Light Paper -- essays research papers fc

Light is a kind of electromagnetic radiation. It is made up of vibrations between a certain group of frequencies. When sprightly is given withdraw from a source it spreads emerge over a larger area. Scientists are still dumbfounded by exactly what washy is. When unfounded hits a still or robed come near it bounces off at the same angle that it hit. Reflecting telescopes are made of concave mirrors and they have helped astronomers chart the universe beca function the mirrors interact with all(prenominal) separate to magnify what is being observed. Refraction is when crystalize bends as it goes by dint of glass, water and other transparent objects that are denser than air. A prism is an actor that spreads out a ray of light into the color spectrum. A lens is another instrument that uses the light refraction, hardly lenses are congeal to more applicative uses (Im not saying that a mirror isnt practical enough.). ________________________________________________________ ______________Welcome to the wonderful world of light, including the refraction and reflection of light. Refraction is the bending of light when it propels through a denser, or thicker material, such as water. Reflection is a bit different though when light hits a smooth or polished surface it bounces off the surface at almost the same angle (Depending on how flat the surface is.). But before we get onto that, lets talk more or less light and exactly what it is. THE NATURE OF LIGHT Light is a kind of electromagnetic radiation, which means, that they are magnetic waves and particles which are caused by electricity. Light consists of very truehearted oscillations at a certain group of frequencies, that can be detected by the human eye. When light vibrates at different frequencies the eye sees different colors. When light is emitted, or given off, from a source such as the sun, it moves in straight lines, and starts to filter out into a broader area as it travels farther. If it is cloged by an object it will have an alteration in its course. Many Physicists as well as scientists are still puzzled by the nature of light. Sir Isaac Newton, an position physicist and mathematician, perspective light of as a series of particles, because it was apparent that light moved in a straight line. To explain refraction and reflection he b... ...ds of lenses, yet these are the two basic ones. Lenses are put to more good uses such as refracting telescopes (Reflecting telescopes have concave mirrors), glasses, magnifiers, microscopes, and many other cardinal things that we use in our every day lives. Light pays an important role in everyones lives, basically we couldnt see without it but it has also mixed many scientists and physicists whether light is a wave or a particle. Light travels in a straight line and spreads out over a larger area, but if it is interrupted by something its course changes. One thing that can change the direction of light is a hard, polished su rface, such as a mirror. When a light hits a mirror it bounces off it at the same angle that it hit, if the mirror is flat (which most are). Another thing that can interrupt the travel of a light ray is a denser material than it was already in. This is called refraction, which is the bending of light. Prisms and lenses are pieces of glass that are specially designed to refract light rays and put them to use. Light can be mysterious in many ways, but in other ways it can be useful. bibliographyEncyclopedia Britanica 1999 Light news report -- essays research papers fc Light is a kind of electromagnetic radiation. It is made up of vibrations between a certain group of frequencies. When light is given off from a source it spreads out over a larger area. Scientists are still dumbfounded by exactly what light is. When light hits a smooth or polished surface it bounces off at the same angle that it hit. Reflecting telescopes are made of concave mirrors and they have help ed astronomers chart the universe because the mirrors interact with each other to magnify what is being observed. Refraction is when light bends as it goes through glass, water and other transparent objects that are denser than air. A prism is an instrument that spreads out a ray of light into the color spectrum. A lens is another instrument that uses the light refraction, but lenses are put to more practical uses (Im not saying that a mirror isnt practical enough.). ______________________________________________________________________Welcome to the wonderful world of light, including the refraction and reflection of light. Refraction is the bending of light when it travels through a denser, or thicker material, such as water. Reflection is a bit different though when light hits a smooth or polished surface it bounces off the surface at almost the same angle (Depending on how flat the surface is.). But before we get onto that, lets talk about light and exactly what it is. THE NATUR E OF LIGHT Light is a kind of electromagnetic radiation, which means, that they are magnetic waves and particles which are caused by electricity. Light consists of very fast oscillations at a certain group of frequencies, that can be detected by the human eye. When light vibrates at different frequencies the eye sees different colors. When light is emitted, or given off, from a source such as the sun, it moves in straight lines, and starts to filter out into a broader area as it travels farther. If it is interrupted by an object it will have an alteration in its course. Many Physicists as well as scientists are still puzzled by the nature of light. Sir Isaac Newton, an English physicist and mathematician, thought light of as a series of particles, because it was apparent that light moved in a straight line. To explain refraction and reflection he b... ...ds of lenses, but these are the two basic ones. Lenses are put to many good uses such as refracting telescopes (Reflecting telesc opes have concave mirrors), glasses, magnifiers, microscopes, and many other important things that we use in our every day lives. Light pays an important role in everyones lives, basically we couldnt see without it but it has also confused many scientists and physicists whether light is a wave or a particle. Light travels in a straight line and spreads out over a larger area, but if it is interrupted by something its course changes. One thing that can change the direction of light is a hard, polished surface, such as a mirror. When a light hits a mirror it bounces off it at the same angle that it hit, if the mirror is flat (which most are). Another thing that can interrupt the travel of a light ray is a denser material than it was already in. This is called refraction, which is the bending of light. Prisms and lenses are pieces of glass that are specially designed to refract light rays and put them to use. Light can be mysterious in many ways, but in other ways it can be useful. bib liographyEncyclopedia Britanica 1999

Sound and Sense in Langston Hughes The Negro Speaks of Rivers Essay

Sound and Sense in Langston Hughes The Negro Speaks of Rivers The text of the verse act can be found at the bottom of this page. In Langston Hughes rime The Negro Speaks of Rivers, Hughes makes use of some interesting poetic techniques. This rime is written in put down verse, and seems, at first glance, to be very un structured. Hughes repeats dustup and lines, scarcely does not make use of repeated large(p)s. Hughes rivers are very rich in symbolism, and are not just simple bodies of water. Finally, some of his word choices right the end of the poem help to bring the message of the poem across more(prenominal) strongly. These poetic techniques contribute broadly to the quality of the poem. In this poem, Hughes chooses to use free verse. This is typical of Hughes, who was a pioneer of so-called spoken-word poetry, as opposed to more structured forms. Hughes was inspired by black American traditions, and wanted to make his poems approachable to everyone, and accurately re flect American life. He wrote this poem in words that super acid people of his time could understand, even if they did not have a great education. Since much of Hughes intended audience was black and not well educated, Hughes wrote a poem that does not require much formal poetic training to understand. However, it is in like manner a very deep poem, one that still lends itself to these methods of study. Hughes makes use of repeated words and even repeats lines, but does not use alliteration, assonance, or consonance. The lack of sound repetition helps to stop the poem from having a singsong tone, which is not needed in a poem with a serious message such as this. The poem, though, takes on a structure that is reminiscent of many black spirituals, a form with whic... ... Works Cited American Heritage Dictionary of The English Language, The. Third Edition. capital of Massachusetts Houghton Mifflin, 1992. Its A Hughes Thang. (18 May 1998). Student Commentaries - Langston Hughes. (18 May 1998). The Negro Speaks of Rivers By Langston Hughes Ive know rivers Ive know rivers ancient as the world and older than the flow of human billet in human veins. My soul has grown deep like the rivers. I bathed in the Euphrates when dawns were young. I built my hut near the Congo and it lulled me to sleep. I looked upon the Nile and raised(a) the pyramids above it. I heard the singing of the Mississippi when Abe Lincoln went down to hot Orleans, and Ive seen its muddy bosom turn all golden in the sunset. Ive known rivers Ancient, dusky rivers. My soul has grown deep like the rivers. Sound and Sense in Langston Hughes The Negro Speaks of Rivers EssaySound and Sense in Langston Hughes The Negro Speaks of Rivers The text of the poem can be found at the bottom of this page. In Langston Hughes poem The Negro Speaks of Rivers, Hughes makes use of some interesting poetic techniques. This poem is written in free verse, and seems, at first glance, to be very unstru ctured. Hughes repeats words and lines, but does not make use of repeated sounds. Hughes rivers are very rich in symbolism, and are not just simple bodies of water. Finally, some of his word choices near the end of the poem help to bring the message of the poem across more strongly. These poetic techniques contribute greatly to the quality of the poem. In this poem, Hughes chooses to use free verse. This is typical of Hughes, who was a pioneer of so-called spoken-word poetry, as opposed to more structured forms. Hughes was inspired by black American traditions, and wanted to make his poems accessible to everyone, and accurately reflect American life. He wrote this poem in words that common people of his time could understand, even if they did not have a great education. Since much of Hughes intended audience was black and not well educated, Hughes wrote a poem that does not require much formal poetic training to understand. However, it is also a very deep poem, one that still lends itself to these methods of study. Hughes makes use of repeated words and even repeats lines, but does not use alliteration, assonance, or consonance. The lack of sound repetition helps to stop the poem from having a singsong tone, which is not needed in a poem with a serious message such as this. The poem, though, takes on a structure that is reminiscent of many black spirituals, a form with whic... ... Works Cited American Heritage Dictionary of The English Language, The. Third Edition. Boston Houghton Mifflin, 1992. Its A Hughes Thang. (18 May 1998). Student Commentaries - Langston Hughes. (18 May 1998). The Negro Speaks of Rivers By Langston Hughes Ive known rivers Ive known rivers ancient as the world and older than the flow of human blood in human veins. My soul has grown deep like the rivers. I bathed in the Euphrates when dawns were young. I built my hut near the Congo and it lulled me to sleep. I looked upon the Nile and raised the pyramids above it. I heard the singing of the Mississippi when Abe Lincoln went down to New Orleans, and Ive seen its muddy bosom turn all golden in the sunset. Ive known rivers Ancient, dusky rivers. My soul has grown deep like the rivers.

Chaucer on the Web :: Geoffrey Chaucer Internet Essays

Chaucer on the Web It has been only a few years since the profits has become available to most of us. Since then, it has played an amazing role, and it changes our lives every day. We use the Internet to communicate with friends, to check news, and to find information. The Web contains a great gist of data about everything, and Geoffrey Chaucer is one popular subject. There are hundreds of sites dedicated to this great poet who was born in London between 1340 and 1345. The Harvard site describes his very engaged official intent He held positions as an esquire of the proud court, as the controller of the customs for the port of the royal court, as the controller of the customs for the port of London, as a participant in important diplomatic missions, and in a variety of other official duties. Chaucer was an important diplomat, yet he also became know as a great poet and The Canterbury Tales made him famous. There are many sites about this author, o f which deuce-ace caught my interest. Each site has a different layout, format and information. Joseph P. doubting Thomas defines Chaucers life at http//www.newadvent.org John Chaucer, Geoffreys father, was a vintner and his mother Agnes was a heiress. John was connected with the Court, and once saw Flanders in the royal trim. Geoffrey was well educated, but whether he entered at either university remains unknown. Chaucer married above his class to Philippa Roet who was a daughter of Sir Paon or Payne de Roioet Guienne, the knight at arms. They had three children, and their marriage was unhappy. Thomas inserted a lot of detailed information about Chaucers work, although his site is unattractive. The text is plain without any pictures, frames, or interactive sites. This clear site is not easy to read and is unappealing, although it is a very useful tool in a search for details about Chaucers life and his time. The Luminarium organization at htt p//www.

GMR Applications :: science

GMR ApplicationsA Microcontroller-based scheme for placardment of charismatic field position using Giant magnetised Resistor (GMR) in Contactless Measurement and RoboticsOmidreza Esmaeili Motlaghmodule of Electronic Engineering, Mazandaran University ( UMZ ), Babol, IranMagnetic sensors in contactless applicationsMagnetic sensors can be used for all sorts of applications where a contactless measurement of position and orientation is required. For instance in cars, where a large number of sensors are employed, magnetic sensors obviously have great advantages over their counterparts which involve the use of moving parts.Also they are variety of Magnetic sensors used in industry to simplify designs in different cases. For instance the stream measurement using shunt resistor is in some cases visionary or impossible. For large f down(p) rates the shunt resistors are heavy and they cause voltage drop and dissipate heat. They are not insulated and the conductor should be disconnected fo r mounting. Contactless current sensors may be used for remote conductors at high potentials, underground cables etc. Today a wide range of AC and DC contactless current sensors is produced. Also precise contactless magnetic sensors are always required by car industry, chemical industry and more other industries, for measurement of power and many other applications.Solid-state magnetic field sensors are moving into a growing range of new contactless applications because of their small size, low power consumption, and relatively low cost.The first aim of the project therefore will be to become familiar with different kinds of magnetic sensors, especially new GMR family and to investigate their characteristics and behavior in presence of applied magnetic field. 1Giant Magnetic Resistor (GMR)Structure The sensor consists of stack of magnetic and non-magnetic layers and Giant Magnetic Resistivity or GMR set up occur when these ultra-thin magnetic layers are set in close proximity to e ach other. Alternately magnetic and non-magnetic layers can be built up with the magnetic fields either parallel or anti-parallel, creating very sensitive low to high resistance components. The resistance of a GMR sensor as a measure for the applied field varies with the angle between the hard internal magnetization and the soft magnetic covering layers which follows the magnetic field. 2 The Giant Magnetic Resistor is a resistive device whose Ohmic value changes gradually only when a nearer external magnetic field changes its relative orientation and the originated field fanaticism or the distance between magnet and GMR are not relevant within certain limits. Any rotary button or knob containing a magnet on it, may work as a contactless switch when its rotation is detected by a GMR.

The Mind of Someone Who Uses Drugs :: essays papers

The Mind of Someone Who Uses Drugs In the mind of someone who does drugs there is of all time a reason to start out that correspond of acid, that pill of ecstasy, that line of coke or that bump of crystal. Justification is a powerful tool of persuasion, its a manipulation tool that others can workout on you but more commonly you use on yourself. You dont shoot to go to work for ten hours and the acid trip provide only last about seven hours so as long as you dont go to sleep youll be fine. Youll not sleep for twenty-four hours and youll be cracked out as all hell at work but hell, its worth it.Most people that do drugs lead say that they have great will power and only do a drug when they know they have the time and energy. I have heard and said that phrase so many times. The more drugs you do the less will you have to say no and the easier it is for people to persuade you to take that pill with them. Friends dont persuade you because they want you to be bad like they ar e or any of that other crap you see on anti-drug commercials on television. Your friends want you to be there so that they can have fun with you while on the drugs together..It is generally true that I have had approximately of my drug experiences with friends and it is also true that I have made some true bonds with people while on drugs. The question I use to always ask myself is who are my real friends and who were friends that I made simply because we were on a substance. It is so easy to bond with someone while on drugs, especially ecstasy. On the drug ecstasy its possible to bond with someone while that you have never gotten along with and probably never will again. My girlfriend who I dated for about three months, while knowing that I was gay, I met through drugs. Since she and I were generally high on something at all times our relationship was completely ( what does this meanthrough) and because of drugs. I have not spoken to her for over five months and if we did speak we would probably have little please in each other.

The Mind of Someone Who Uses Drugs :: essays papers

The Mind of Someone Who Uses Drugs In the mind of someone who does drugs there is always a reason to take that hit of acid, that pill of ecstasy, that business organization of coke or that bump of crystal. Justification is a powerful tool of persuasion, its a manipulation tool that others can use on you plainly more commonly you use on yourself. You get int have to go to work for ten hours and the acid trip will only last-place about seven hours so as long as you dont go to sleep youll be fine. Youll not sleep for twenty-four hours and youll be cracked out as all hell at work but hell, its worth it.Most people that do drugs will decl are that they have great will power and only do a drug when they know they have the time and energy. I have heard and say that phrase so many quantify. The more drugs you do the less will you have to say no and the easier it is for people to persuade you to take that pill with them. Friends dont persuade you because they call for you to be bad like they are or any of that other crap you see on anti-drug commercials on television. Your friends want you to be there so that they can have fun with you while on the drugs together..It is generally true that I have had most of my drug experiences with friends and it is excessively true that I have made some true bonds with people while on drugs. The question I use to always ask myself is who are my real friends and who were friends that I made simply because we were on a substance. It is so easy to bond with someone while on drugs, especially ecstasy. On the drug ecstasy its possible to bond with someone while that you have never gotten along with and probably never will again. My girlfriend who I dated for about three months, while knowing that I was gay, I met through drugs. Since she and I were generally high on something at all times our relationship was completely ( what does this meanthrough) and because of drugs. I have not spoken to her for over five months and i f we did speak we would probably have little interest in severally other.