...propulsion systems and has no wheels, axles and transmission. The replacement of mechanical components by wear-free electronics overcomes the technical restrictions of wheel-on-rail technology. Compared with traditional railways, maglev systems have features that could constitute an attractive transportation alternative: 1. High Speed 2. High Safety 3. Less Pollution 4. Low Energy Consumption PROJECT MOTIVATION: Magnetism has fascinated humans for centuries. So we were looking for a project based on the concept of magnetism. The idea for this project came after discussing with the coordinators and reading a Scientific American Article that described proposed maglev systems around the world and their potential for future travel. THEORY OF OPERATION: Maglev is defined as a “family of technologies in which a vehicle is suspended, guided, and propelled by means of magnetic forces”. It consists of two parts: 1. Propulsion System 2. Levitation System The propulsion system used is known as a linear motor. Unlike a conventional motor, a linear motor creates linear motion instead of circular motion. As mentioned above, the major principle behind its operation is magnetic repulsion....
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...CHAPTER 1 INTRODUCTION 1.1 General The micro-emulsion inks have a wide range of applications in industry. The ink used earlier for printing purposes contributes to pollution in environment. The pollution is by means of emission of volatile organic compounds (VOCs) which are present in the form of an aliphatic solvent. Emission of VOCs from these solvents and their discharge in waste streams are quantifiable. For example a typical medium size cold – set web plant uses 40,000 kg per year of the ink of which 6000 kg is lost as emissions. The plant uses over 10,000 kg per year of cleaning solutions all of which is lost in atmosphere. A typical newspaper uses 100,000 kg per year of ink and emits over 8000 kg of volatile solvents (Maji, 2003). VOC when released into the atmosphere participates in the atmospheric photochemical reactions. Ozone is produced at the ground level when oxides of nitrogen and VOCs react in the presence of sunlight. This is a major component of urban smog, which at elevated levels causes a potential hazard to humans, plants and animals. To overcome the problems of emissions due to solvent-based inks and cleaning of presses, a new type of ink based on vegetable oil has been developed which is biodegradable and environment-friendly. It does not contain aliphatic solvents, and hence its use produces virtually no emissions during printing. Also, this ink contains vegetable oil (castor-oil)-based alkyd resins, which are biodegradable and generate no...
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...Maglev can provide this speed and compete directly with airline travel. As stated by American Maglev, "Maglev means magnetically levitated and propelled vehicles. The advantage of maglev is that it can achieve very high speed and acceleration/deceleration performance because the vehicles essentially "fly" at very low altitudes - unlike trains or cars; there is no surface contact or "friction" to slow them down. More speed = more passengers." Only when we have real revenue-producing systems in operation will be able to prove whether this is true or not. In Maglev—which is short for MAGNETIC LEVITATION—high speed vehicles are lifted by magnetic repulsion, and propelled along an elevated guide way by powerful magnets attached to the vehicle. The vehicles do not physically contact the guide way, do not need engines, and do not burn fuel. Instead, they are magnetically propelled by electric power fed to coils located on the guide way. Indeed this is the beginning of the trans- rapid transportation that the human race would view out in the coming centuries. It’s not only just about trains but also the future of high speed trains which would compete with airplanes rather enhancing the leisure part of the whole human race. INTRODUCTION : Magnetic levitation transportation is poised as the next generation of high-speed travel. The...
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...What is a magnet? A body, as a piece of iron or steel that possesses the property of attracting certain substances, as iron. What is magnetism? The properties of attraction possessed by magnets resulting in attractive and repulsive forces between objects State the laws of magnetism The most basic laws of magnetism is that like poles repel one another and unlike poles attract each other. What is the difference between a temporary magnet and a permanent magnet, list and explain A permanent magnet is one that retains its magnetic properties for a long period of time. A temporary magnet only maintains its magnetism while in the magnetic field produced by a permanent magnet or an electric current. Example of permanent magnets: the magnets on our refrigerator used to hold notes on a refrigerator door. These magnets are permanent in the sense that once they have been magnetized they retain a certain degree of magnetism Example of temporary magnets: Paperclips, iron nails and other similar items are examples of temporary magnets. Temporary magnets are used in telephones and electric motors amongst other things List examples of magnetic materials and nonmagnetic materials Magnetic materials: iron, cobalt, nickel, steel, some alloys of rare earth materials Nonmagnetic materials: rubber, plastic, stainless steel, paper, silver, List the basic features of a magnet 1. Magnets attract objects of iron, cobalt and nickel. 2. The force of attraction of a magnet is greater...
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...in to Ohm's Law and solve. More on this later - I’m getting ahead of my self. You may see these written with different symbols, depending upon when a book was written, but this is the way it was taught when my Scout was new. We will get back to formulas later. Now I want to go into electricity’s alter ego. | Ohm's Law: E = I x RPower Formula: P = E x I Magic triangle or circle (click for full-size view with comments) | Magnetism is the force possessed by some materials which enables them to attract or repel certain other materials. Magnets fall into two broad categories: 'natural', like lodestone, and 'artificial', which are magnetized by outside forces. Artificial magnets may further be classed as 'permanent' and 'temporary'. Permanent magnets are made of iron or an alloy or even a ceramic that retains its magnetism for a long time. Temporary magnets are magnets because they are in contact with a magnet, or were recently in contact with...
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...Laboratory Report Magnetism Report from laboratory experiments conducted on 11/02/11 as part of PHSC0152 Sec. 02 Sharon Cameron 11/17/11 1. Aim You will familiarize Yourself with several different kinds of magnets. They will observe the forces of attraction and repulsion between the different poles. I will introduce and we will experiment with the forces of magnetism, electromagnetism 2. Apparatus Magnets, batteries, compasses, suspended magnet, permanent magnet, iron filings, electromagnet, nails, straight wire. 3. Theory Everything in the universe is made of atoms—they are the building blocks of the universe. Atoms are so small that millions of them would fit on the head of a pin. Atoms are made of even smaller particles. The center of an atom is called the nucleus. It is made of particles called protons and neutrons. The protons and neutrons are very small, but electrons are much, much smaller. Electrons spin around the nucleus in shells a great distance from the nucleus. If the nucleus were the size of a tennis ball, the atom would be the size of the Empire State Building. Atoms are mostly empty space. If you could see an atom, it would look a little like a tiny center of balls surrounded by giant invisible bubbles (or shells). The electrons would be on the surface of the bubbles, constantly spinning and moving to stay as far away from each other as possible. Electrons are held in their shells by an electrical force. The protons and...
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...beginning of 1970 & constructed their first test line in 1997. German also started their research on maglev train in early 1970. It took them ten years to complete their first test line. The train works on the principle of electromagnetic effect. In this there is no friction between the train and track. The electromagnet on the underside of train pulls it up to the ferromagnetic stator on the track & levitates the train. The magnet on the side keeps the train from side to side. A computer changes the amount of current to keep the train 1 cm from the track. This means there is no friction between track & train. As it is high speed train compare to other types of train also noise level due to this train very less & energy consume is less, it is very convenient & beneficial to use. CHAPTER 1:-INTRODUCTION 1.1 History:- Magnetic levitation is the latest in transportation technology and has been the interest of many countries around the world. The idea has been around since 1904 when Robert Goddard, an American Rocket scientist, created a theory that trains could be lifted off the tracks by the use of electromagnetic rails. Many assumptions and ideas were brought about throughout the following years, but it was not until the 1970 that Japan and Germany showed interest in it and began researching and designing. 1.2 Concept:- The motion of the Maglev train is based purely on magnetism and magnetic fields. This magnetic field is...
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....INTRODUCTION Magnetic levitation is the latest in transportation technology and has been the interest of many countries around the world. The idea has been around since 1904 when Robert Goddard, an American Rocket scientist, created a theory that trains could be lifted off the tracks by the use of electromagnetic rails. Many assumptions and ideas were brought about throughout the following years, but it was not until the 1970’s that Japan and Germany showed interest in it and began researching and designing. The motion of the Maglev train is based purely on magnetism and magnetic fields. This magnetic field is produced by using high-powered electromagnets. By using magnetic fields, the Maglev train can be levitated above its track, or guideway, and propelled forward. Wheels, contact with the track, and moving parts are eliminated on the Maglev train, allowing the Maglev train to essentially move on air without friction. [pic] FIGURE[1] BASIC PRINCIPLE OF MAGLEV TRAIN Maglev can be used for both low and high speed transportation. The low speed Maglev is used for short distance travel. Birmingham, England used this low speed transportation between the years of 1984 and 1995. However, engineers are more interested in creating the high-speed Maglev vehicles. The higher speed vehicle can travel at speeds of nearly 343mph or 552 km/h. Magnetic Levitation mainly uses two different types of suspension, which are Electromagnetic...
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...INTRODUCTION MAGNETIC LEVITATION TRASPORT, OR MAGLEV, IS A FORM OF TRANSPORTATION THAT SUSPENDS, GUIDES AND PROPELS VEHICLES VIA ELECTROMAGNETIC FORCE Air flights are and will remain beyond the reach of a major section of society, particularly in India. Moreover there are problems of wastage of time in air traffic delays and 2 growing safety concerns. Trends in increased mobility of large masses with changing lifestyle for more comfort are leading to congestion on roads with automobiles. Besides, increasing pollution levels from automobiles, depleting fuel resources, critical dependence on the fuel import and due to a limited range of mobility of buses and cars the need for fast and reliable transportation is increasing throughout the world. High-speed rail has been the solution for many countries. Trains are fast, comfortable, and energy-efficient and magnetic levitation may be an even better solution.Development of magnetic levitated transport systems is under progress in developed countries and it is just a matter of time they make inroads to India as well. Therefore, it will be interesting to know about the science and technology behind mass ground transport system known as "magnetic flight". A LITTLE HISTORY In 1922 a German engineer named Hermann Kemper recorded his first ideas for an electromagnetic levitation train. He received a patent in 1934 and one year later demonstrated the first functioning...
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...-3- Produced by the General Conference Youth Ministries Department 2011 This material is protected by copyright All rights reserved This material may not be reproduced, stored in a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopy, recording, scanning, or other) without the prior permission of the publisher -4- Contents Arts & Crafts -15- Household Arts -61- Nature -79- Recreation -117- Spiritual -167- -5- -6- Introduction It has been more than twenty years since the first edition of the Adventurer Awards Manual was produced at the General Conference for the World Adventurer Ministry. There have been many changes, additions, and improvements during this time. Adventurer Ministry has shown huge growth as well. Youngsters in this age group are full of energy and get excited about being a part of an organization that is designed to expand their view of their world and strengthen their relationship with God, Mom, and Dad through ways that are so much fun. The roof over Adventurer Ministry is supported by several strong pillars. You hold in your hands one of them: the latest updated manual covering all 83 currently accepted Awards for use around the world. There is of course, one small problem: This area of Adventurer fun is not a static field of possibilities, it is a constantly growing—maybe almost exploding—source of activity. Therefore even at the time of this edition’s printing, there are already more Awards being...
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...Magnetic Levitation Emerging Technologies By Nick Presson Introduction Magnetic levitation has been around for years, but with advances in technology it may become a part of everyday life. The main emphasis for magnetic levitation is for transportation. Magnetically levitated ground transportation, or “Maglev”, is an advanced mode of surface high speed transportation whereby a vehicle gliding above a guideway is suspended, guided, and propelled by magnetic forces. Can you imagine a train that that actually floats in air 4 to 6 inches in the air and travels up to 300 mph. This technology can reduce air and highway congestion, air pollution, and petroleum use. Traditional Systems The transportation system in the United States has been much admired around the world. Our extensive highway and air systems have facilitated business and leisure travel and contributed to a high quality of life for many Americans. In 1990, 429 million passengers traveled 342 billion passenger miles on commercial airlines. Americans traveled 2 trillion passenger miles my car, truck, bus, and public transit, and 6.1 billion passenger miles on Amtrak. As population have grown and shifted, however, the traditional systems have become stressed. Congestion on highways and at airports, especially since September 11, not only wastes time and fuel increases, but also constrains mobility to the extent that economic...
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...stick a magnet on the screen of their black-and-white television. The magnet did not stick to the glass, but the picture seemed to be distorted. The closer he held the magnet to the screen, the more the images bent. Fred asked Phil if he could try an experiment with the magnet. When Fred touched the magnet to the screen, the image curved away from the magnet in one direction. When he turned the magnet around and tried again, the image curved away in the other direction. When he waved the magnet back and forth across a part of the screen, the distortion in the images followed the magnet. (CAUTION: Do not try this activity on your own television screen at home.) 1. The image on the television screen is produced when electrons hit the phosphorus coating and cause it to glow. Why did Fred’s magnet affect the image on the screen? __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ 2. Why did the image curve away from the magnet in a different direction when the magnet was reversed? __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ 3. If Fred had two bar magnets, could...
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...PHET Magnetism – Lab Grade Part I: 1. Go to http://phet.colorado.edu 2. Click on electricity and magnetism sims. 3. Select the simulation “Magnets and Electromagnets.” It is at this link http://phet.colorado.edu/new/simulations/sims.php?sim=Magnets_and_Electromagnets 4. Move the compass slowly along a semicircular path above the bar magnet until you’ve put it on the opposite side of the bar magnet. Describe what happens to the compass needle. 5. What do you suppose the compass needles drawn all over the screen tell you? 6. How is the strength of the force/torque on the compass needle indicated? 7. What are the similarities between the compass needle (magnetism) and a test charge (electricity)? 8. Move the compass along a semicircular path below the bar magnet until you’ve put it on the opposite side of the bar magnet. Describe what happens to the compass needle. 9. How many complete rotations does the compass needle make when the compass is moved once around the bar magnet? 10. Click “flip polarity” and repeat the steps above after you’ve let the compass stabilize. 11. Click on the electromagnet tab. Place the compass on the left side of the coil so that the compass center lies along the axis of the coil. (The y-component of the magnetic field is zero along the axis of the coil.) 12. Move the compass along a semicircular path above the coil until you’ve put it on the opposite side of the coil. Describe...
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...Kennetha Wattenbarger Magnetism Lab 19 The white lead of the needle faces the South part of the magnet in a perpendicular way. When the needle is facing the center of the magnet, the lead turns to a 90 degree angle, being parallel to the magnet. When the compass faces the North part of the magnet, the needle turns 90 degrees in the same direction until the red lead if facing towards the North of the magnet. Represent the magnetic field By speed, direction is changed and the faster the needle moves the greater the attraction force is. As like electric charges repel and opposite charges attract each other in electricity, like magnetic poles repel and opposite magnetic poles attract. The Red lead of the needle faces the South part of the magnet in a perpendicular way. When the needle is facing the center of the magnet, the lead turns to a 90 degree angle, being parallel to the magnet. When the compass faces the North part of the magnet, the needle turns 90 degrees in the same direction until the White lead if facing towards the North of the magnet. One complete rotation 9. The compass needle points north 10. The compass needle points north 11. 3 13. The magnetic field that this produces is stretched out in a form of a bar magnet giving a distinctive ...
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...be able to: 1. define what is a magnet 2. identify what kind of materials are being magnetize 3. site some uses of magnet 4. perform the activity with discipline, collaboration and cooperation Background: A magnet is any object that has a magnetic field. It attracts ferrous objects like pieces of iron, steel, nickel and cobalt. In the early days, the Greeks observed that the naturally occurring 'lodestone' attracted iron pieces. From that day onwards began the journey into the discovery of magnets. These days magnets are made artificially in various shapes and sizes depending on their use. One of the most common magnets - the bar magnet - is a long, rectangular bar of uniform cross-section that attracts pieces of ferrous objects. The magnetic compass needle is also commonly used. The compass needle is a tiny magnet which is free to move horizontally on a pivot. One end of the compass needle points in the North direction and the other end points in the South direction. The end of a freely pivoted magnet will always point in the North-South direction. The end that points in the North is called the North Pole of the magnet and the end that points South is called the South Pole of the magnet. It has been proven by experiments that like magnetic poles repel each other whereas unlike poles attract each other. http://www.howmagnetswork.com/ Materials Needed: * Fishing Poles made with meter stick with hanging magnet * Ziploc/ Plastic Bags filled with...
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