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Levitation Magnetic:     more books (100)

Magnetic Levitation Technology and Transportation Strategies (S P (Society of Automotive Engineers)) Magnetic levitation: An entry from Thomson Gale's <i>Gale Encyclopedia of Science, 3rd ed.</i> by David E. Newton, 2004 Maglev Train Technologies and High-Speed Rail Programs: A Comprehensive Guide to Advanced Magnetic Levitation Technology, Benefits, and Advantages (Ringbound Book and CD-ROM Set) by U.S. Department of Transportation, Federal Railroad Administration (FRA), 2010-07-06 The Transrapid Magnetic Levitation System: A technical and commercial assessment (Working paper) by Brian D Sands, 1992 Safety of high speed magnetic levitation transportation systems U.S. maglev system concept definitions (SCDs), system safety review (SuDoc TD 3.15:93/22) by U.S. Dept of Transportation, 1993 Optical Levitation: Arthur Ashkin, Radiation Pressure, Electrostatic Levitation, Magnetic Levitation, Acoustic Levitation Technical background for a demonstration magnetic levitation system (SuDoc NAS 1.26:178301) by Colin P. Britcher, H.R. 4549--the Magnetic Levitation Transportation and Competitiveness Act of 1990 : hearing before the Subcommittee on Transportation, Aviation, and Materials ... June 7, 1990 (SuDoc Y 4.Sci 2:101/128) Design, construction, and testing of a combined magnetic levitation and propulsion system (Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Thesis. 1977. B.S) by Michael Atlas, 1977 Magnetic levitation based on magnetic potential well (MPW) effect (SAE) by V. S Mikhalevich, 1991 Magnetic levitation transport of mining products (SuDoc I 28.23:9555) by J. J. Geraghty, 1995 Safety of high speed magnetic levitation transportation systems: Magnetic field testing of the TR07 maglev vehicle and system by Fred Dietrich, 1992 A magnetic levitation silicon wafer transport system by Ing-yann Albert Wang, 1993 High speed rail in Japan: A review and evaluation of magnetic levitation trains (Working paper / University of California Transportation Center) by Mamoru Taniguchi, 1992

lists with details

21. Magnetic Levitation
    New highspeed trains without rails or wheels go 300 mph.  
    http://www.acfnewsource.org/science/mag_lev.html

22. Magnetic Levitation Haptic Interfaces
    You are being sent to the new magnetic levitation Haptic Interfaces web site at http//www.msl.ri.cmu.edu/projects/haptic/.  
    http://www.cs.cmu.edu/~msl/haptic/haptic_desc.html

23. Magnet Man - Cool Experiments With Magnets
    Experiments with magnetic levitation. How can you magnetically levitate objects? Donut magnets expt.gif (888 bytes); Levitating Train expt.gif (888 bytes)  
    http://www.coolmagnetman.com/magindex.htm
    
    Extractions: Cool Experiments with Magnets This web site is devoted to magnetism and the cool experiments you can do with permanent magnets and electro-magnets. Some of the experiments are very basic - things you've done since second grade. Others are unique; perhaps you hadn't thought of doing some of these before, or had difficulty in trying to set them up. Lists of the materials needed for the demonstrations, directions on how to assemble them, instructions on how to show them, and notes on how they work are all here for you. Also shown are several cool magnetic toys you can buy. Of course, there are also links to useful sites, sources and books on magnets. Have fun experimenting! Rick Hoadley

24. McGraw-Hill's AccessScience
    In magnetic levitation (maglev), also known as magnetic suspension, this basic principle is used to suspend (or levitate) vehicles weighing 40 tons or more  
    http://www.accessscience.com/content.aspx?id=397550

25. Magnetic Levitation:
    Research into magnetic levitation and microgravity at the University of Nottingham.  
    http://www.freewebs.com/ppxatc/

26. Magnetic Levitation Vehicles Activity
    This page describes the magnetic levitation vehicle activity used in the Technology Education program at Akimel Aal Middle School in Phoenix, Arizona.  
    http://www.kyrene.org/staff/sreed/AMSITECH/activities/maglev/maglev.htm
    
    Extractions: Magnetic Levitation Vehicles Introduction As we move toward the twenty first century, an analysis of our transportation needs indicates that the systems we have in place today may not be capable of supporting our transportation needs for the future. Because of the growing need for quicker and more efficient methods for moving people and goods, researchers have turned to a new technique, one using electromagnetic rails and trains. This rail system is referred to as magnetic levitation , or maglev . Maglev is a generic term for any transportation system in which vehicles are suspended and guided by magnetic forces. Instead of engines, maglev vehicles use electromagnetism to levitate (raise) and propel the vehicle. Alternating current creates a magnetic field that pushes and pulls the vehicle and keeps it above the support structure, called a guide way There are two basic types of maglev - electromagnetic suspension (EMS) and electrodynamic suspension (EDS) EMS depends on attractive force . Electromagnets on the vehicle are drawn toward a pair of steel rails. Most of the vehicle rides above the rails but the magnets wrap beneath the rail. As the magnets pull the vehicle upward, their current is electromagnetically regulated to maintain a constant gap between the rails and the vehicle. EDS , on the other hand, is based on repulsive force . The vehicle contains superconducting magnets that induce a repulsive force in a conducting guide way as the vehicle moves along it. Superconducting electromagnets

27. Magnetic Levitation: The Basics
    magnetic levitation of. Graphite W. Braunbeck (1939). Organic Materials E. Beaugnon and R. Tournier (1991). F º force acting on the body M º magnetic  
    http://www.phys.ufl.edu/~meisel/asgsb3.htm
    
    Extractions: Magnetic Levitation: The Basics (Not of the Superconducting or Similar Variety) Diamagnetism: M. Faraday (1846) Magnetic Levitation of: Graphite: W. Braunbeck (1939) Organic Materials: E. Beaugnon and R. Tournier (1991) F magnetic moment B c m o ) (Volume) B r c magnetic susceptibility Force due to gravity: (mass) g r (Volume) g Balances the magnetic force when material is diamagnetic ( i.e. c (assuming ideal conditions along the z-direction of solenoid magnet) H O levitates at [B dB/dz] 1400 T /m Graphite levitates at [B dB/dz] 375 T /m

28. Last Modified
    If it were magic, magnetic levitation would be a good trick because the magnetic levitation (maglev) is a welldeveloped and tested modern technology.  
    http://faculty.washington.edu/jbs/rev/rev9.htm
    
    Extractions: LEVITATION ISN’T JUST A MAGIC TRICK Magnetic levitation (maglev) is a well-developed and tested modern technology. It is practical, efficient, safe, quiet, and economically sound. It has already carried a total of over two and two-thirds million paying train passengers in Japan, Canada, and Germany, without an accident (a safety record railroad tracks could never meet.) In October 1993 the Transrapid 07 maglev train ran 279mph at Emsland, Germany. Another type of maglev train, the ML-500 ran at 343 miles per hour in Japan on April 14, 1999. The American Maglev Star train, which is being proposed for installation between the Kennedy Space Center and Cape Canaveral, is planned for speeds up to 350 mph. Another maglev train recently went into operation at Shanghai, China. But all is not rosy in the railroad business. In recent years a number of maglev trains have been planned then cancelled. As we saw in the previous chapter, coupled trains have major disadvantages that make that concept largely obsolete whether the cars are supported by steel wheels on rails or by maglev. For that reason conventional railroads are dying and I predict that maglev trains will also die.

29. Magnetic Levitation & Analog Servo Controller
    Site presents original and exclusive experiences relating to magnetic levitation, servocontrol, etc. for a hobbyist.  
    http://www.flyingmagnet.com/usindex.html

30. Wireless Power Transfer And Magnetic Levitation - Hacked Gadgets - DIY Tech Blog
    magnetic levitation using Hall effect Sensor Feedback, and Matched resonant wireless power transfer Check out the video links right under the first image.  
    http://hackedgadgets.com/2007/11/27/wireless-power-transfer-and-magnetic-levitat

31. Magnetic Levitation Promises Huge Efficiency Gains In Wind Power Generation - Gi
    Sustainable generation of electric power is the key to realizing the vision of a world free from dependency on fossil fuels – the challenge is to  
    http://www.gizmag.com/go/7705/
    
    Extractions: @import "/css/17/giz_screen.css"; from ecoGizmo (126 articles) Image Gallery (1 image) July 31, 2007 Sustainable generation of electric power is the key to realizing the vision of a world free from dependency on fossil fuels – the challenge is to ramp up the production of electricity to a level that can begin to approach the energy we get from burning coal and oil, without the perceived dangers of going nuclear. The combined threats of Peak Oil and global warming Magnetic levitation uses the repelling properties of magnets to lift an object off the ground. In this case, the object is a wind-harvesting fan. The benefit of having it floating in midair is that it cuts down on the friction that causes so much inefficiency in the traditional windmill-style wind energy harvester we see dotting our coastlines. Friction is also the key factor necessitating frequent maintenance of windmill turbines, adding considerably to the cost of running them. Without rotational friction to overcome, a wind turbine generator can begin to harvest power from air speeds as low as 1.5 meters per second.

32. Specialty Challenges
    magnetic levitation. Challenge. Design a control system to levitate a 1 solid steel ball using an electromagnet.  
    http://www.quanser.com/english/html/products/fs_product_challenge.asp?lang_code=

33. BBC - H2g2 - Magnetic Levitation – The Future Of Rail Travel?
    magnetic levitation Transport, or maglev, is a revolutionary form of railway transport. It uses magnetic forces to make the vehicles hover above the track  
    http://www.bbc.co.uk/dna/h2g2/A21605663
    
    Extractions: - Benjamin Franklin What is Maglev? Mag netic Lev itation Transport, or maglev, is a revolutionary form of railway transport. It uses magnetic forces to make the vehicles hover above the track rather than running along them, thus reducing the friction between the two and allowing much higher speeds to be attained than are safely achievable on any other form of ground based public transport. A Brief History of the Technology Though the idea of high speed trains levitated by magnetic forces seems revolutionary, even to us today, the concept is over a century old. In the early 1900s, Bachelet in France and Goddard in the United States discussed the possibility of using magnetically levitated vehicles for high speed transport. However, they were unable to propose a practical way to achieve this goal.

34. Magnetic Levitation
    When you are interested to perform a series of (pilot) studies using the levitation magnet you are invited to contact us and discuss various possibilities.  
    http://www.desc.med.vu.nl/Magnet_us.htm
    
    Extractions: Magnetic levitation Every element (in the periodic system) is magnetic. However, there are three main levels or domains of magnetism. The smallest effect is know as diamagnetism and is a property of elements like antimony, bismuth, copper, carbon but also phosphorus and hydrogen. Paramagnetism has an intermediate value, about two orders of magnitude higher than diamagnetism. Paramagnetism is seen in e.g. aluminum, zinc, liquid oxygen but also in glass and rubber. The largest magnetic effect is known as ferromagnetism. This is, in our daily life, the most common form of magnetism. The only elements with ferromagnetic properties are iron, cobalt, and nickel. Ferromagnetism is about 10 times larger compared to diamagnetism. Ferro and paramagnetic elements may easily be levitated in low gradient magnetic fields. This system is used in various commercial products. To elevate diamagnetic materials, however, much higher field strengths and field gradients are necessary. In such a high power magnet organic materials or even living biological samples may be elevated, thereby counteracting the force of gravity.

35. NIE Online Lesson
    Shanghai, China may be the world s first city to build a commercial magnetic levitation train. German consortium Transrapid is pursuing the contract to  
    http://www.learnersonline.com/weekly/archive2K/week48/index.htm
    
    Extractions: Subject: Physical Science Magnetic Levitation Train Shanghai, China may be the world's first city to build a commercial magnetic levitation train. German consortium Transrapid is pursuing the contract to build the controversial "Maglev" high-speed train. Germany has invested decades of research and billions of dollars into developing Maglev technology, as has Japan, though the technology has yet to be put to commercial use. Maglev uses powerful magnets to hold a train a few millimeters from the track and propel it with little noise or vibration. In an April time trial, a Japanese test Maglev set a speed record of 343 mph. Germany has its own test Maglev, which a delighted Chinese Premier Zhu Rongji rode in July. Shanghai is expected to sign a contract with Transrapid as early as December, 2000 for a 20- to 25-mile line to the 1-year-old Shanghai Pudong International Airport. The venture could cost more than $1 billion. This week's online lesson is about magnets, magnetism, and Maglev technology.

36. What Is Magnetic Levitation?
    A body will be under magnetic levitation when it floats due to that special repelling quality of the magnets, i.e. when the force generated by the  
    http://www.tech-faq.com/magnetic-levitation.shtml
    
    Extractions: Tech-FAQ Enter your search terms Submit search form Web www.tech-faq.com Magnets are mainly characterized for having poles: if you put together poles of the same charge they repel and if you put together charges of different pole, they attract. A body will be under Magnetic Levitation when it floats due to that special repelling quality of the magnets, i.e. when the force generated by the electromagnetic repulsion is strong enough to balance the weight of the object. There are different methods for obtaining Magnetic Levitation. For heavy objects, the main are electromagnetic suspension and electrodynamic suspension. See: How does a Maglev Train work? for more details. It has been proved that the levitation cannot be stable under static magnetism; there are several ways to overcome this problem, the use of diamagnetic materials is one. Diamagnetic substances repel the magnetic field; this effect can be used to create levitation of light objects. In particular superconducting substances are perfect diamagnets, allowing the lift of heavier weights. Another mechanism is the use of eletrodynamic fields. Moving charges produce magnetism and moving magnets produce electricity; that is why both phenomena have been unified under the concept of electromagnetic field. Different arrays of moving conductors and/or magnets can be created to generate the stable vertical push needed for levitation.

37. Hovering, Hand Crafted Wooden Motion Sculptures
    Each hovering Motion Sculpture employs magnetic levitation and spinning parts in perpetual motion to captivate and hold the eye. You can literally watch a  
    http://www.allwaze.com/woodcraft-hover.htm
    
    Extractions: NZ Gift Trade Association Member Member: NZTDA Location: Home WoodCraft Hovering ALLWAZE WOODCRAFT... [Hovering] Animated JewelBox TrinketBox MarbleRoll ... Puzzles These Hovering Perpetual Motion Sculptures are an amazing display of elegance and motion. Hand crafted from hardwood, these wooden sculptures are a fine blend of exquisite art and fascinating science. Each hovering Motion Sculpture employs magnetic levitation and spinning parts in 'perpetual motion' to captivate and hold the eye. You can literally watch a Perpetual Motion Sculpture for hours! The perfect executive toy, they are guaranteed conversation starters. Batteries are used to overcome the air friction losses and simply give the moving arm a 'kick' each time it passes the base. Each Levitating Motion Sculpture takes four AA batteries, and will continue to rotate from several months to a year, on the one set prior to replacement. Batteries are not included, but are available as extras; see our batteries page for information on these.

38. Technical Page - Maglev Monorail Introduction
    In 1922, Hermann Kemper in Germany pioneered attractivemode (EMS) Maglev and received a patent for magnetic levitation of trains in 1934.  
    http://www.monorails.org/tMspages/TPMagIntro.html
    
    Extractions: Introduction to Maglev Monorail There are 2 basic types of non-contact Maglev systems (we will discuss propulsion later): Electro Dynamic Suspension (EDS) , and Electro Magnetic Suspension (EMS) . EDS is commonly know as "Repulsive Levitation," and EMS is commonly known as "Attractive Levitation." A Brief History of Magnetic Levitation In the early 1900s, Emile Bachelet first conceived of a magnetic suspension using repulsive forces generated by alternating currents. Bachelet's ideas for EDS remained dormant until the 1960s when superconducting magnets became available, because his concept used too much power for conventional conductors. In 1922, Hermann Kemper in Germany pioneered attractive-mode (EMS) Maglev and received a patent for magnetic levitation of trains in 1934. In 1939-43, the Germans first worked on a real train at the ATE in Goettingen. The basic design for pratical attractive-mode maglev was presented by Kemper in 1953. The Transrapid (TR01) was built in 1969. In 1969, groups from Stanford, Atomics International and Sandia developed a continuous-sheet guideway (CSG) concept. In this system, the moving magnetic fields of the vehicle magnets induce currents in a continuous sheet of conducting material such as aluminum. Several groups, including MIT (Kolm and Thornton, MIT, 1972,) built 1/25th scale models and tested them at speeds up to 27 m/s (97.2 km/h.) The CSG concept is alive and well in 2001 with the Magplane. EDS systems were also being developed in the US in the early '70s, including work by Rohr, Boeing, and Carnegie-Mellon University. Maglev research in the US came to a screeching halt in 1975 when the Federal government cut off the funds to HGST research.

39. Magnetic Levitation Train Kit
    Create a 2 Foot magnetic levitation Train. Each Kit Includes HiForce magnetic Strips, 10 ceramic latch magnets, 6 sm ceramic disc magnets, 6 ceramic ring  
    http://store.jalts.com/maletrkit.html

40. Worlds First Magnetic Levitation Mobile Phone - Esato News
    Worlds First magnetic levitation Mobile Phone Esato news.  
    http://www.esato.com/news/article.php/id=1570
    
    Extractions: Magnetic levitation is seeing a new application in modern technology. In addition to bullet trains, the emerging technology will be used in the most familiar consumer gadgets of the day the Mobile Phone. "This will be the world's first cell phone based on magnetic levitation technology. The top half of the slider moves via magnetic power,'' Pantech spokesperson Yang Yu-in said. "Thanks to magnetic forces, its users will be able to almost automatically slide open their phones and vice versa. This is an out-of-box product,'' Yang said. The phones will debut in the domestic market in April and Pantech plans to export the versatile models after checking their commercial viability in Korea. source: hankooki

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