America and Manifest Destiny essays

America and Manifest Destiny essays The American idea of "Manifest Destiny" played a very important role in our political dealings with native Americans in general and the Mexican government in particular. The concept of "Manifest Destiny" was for the United States to control the land from "Sea to Shining Sea" or the present day boundaries of the United States. The Americans believed that nothing must stand in the way for them to accomplish this goal. Even if it meant war for the still very young United States of America. When the settlers came over from England they landed in what is now known as the New England territory. After the settlers fully populated this area they decided to move west. However, they didn't care about pushing the Indians out of their homeland once again. In 1803 when the Louisiana purchase took place, the Americans didn't think about the Indians and kicked them out of their new homeland. As the Americans continued to settle the west they also continued to settle the Indians west as well, not once thinking about who founded the land first. To understand the question about our political dealings with the Mexican government one must ask themselves two significant things. Why didn't the war end in August of 1847? Also, What is needed for peace negotiations to be successful? In August of 1847, neither the Americans nor the Spanish wanted to be satisfied with the current outcome. The Mexicans didn't want to give up their homeland that they had just won from Spain and also the honor they had earned during their independence. The Americans really wanted to gain the homeland of Mexico and make it part of the United States. Also at this time, Mexico had a very unstable government and there was also a lack of communication between both sides. In order for peace negotiations to be successful, one side must give in, or both must somehow meet in the middle. During the Mexican-American war, both sides didn't want to cooperate until Santa An...

Italian Degree of Comparison Adjectives

Italian Degree of Comparison Adjectives There are three types of degree of comparison adjectives in Italian: positivo (positive), comparativo (comparative), and superlativo (superlative). Positive Adjectives (Aggettivi di Grado Positivo)Italian positive adjectives are those that do not provide any comparison: Il clima à ¨ mite.The climate is mild. La poltrona à ¨ comoda.The seat is comfortable. Comparative Adjectives (Aggettivi di Grado Comparativo)An adjective is comparative when it expresses a comparison between people, animals, things, different degrees of quality, or diverse actions. With respect to the type of comparison offered, the comparative can be: of maggioranza- expressed by the adverb pià ¹ (placed before the adjective) and the preposition di or the conjunction che (placed before the second term of comparison): Piero à ¨ pià ¹ studioso di Andrea.Piero is more studious than Andrea. Carlo à ¨ pià ¹ pigro che volenteroso.Charles is more lazy than eager. NOTE: Che is preferred instead of da before an adjective, participle, or infinitive. of uguaglianza, expressed by the correlative adverbs (tanto)†¦quanto, (cosà ¬)†¦come: Giulia à ¨ (tanto) bella quanto sua madre.Julia is as beautiful as her mother. Marco à ¨ (tanto) gentile quanto premuroso.Mark is as gentle as he is thoughtful. Luigi à ¨ (cosà ¬) alto come Giorgio.Luigi is as tall as George. of minoranza - expressed by the adverb meno (placed before the adjective) and the preposition di or the conjunction che (placed before the second term of comparison): Sono meno paziente di te.Im less patient than you. Ti considero meno volenteroso che intelligente.I consider you less eager than intelligent. NOTE: The comparatives of maggioranza and minoranza can sometimes be modified, reinforced, or weakened by the adverbs molto, poco, troppo, assai, tanto, alquanto, parecchio, and un po: Mario à ¨ poco pià ¹ grande del fratello.Mario is not much bigger than his brother. Sono molto meno stanco di te.I am much less tired than you. Superlative Adjectives (Aggettivi di Grado Superlativo)Superlative adjectives indicate an exceptional or extraordinary quality. The superlative degree may be assoluto (absolute) or relativo (relative): assoluto when it offers no comparison with other people or things or qualities. It is formed:  »Ã‚  by adding the ending issimo to the adjective dolce- dolcissimo- dolcissimiamara- amarissima- amarissime NOTE: The adjectives ending in co and go retain or lose their guttural sound according to the relevant rules of plural formation: ricco- ricchissimopratico- pratichissimo NOTE: adjectives ending in io, in which the i is tonic, keep the letter in the superlative form: pio- piissimo NOTE: adjectives ending in io, in which the i is atonic, lose that letter in the superlative form: saggio- saggissimo  »Ã‚  in a few instances by adding the ending errimo to the adjective: acre- acerrimo aspro- asperrimo (asprissimo) celebre- celeberrimo integro- integerrimo misero- miserrimo (miserissimo)  »Ã‚  by adding the ending entissimo to adjectives that end in dico, fico, or vole: benefico- beneficentissimo benevolo- benevolentissimo maledico- maledicentissimo malevolo- malevolentissimo magnifico- magnificentissimo munifico- munificentissimo  »Ã‚  by repetition of the adjective: un cane piccolo piccoloa small dog unandatura lenta lentaa slow pace  »Ã‚  prefacing the adjective with adverbs such as molto, assai, estremamente, straordinariamente, enormemente, or oltremodo: un libro molto interessantea very interesting book una gita assai movimentataa very eventful trip un film estremamente realisticoan extremely realistic film  »Ã‚  placing phrases as quanto mai or oltre ogni dire before or after the adjective: una giornata quanto mai noiosaa very annoying day un uomo abitudinario oltre ogni direa creature of habit beyond words  »Ã‚  by adding prefixes such as arci, extra, iper, sopra, sovra, stra, super, or ultra: unopera arcinotaa very well-known work una matita extrafineextra-fine pencil un giornalista ipercriticoa hypercritical journalist uno sforzo sovrumanoa superhuman effort un uomo strariccoan extremely rich man un motore superpotenzea super-powerful engine una politica ultraconservatricean ultra-conservative politician  »Ã‚  with the use of expressions that reinforce the meaning of the adjective: bello da impazzireso good-looking that it makes one crazy matto da legaremad as a hatter pazzo furiosomadman ricco sfondatofilthy rich stanco mortodead tired ubriaco fradicioblind drunk, smashed, blotto relativo when it indicates an exceptional or extraordinary quality; however, it must be in relation to a defined group or restricted to people or things of the same kind. It is formed:  »Ã‚  by prefacing the comparativo di maggioranza or comparativo di minoranza with a definite article and placing a term such as di, tra, or che before the second term of comparison: il pià ¹ serio tra i colleghithe most serious among colleagues il meno spiritoso della compagniathe least witty of the group NOTE:  »Ã‚  the definite article may precede the noun instead of the relative superlative: Quello à ¨ il treno pià ¹ veloce del mondo.That is the fastest train in the world. Quel treno à ¨ il pià ¹ veloce del mondo.That train is the fastest in the world.  »Ã‚  the second term of comparison can be implied: Carlo à ¨ il pià ¹ fortunato (tra gli amici, i colleghi)Charles is the luckiest (among friends, colleagues) There are some  aggettivi  qualificativi  (qualifying adjectives) that, in addition to the normal form of the comparative and superlative, have a Latin-derived form that is preferred in figurative expressions (see table below): la  cima  pià ¹Ã‚  altathe highest peak il  somma  poetathe great poet il  pià ¹ piccolo  sforzothe smallest effort la  minima  importanzathe least significant There are some adjectives that lack the positive (grado  positive) and other forms: POSITIVO  Ã‚  Ã‚  COMPARATIVO  Ã‚  Ã‚  SUPERLATIVO ASSOLUTO-   Ã‚  Ã‚  -   Ã‚  Ã‚  primo-   Ã‚  Ã‚  anteriore  Ã‚  Ã‚  - -   Ã‚  Ã‚  posteriore  Ã‚  Ã‚  postumo-   Ã‚  Ã‚  ulteriore  Ã‚  Ã‚  ultimo Il  primo  dellanno (il giorno che precede tutti gli altri)The first of the year (the day that precedes all the others) i  fatti  anteriori  allaccaduto (precedenti)the facts prior to the incident le zampe  anteriori  del cavallo (davanti)the forelegs of the horse un documento  posteriore  (successivo)a subsequent document le zampe  posteriori  (di dietro)the hind legs unopera  postuma  (pubblicata dopo la morte)a posthumous work ulteriori  chiarimenti (successivi e aggiuntivi)further clarifications lultimo  treno (che viene dopo tutti gli altri)the last train (which comes after all the others) lultima  casa della strada (la pià ¹ lontana)the last house on the street (the farthest) Adjectives that lack a comparative and superlative form include:  »Ã‚  adjectives that indicate material characteristics or qualities: chimicochemical romboidalerhomboidal ironferreo  »Ã‚  adjectives that indicate time periods: giornalierodaily settimanaleweekly mensilemonthly  »Ã‚  adjectives expressing nationalities, religions, or political beliefs: statunitenseU.S. protestanteProtestant comunistaCommunist  »Ã‚  adjectives already altered: grassoccioplump piccolinolittle one grandicellogrown-ups ALTERNATIVE FORMS OF AGGETTIVI QUALIFICATIVI POSITIVO COMPARATIVO SUPERLATIVO ASSOLUTO alto superiore sommo/supremo basso inferiore infimo buono migliore ottimo cattivo peggiore pessimo grande maggiore massimo piccolo minore minimo interno interiore intimo esterno esteriore estremo vicino (viciniore) prossimo

The Origin of the Moon Essay Example | Topics and Well Written Essays - 1250 words

The Origin of the Moon - Essay Example The earliest theory among them is that â€Å"earth had somehow spawned the moon† out (Schrunk, 1). George Darwin, son of the biological evolution theorist, Charles Darwin, had proposed this theory known as â€Å"fission hypothesis† in 1878 (Schrunk,1). This theory was based on the logic that as moon is gradually moving away from the earth (because the time taken by moon to make one revolution around the earth goes on increasing), logically it can be concluded that this is the continuation of an outward momentum initiated by the fission. Hence it is concluded that once moon might have been â€Å"closer to the earth than it is now† (Schrunk, 1). The reason for the split is also well-explained in fission theory. It is speculated that some kind of gravitational imbalance within the earth caused by its previous shape might have made it spit out a piece which became moon. The fission theory is supported by the fact that the core matter of moon is â€Å"not as massive as the earth’s† and also that same nonradioactive stable oxygen isotopes are found on the â€Å"terrestrial rocks† of both earth and moon (Gergo, 4,5). Thus this theory speculates that it was from the less dense mantle of the earth that moon was broken away as a separate entity. The weakness of fission theory is that there is a scientifically proven minimum distance near to the earth below which moon cannot exist in solid form and can exist only as â€Å"a ring of debris† (Schrunk, 1). Hence moon could never be close to earth within this minimum distance and continue to exist as a solid cosmic body. After proving this in 1873, Edouard Roche contested fission hypothesis and put forth the â€Å"co-accretion† theory (Schrunk, 1). Co-accretion theory said that earth and moon most probably might have been formed â€Å"at the same time, in the same neighborhood of the solar system† (Schrunk, 2). This is an assumption based on the similarities in st ructure between earth and moon like the presence of oxygen isotopes. A third theory on the origin of moon was proposed by Thomas.J.J.See (qtd in Schrunk) who theorized that â€Å"moon was †¦ a captured satellite† (Schrunk, 2). This theory was supported by one fact which came to light in that period. It was proven that at least some of the satellites of Saturn and Jupiter might have been captured ones (Schrunk, 2). See’s theory later came to be called as â€Å"capture hypothesis† (Schrunk, 2). This theory says that owing to the gravitational dynamics within and around the area where now the solar system exists, the orbit of moon (which was then far away from the earth) came near the earth (Schrunk, 2). And earth captured moon into becoming its satellite. The fourth and latest hypothesis on the origin of moon is known as â€Å"planetesimal impact hypothesis† and this theory has evolved combining certain features of all the three theories on the origin of moon that were proposed before it (Schrunk, 2). This hypothesis takes the idea that earth was hit by a â€Å"pre-planetory body† of the size of Mars, from the capture hypothesis (Schrunk, 2). It also brings in the argument that this collision had forced out, a huge quantity of debris which is a proposition put forward by the fission hypothesis (Schrunk, 2). And finally the â€Å"planetesimal impact hypothesis† also concludes that this debris â€Å"condensed into moon,† as was suggested partially by the co-accretion hypothesis (Schrunk, 2). The collision is supposed to have happened around 100 million years after the formation of the earth (Wilkinson, 73). This great impct is also thought to have caused the tipping of the axis of the earth and â€Å"inaugurated the seasons† on earth (Wilkinson, 73). This is the theory on moon’s origin which has gained the maximum approval. This is also in the context of many

What are the main characteristics of a successful piece of academic Essay

What are the main characteristics of a successful piece of academic writing as submitted for a university assessment - Essay Example The extensive source of knowledge through acute reference to databases would be the only solution for the information mining. Once the information is gathered it is vital in the case of an academic paper to analyze the information so as to form scientifically justifiable observations and conclusions. A successful piece of academic writing however demands much in terms of style of writing and the research involved. The important characteristics of a quality academic paper are as following An academic paper will have to adhere with many benchmarks as set by the concerned academic authority. Compliance with academic standards, working in accordance with the objectives and properly formatted documentation would be vital in determining the quality of an academic paper. Considering the importance of an academic paper as key document in a particular reserach and taking into account the way this can affect the branch of science dealt with, much emphasis has to be paid on the quality of academic papers. However the difficulty level in the stipulations can differ among different academic authorities. The time management process so as to be able to finish the work within the stipulated deadline is also important. Different academic authorities demand the academic paper to be written in specified style of writing. This requirement however depends on the kind of paper to be written. The nature of science involved with the paper would determine the academic style in which the paper is to be written. The most common academic writing styles include Modern Language Association (MLA), American Psychological Association (APA), Chicago Manual of Style (CMA), Council of Science Editors (CSE), Turabian, American Sociological association (ASA), American Anthropological Association (AAA) and Havard style (CSU, 2006). These styles have been standardized by various organizations so that the papers written by experts across the

Extra-Terrestrial Existence :: essays research papers fc

Has intelligent extra-terrestrial life visited the Earth? Have people actually seen spacecraft from another world? Have these spacecraft abducted human beings and performed experiments on them? Have these spacecraft been recovered by our goverment? Many believe this to be very true. Contrary to these beliefs, there is no physical or any evidence to prove these aliens have visited the Earth. But that does not rule out the existence of intelligent life elsewere in the Universe. There could always be life out there. But way to far away to have visited the Earth. The major reason people believe in aliens is a good reason to believe. This major reason is the sighting of a UFO. UFOs have revolutionized the way people think about aliens. The term UFO means: Unidentified Flying Object. Today the term UFO usually is reffered to an alien spacecraft. These alien â€Å"spacecraft† come in many shapes and sizes. The most common UFO has a disk or saucer shape. They move at very high speeds and appear to spin on an axis. UFO sightings vary from person to person. there have been so many reports of UFO sightings they can’t be counted. But are these sightings really alien spacecraft? The earliest sighting of a UFO is dated back to 213 B.C. Theses sighting were thought to be alien craft. Studies show that these sightings could have been a comet of a meteor. Around 742-814 A. D. "During the reign of Charlemagne, spacecraft took away some of the earth's inhabitants to show them something of the way of life of space people. These events are described in the Comte de Gabalis' Discourses.† Trench 1966. The University of Colorado conducted a UFO report. This elaborate report was lead by Edward U. Condon. Condon states, The decision to etablish this report for the Scientific Study of Unidentified Flying Objects stems from recommendations in a report dated March 1966 of an Ad Hoc Commitee of the Air Force Scientific advisory board set up under the chairmanship of Dr. Brian O’Brien to review the work of Project Blue Book. In this report Condon gives examples of some UFO reports. In 1952, so many UFO reports came in it clogged some Military communication channels. It was believed that an enemy planning a sneak attack could report a bunch of UFO reports to cause mass confusion to the Military communcations. Since 1953 many results of UFO study have been unclassified except when reasons needed to withold evidence because of classified missles or classified radar.

Indicate A Person Who Has Had A Significant Influence On You

Cholera is an infectious disease that causes severe watery diarrhea, which can lead to dehydration and even death if untreated. It is caused by eating food or drinking water contaminated with a bacterium called Vibrio cholerae. Cholera was prevalent in the U. S. in the 1800s before modern water and sewage treatment systems eliminated its spread by contaminated water. Only about 10 cases of cholera are reported each year in the U. S. and half of these are acquired abroad. Rarely, contaminated seafood has caused cholera outbreaks in the U. S.However, cholera outbreaks are still a serious problem in other parts of the world, where cholera affects an estimated 3 to 5 million people and causes more than 100,000 deaths each year. The disease is most common in places with poor sanitation, crowding, war, and famine. Common locations include parts of Africa, south Asia, and Latin America. If you are traveling to one of those areas, knowing the following cholera facts can help protect you and your family. Cholera Causes Vibrio cholerae, the bacterium that causes cholera, is usually found in food or water contaminated by feces from a person with the infection.Common sources include: Municipal water supplies Ice made from municipal water Foods and drinks sold by street vendors Vegetables grown with water containing human wastes Raw or undercooked fish and seafood caught in waters polluted with sewage When a person consumes the contaminated food or water, the bacteria release a toxin in the intestines that produces severe diarrhea. It is not likely you will catch cholera just from casual contact with an infected person. Cholera Symptoms Symptoms of cholera can begin as soon as a few hours or as long as five days after infection. Often symptoms are mild.But sometimes they are very serious. About one in 20 people infected have severe watery diarrhea accompanied by vomiting, which can quickly lead to dehydration. Although many infected people may have minimal or no symptoms, t hey can still contribute to spread of the infection. Signs and symptoms of dehydration include: Rapid heart rate Loss of skin elasticity (the ability to return to original position quickly if pinched) Dry mucous membranes, including the inside of the mouth, throat, nose, and eyelids Low blood pressure Thirst Muscle cramps If not treated, dehydration can lead to shock and death in a matter of hours.Yellow fever is caused by a virus. The yellow fever virus is a single-stranded RNA virus that belongs to the Flavivirus genus. After transmission of the virus occurs, it replicates in regional lymph nodes and subsequently spreads via the bloodstream. This widespread dissemination can affect the bone marrow, spleen, lymph nodes, kidneys, and liver, in addition to other organs. Tissue damage to the liver, for example, can lead to jaundice and disrupt the body's blood-clotting mechanism, leading to the hemorrhagic complications sometimes seen with yellow fever.Yellow fever is transmitted to h umans by the bite of infected mosquitoes. Various species of Aedes and Haemagogus mosquitoes serve as vectors and are responsible for the transmission to human and nonhuman primates, which serve as reservoirs for the disease. Three transmission cycles for yellow fever have been identified. Sylvatic (jungle) cycle: In tropical rain forests, infected monkeys pass the virus to mosquitoes that feed on them. These infected mosquitoes then bite humans who enter the rain forest for occupational (for example, loggers) or recreational activities.Intermediate (savannah) cycle: In humid or semi-humid regions of Africa, mosquitoes that breed around households and in the wild (semi-domestic mosquitoes) infect both humans and monkeys. The virus can be transmitted from monkeys to humans, or from human to human by the mosquitoes. This is the most common type of outbreak in Africa. Urban cycle: When infected humans introduce the virus into urban areas with large numbers of unvaccinated individuals, infected mosquitoes (Aedes aegypti) transmit the disease from human to human. This form of transmission can lead to large epidemics.

Magma Versus Lava How It Melts, Rises, and Evolves

In the textbook picture of the rock cycle, everything starts with molten underground rock: magma. What do we know about it? Magma and Lava Magma is a lot more than lava. Lava is the name for molten rock that has erupted onto the Earths surface - the red-hot material spilling from volcanoes. Lava is also the name for the resulting solid rock. In contrast, magma is unseen. Any rock underground that is fully or partially melted qualifies as magma. We know it exists because every igneous rock type solidified from a molten state: granite, peridotite, basalt, obsidian and all the rest. How Magma Melts Geologists call the whole process of making melts magmagenesis. This section is a very basic introduction to a complicated subject. Obviously, it takes a lot of heat to melt rocks. Earth has a lot of heat inside, some of it left over from the planets formation and some of it generated by radioactivity and other physical means. However, even though the bulk of our planet - the mantle, between the rocky crust and the iron core  - has temperatures reaching thousands of degrees, its solid rock. (We know this because it transmits earthquake waves like a solid.) Thats because high pressure counteracts high temperature. Put another way, high pressure raises the melting point. Given that situation, there are three ways to create magma: raise the temperature over the melting point, or lower the melting point by reducing the pressure (a physical mechanism) or by adding a flux (a chemical mechanism). Magma arises in all three ways - often all three at once - as the upper mantle is stirred by plate tectonics. Heat transfer: A rising body of magma - an intrusion - sends out heat to the colder rocks around it, especially as the intrusion solidifies. If those rocks are already on the verge of melting, the extra heat is all it takes. This is how rhyolitic magmas, typical of continental interiors, are often explained. Decompression melting: Where two plates are pulled apart, the mantle beneath rises into the gap. As the pressure is reduced, the rock begins to melt. Melting of this type happens, then, wherever plates are stretched apart - at divergent margins and areas of continental and back-arc extension (learn more about  divergent zones). Flux melting: Wherever water (or other volatiles like carbon dioxide or sulfur gases) can be stirred into a body of rock, the effect on melting is dramatic. This accounts for the copious volcanism near subduction zones, where descending plates carry down water, sediment, carbonaceous matter and hydrated mineral with them. The volatiles released from the sinking plate rise into the overlying plate, giving rise to the worlds volcanic arcs. The composition of a magma depends on the type of rock it melted from and how completely it melted. The first bits to melt are richest in silica (most felsic) and lowest in iron and magnesium (least mafic). So ultramafic mantle rock (peridotite) yields a mafic melt (gabbro and basalt), which forms the oceanic plates at the mid-ocean ridges. Mafic rock yields a felsic melt (andesite, rhyolite, granitoid). The greater the degree of melting, the more closely a magma resembles its source rock. How Magma Rises Once magma forms, it tries to rise. Buoyancy is the prime mover of magma because melted rock is always less dense than solid rock. Rising magma tends to remain fluid, even if its cooling because it continues to decompress. There is no guarantee that a magma will reach the surface, though. Plutonic rocks (granite, gabbro and so on) with their large mineral grains represent magmas that froze, very slowly, deep underground. We commonly picture magma as big bodies of melt, but it moves upward in slim pods and thin stringers, occupying the crust and upper mantle like water fills a sponge. We know this because seismic waves slow down in magma bodies, but do not disappear as they would in a liquid. We also know that magma is hardly ever a simple liquid. Think of it as a continuum from broth to stew. Its usually described as a mush of mineral crystals carried in a liquid, sometimes with bubbles of gas too. The crystals are usually denser than the liquid and tend to slowly settle downward, depending on the magmas stiffness (viscosity). How Magma Evolves Magmas evolve in three main ways: they change as they slowly crystallize, mix with other magmas, and melt the rocks around them. Together these mechanisms are called magmatic differentiation. Magma may stop with differentiation, settle down and solidify into a plutonic rock. Or it may enter a final phase that leads to eruption. Magma crystallizes as it cools in a fairly predictable way, as we have worked out by experiment. It helps to think of magma not as a simple melted substance, like glass or metal in a smelter, but as a hot solution of chemical elements and ions that have many options as they become mineral crystals. The first minerals to crystallize are those with mafic compositions and (generally) high melting points: olivine, pyroxene, and calcium-rich plagioclase. The liquid left behind, then, changes composition in the opposite way. The process continues with other minerals, yielding a liquid with more and more silica. There are many more details that igneous petrologists must learn in school (or read about The Bowen Reaction Series), but thats the gist of crystal fractionation.Magma can mix with an existing body of magma. What takes place then is more than simply stirring the two melts together, because crystals from one can react with the liquid from the other. The invader can energize the older magma, or they can form an emulsion with blobs of one floating in the other. But the basic principle of magma mixing is simple.When magma invades a place in the solid crust, it influences the country rock existing there. Its hot temperature and its leaking volatiles can cause portions of the country rock - usually the felsic part - to melt and enter the magma. Xenoliths - whole chunks of country rock - can enter the magma this way too. This process is called assimilation. The final phase of differentiation involves the volatiles. The water and gases that are dissolved in magma eventually start to bubble out as the magma rises nearer to the surface. Once that starts, the pace of activity in a magma rises dramatically. At this point, magma is ready for the runaway process that leads to eruption. For this part of the story, proceed to Volcanism in a Nutshell.