and tools.Amalgams: These are mercury alloys. The mercury makes the alloy much like a paste. Amalgams may be used in  dental fillings, with the mercury intact, although another use is to spread the amalgam and then heat it to vaporize the mercury, leaving a coating of another metal.

Overview of Corn-Pone Opinions by Mark Twain

Overview of Corn-Pone Opinions by Mark Twain In an essay not published until several years after his death, humorist Mark Twain examines the effects of social pressures on our thoughts and beliefs. Corn-Pone Opinions is presented as an argument, says Davidson College English professor Ann M. Fox, not a sermon. Rhetorical questions, elevated language, and short clipped declarations . . . are part of this strategy. (The Mark Twain Encyclopedia, 1993) Corn-Pone Opinions by Mark Twain Fifty years ago, when I was a boy of fifteen and helping to inhabit a Missourian village on the banks of the Mississippi, I had a friend whose society was very dear to me because I was forbidden by my mother to partake of it. He was a gay and impudent and satirical and delightful young black mana slavewho daily preached sermons from the top of his masters woodpile, with me for sole audience. He imitated the pulpit style of the several clergymen of the village and did it well, and with fine passion and energy. To me, he was a wonder. I believed he was the greatest orator in the United States and would some day be heard from. But it did not happen; in the distribution of rewards, he was overlooked. It is the way, in this world. He interrupted his preaching, now and then, to saw a stick of wood; but the sawing was a pretensehe did it with his mouth; exactly imitating the sound the bucksaw makes in shrieking its way through the wood. But it served its purpose; it kept his master from coming out to see how the work was getting along. I listened to the sermons from the open window of a lumber room at the back of the house. One of his texts was this: You tell me whar a man gits his corn pone, en Ill tell you what his pinions is. I can never forget it. It was deeply impressed upon me. By my mother. Not upon my memory, but elsewhere. She had slipped in upon me while I was absorbed and not watching. The black philosophers idea was that a man is not independent, and cannot afford views which might interfere with his bread and butter. If he would prosper, he must train with the majority; in matters of large moment, like politics and religion, he must think and feel with the bulk of his neighbors or suffer damage in his social standing and in his business prosperities. He must restrict himself to corn-pone opinionsat least on the surface. He must get his opinions from other people; he must reason out none for himself; he must have no first-hand views. I think Jerry was right, in the main, but I think he did not go far enough. It was his idea that a man conforms to the majority view of his locality by calculation and intention.This happens, but I think it is not the rule.It was his idea that there is such a thing as a first-hand opinion; an original opinion; an opinion which is coldly reasoned out in a mans head, by a searching analysis of the facts involved, with the heart unconsulted, and the jury room closed against outside influences. It may be that such an opinion has been born somewhere, at some time or other, but I suppose it got away before they could catch it and stuff it and put it in the museum. I am persuaded that a coldly-thought-out and independent verdict upon a fashion in clothes, or manners, or literature, or politics, or religion, or any other matter that is projected into the field of our notice and interest, is a most rare thingif it has indeed ever existed. A new thing in costume appearsthe flaring hoopskirt, for exampleand the passers-by are shocked, and the irreverent laugh. Six months later everybody is reconciled; the fashion has established itself; it is admired, now, and no one laughs. Public opinion resented it before, public opinion accepts it now and is happy in it. Why? Was the resentment reasoned out? Was the acceptance reasoned out? No. The instinct that moves to conformity did the work. It is our nature to conform; it is a force which not many can successfully resist. What is its seat? The inborn requirement of self-approval. We all have to bow to that; there are no exceptions. Even the woman who refuses from first to last to wear the hoopskirt comes under that law and is its slave; she could not wear the skirt and have her own approval; and that she must have, she cannot help herself. But as a rule, our self-approval has its source in but one place and not elsewherethe approval of other people. A person of vast consequence s can introduce any kind of novelty in dress and the general world will presently adopt itmoved to do it, in the first place, by the natural instinct to passively yield to that vague something recognized as authority, and in the second place by the human instinct to train with the multitude and have its approval. An empress introduced the hoopskirt, and we know the result. A nobody introduced the bloomer, and we know the result. If Eve should come again, in her ripe renown, and reintroduce her quaint styleswell, we know what would happen. And we should be cruelly embarrassed, along at first. The hoopskirt runs its course and disappears. Nobody reasons about it. One woman abandons the fashion; her neighbor notices this and follows her lead; this influences the next woman; and so on and so on, and presently the skirt has vanished out of the world, no one knows how nor why, nor cares, for that matter. It will come again, by and by and in due course will go again. Twenty-five years ago, in England, six or eight wine glasses stood grouped by each persons plate at a dinner party, and they were used, not left idle and empty; today there are but three or four in the group, and the average guest sparingly uses about two of them. We have not adopted this new fashion yet, but we shall do it presently. We shall not think it out; we shall merely conform, and let it go at that. We get our notions and habits and opinions from outside influences; we do not have to study them out. Our table manners, and company manners, and street manners change from time to time, but the changes are not reasoned out; we merely notice and conform. We are creatures of outside influences; as a  rule, we do not think, we only imitate. We cannot invent standards that will stick; what we mistake for standards are only fashions, and perishable. We may continue to admire them, but we drop the use of them. We notice this in literature. Shakespeare is a standard, and fifty years ago we used to write tragedies which we couldnt tell fromfrom somebody elses; but we dont do it  any more, now. Our  prose  standard,  three quarters  of a century ago, was ornate and diffuse; some authority or other changed it in the direction of compactness and simplicity, and conformity followed, without argument. The historical novel starts up  suddenly and sweeps the land. Everybody writes one, and the nation is glad. We had historical novels before; but nobody read them, and the rest of us  conformedwithout reasoning it out. We are conforming in the other way, now, because it is another case of everybody. The outside influences are always pouring in upon us, and we are always obeying their orders and accepting their verdicts. The Smiths like the new play; the Joneses go to see it, and they copy the Smith verdict. Morals, religions, politics, get their following from surrounding influences and atmospheres, almost entirely; not from study, not from thinking. A man must and will have his own approval first of all, in each and every moment and circumstance of his lifeeven if he must repent of a self-approved act the moment after its commission, in order to get his self-approval again: but, speaking in general terms, a mans self-approval in the large concerns of life has its source in the approval of the peoples about him, and not in a searching personal examination of the matter. Mohammedans are Mohammedans because they are born and reared among that sect, not because they have thought it out and can furnish sound reasons for being Mohammedans; we know why Catholics are Catholics; why Pre sbyterians are Presbyterians; why Baptists are Baptists; why Mormons are Mormons; why thieves are thieves; why monarchists are monarchists; why Republicans are Republicans and Democrats, Democrats. We know it is a matter of association and sympathy, not reasoning and examination; that hardly a man in the world has an opinion upon morals, politics, or religion which he got otherwise than through his associations and sympathies. Broadly speaking, there are none but corn-pone opinions. And broadly speaking, corn-pone stands for self-approval. Self-approval is acquired mainly from the approval of other people. The result is conformity. Sometimes conformity has a sordid business interestthe bread-and-butter interestbut not in most cases, I think. I think that in the majority of cases it is unconscious and not calculated; that it is born of the human beings natural yearning to stand well with his fellows and have their inspiring approval and praisea yearning which is commonly so strong and so insistent that it cannot be effectually resisted, and must have its way. A political emergency brings out the corn-pone opinion in fine force in its two chief varietiesthe pocketbook variety, which has its origin in self-interest, and the bigger variety, the sentimental varietythe one which cant bear to be outside the pale; cant bear to be in disfavor; cant endure the averted face and the cold shoulder; wants to stand well with his friends, wants to be smiled upon, wants to be welcome, wants to hear the precious words, Hes on the right track! Uttered, perhaps by an ass, but still an ass of high degree, an ass whose approval is gold and diamonds to a smaller ass, and confers glory and honor and happiness, and membership in the herd. For these  gauds, many a man will dump his lifelong principles into the street, and his conscience along with them. We have seen it happen. In some millions of instances. Men think they think upon great political questions, and they do; but they think with their party, not independently; they read its literature, but not that of the other side; they arrive at convictions, but they are drawn from a partial view of the matter in hand and are of no particular value. They swarm with their party, they feel with their party, they are happy in their partys approval; and where the party leads they will follow, whether for right and  honor or through blood and dirt and a mush of mutilated morals. In our late canvass half of the nation passionately believed that in silver lay salvation, the other half as passionately believed that that way lay destruction. Do you believe that a tenth part of the people, on either side, had any rational excuse for having an opinion about the matter at all? I studied that mighty question to the bottomand came out empty. Half of our people passionately believe in high tariff, the other half believe otherwise. Does this mean study and examination, or only feeling? The latter, I think. I have deeply studied that question, tooand didnt arrive. We all do no end of feeling, and we mistake it for thinking. And out of  it, we  get an aggregation which we consider a Boon. Its name is Public Opinion. It is held in reverence. It settles everything. Some think it the Voice of God.  Praps. I suppose that in more cases than we should like to admit, we have two sets of opinions: one private, the other public; one secret and sincere, the other corn-pone, and more or less tainted. Written in 1901, Mark Twains Corn-Pone Opinions was first published in 1923 in Europe and Elsewhere, edited by Albert Bigelow Paine (Harper Brothers).

Production for Live Events and Television University of the Arts Dissertation

Production for Live Events and Television University of the Arts London - Dissertation Example The researcher affirm that sponsorship, as a marketing niche, increases the company’s visibility in television shows, thus, supports scaling up its products prominence in the marketplace or among consumers. It also affirms that indeed sponsorship is a strategic method of competitive leveraging in marketing a company’s product. While other empirical research affirm sponsorship’s contribution in resource generation for a specific television program and adds to the economic stability of a television company but this largely differ in countries and in the strategies adopted by both sponsoring companies and by the TV companies promoting a trade, brand or product. The survey affirmed, as showed in Q1 result, that majority of the respondents are aware of the sponsorship program within the British television industry and only an insignificant number are not. But notwithstanding this professed awareness, only 50% of these respondents pay attention to the commercials or pr oducts indorsed by the companies that are availing sponsorship as a strategy to leverage with other competitors in the market.