61. Magnetic Levitation Question I am looking for Information On magnetic levitation. If there is anyone out There who can give any information at all on this subject. http://www.newton.dep.anl.gov/askasci/phy99/phy99212.htm

Ask A Scientist Physics Archive Magnetic Levitation Back to Physics Ask A Scientist Index NEWTON Homepage Ask A Question ... NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators. Argonne National Laboratory, Division of Educational Programs, Harold Myron, Ph.D., Division Director.

62. Magnetic Levitation - Background magnetic levitation maglev is a transportation technology in which noncontacting vehicles travel at speeds of 300 miles-per-hour. http://inventors.about.com/library/inventors/blrailroad3.htm

zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') You are here: About Inventors Inventors Inventors ... Help Chapter 1: Background WHAT IS MAGLEV? Return Table of Contents Magnetic levitation (maglev) is a relatively new transportation technology in which noncontacting vehicles travel safely at speeds of 250 to 300 miles-per-hour or higher while suspended, guided, and propelled above a guideway by magnetic fields. The guideway is the physical structure along which maglev vehicles are levitated. Various guideway configurations, e.g., T-shaped, U-shaped, Y-shaped, and box-beam, made of steel, concrete, or aluminum, have been proposed. Figure 1 depicts the three primary functions basic to maglev technology: (1) levitation or suspension; (2) propulsion; and (3) guidance. In most current designs, magnetic forces are used to perform all three functions, although a nonmagnetic source of propulsion could be used. No consensus exists on an optimum design to perform each of the primary functions. Suspension Systems The two principal means of levitation are illustrated in Figures 2 and 3. Electromagnetic suspension (EMS) is an attractive force levitation system whereby electromagnets on the vehicle interact with and are attracted to ferromagnetic rails on the guideway. EMS was made practical by advances in electronic control systems that maintain the air gap between vehicle and guideway, thus preventing contact.

63. TEA-21 - Fact Sheet: Magnetic Levitation Transportation Technology Deployment Pr The magnetic levitation transportation technology deployment program encourages the development and construction of an operating transportation system http://www.fhwa.dot.gov/tea21/factsheets/r-maglev.htm

TEA-21 - Transportation Equity Act for the 21st Century Moving Americans into the 21st Century Fact Sheet TEA-21 Home DOT Home Fact Sheet Index MAGNETIC LEVITATION TRANSPORTATION TECHNOLOGY DEPLOYMENT PROGRAM Year Contract Authority Authorization (subject to appropriation) Program Purpose The magnetic levitation transportation technology deployment program encourages the development and construction of an operating transportation system employing magnetic levitation capable of safe use by the public at a speed in excess of 240 miles per hour. [1218] Funding Features Contract authority out of the Highway Account of the Highway Trust Fund is provided for fiscal years 1999-2001 totaling $60 million. $55 million is available to fund preconstruction planning activities and design/construction of the selected project. $5 million is available only for research and development grants related to low-speed superconductivity maglev technology for public transportation purposes in urban areas. An authorization for an appropriation out of the Highway Account of the HTF is provided for an additional $950 million over fiscal years 2000-2003. These funds would have to be appropriated by the Congress before they would be available for expenditure. An eligible maglev project would also be eligible for other forms of financial assistance provided in Title 23, United States Code, and TEA-21, including loans, loan guarantees, and lines of credit. [1218]

64. FEDERAL RAILROAD ADMINISTRATION : PASSENGER RAIL magnetic levitation (Maglev) is an advanced train technology in which magnetic forces lift, propel, and guide a vehicle over a guideway. http://www.fra.dot.gov/us/content/200

DOT Site Search: FRA-only Magnetic Levitation (MAGLEV) Printer Friendly MAGLEV Deployment Program Magnetic levitation (Maglev) is an advanced train technology in which magnetic forces lift, propel, and guide a vehicle over a guideway. Utilizing state-of-the-art electric power and control systems, this configuration eliminates contact between vehicle and guideway and permits cruising speeds of up to 300 mph. Because of its high speed, Maglev offers competitive trip-time savings compared to aviation in travel markets up to 600 miles long - an attractive travel option for the 21st century. The Maglev deployment program was created to demonstrate the potential of a commercial Maglev project in the United States. About the MAGLEV Deployment Program Maglev Projects Current Project Status Funding for MAGLEV ... High-Speed Ground Transportation Last Updated: Jun. 08, 2004 About Us Website Polices Plug-ins Site Index ... Home Federal Railroad Administration, U.S. Department of Transportation, 1200 New Jersey Avenue, SE, Washington, DC 20590

65. U Of M - CIAMR The physical principle behind magnetic levitation is that all diamagnetic objects magnetically polarize when immersed in a strong magnetic field. http://www.ciamr.umn.edu/Levitation.html

One Stop Directories Search U of M The mission of the CIA-MR is to apply magnetic resonance technology to fundamental problems in engineering and the physical sciences. CIAMR Home CIAMR Personnel CIAMR Facilities MR-PET Scanner Development ... University of Minnesota Magnetic Levitation Magnetic Levitation at the CIA-MR All materials experience a force when placed in a region of magnetic field and field gradient. The magnitude of this force depends upon the magnetic susceptibility of the material and this varies over a wide range depending on the type of material. Ferromagnetic materials have large susceptibilities and can generate large forces even in modest fields and gradients. Force interactions between ferromagnetic materials and magnetic fields are evident in everyday life and even more so when working with high magnetic fields. The physical principle behind magnetic levitation is that all diamagnetic objects magnetically polarize when immersed in a strong magnetic field. In the presence of a strong magnetic field gradient, parallel to the polarizing field, the diamagnetic sample experiences a magnetic force. Orienting this force opposite to the gravitational force can lead to no net force on the object; thus, levitation occurs (Fig 1). The force per unit mass is: A 17 Tesla/ 50 mm warm bore superconductive magnet was delivered to the CIA-MR in September 2004.

66. MAGLEV New Mode Of Transport The inventors of the world’s first superconducting maglev system tell how magnetic levitation can revolutionize world transportation, and even carry http://www.21stcenturysciencetech.com/articles/Summer03/maglev2.html

MAGLEV The New Mode of Transport for the 21st Century by James Powell and Gordon Danby From the Summer issue of (partial text) Why is Maglev important? There are four basic reasons. First, Maglev is a much better way to move people and freight than by existing modes. It is cheaper, faster, not congested, and has a much longer service life. A Maglev guideway can transport tens of thousands of passengers per day along with thousands of piggyback trucks and automobiles. Maglev operating costs will be only 3 cents per passenger mile and 7 cents per ton mile, compared to 15 cents per passenger mile for airplanes, and 30 cents per ton mile for intercity trucks. Maglev guideways will last for 50 years or more with minimal maintenance, because there is no mechanical contact and wear, and because the vehicle loads are uniformly distributed, rather than concentrated at wheels. Similarly, Maglev vehicles will have much longer lifetimes than autos, trucks, and airplanes. The Maglev 2000 can operate in the open air, or in underground tunnnels. Using a low-pressure tunnel will make it possible to get from Los Angeles to New York in 1 hour. Second

67. Magtube: Magnetic Levitation The vehicle magnet arrays extend for most of the length of the vehicle. With practical magnet dimensions, they can provide a levitation gap of three to http://www.magtube.com/index.php/technology/magnetic_levitation

Magtube: Freight transit for the 21st century Home The Problem The Solution Technology ... Propulsion Halbach Arrays The maglev suspension technology developed for the Magtube design makes use of high-strength neodymium-iron-boron permanent magnets assembled in a configuration known as a Halbach array. A typical array of this type and its magnetic field are shown in the figure to the left. The Repulsor The active face of the vehicle array points downward, while the active face of the stationary track array points upward. The vehicle array is much larger in cross section than the track array to provide sufficient lift force while minimizing track costs. The Repulsor design produces in excess of three times the force of an equivalent mass of magnet material configured as simple dipoles of opposing polarity, and also confines the field to a much more localized area. The vertical and lateral forces produced by the Repulsor are illustrated below. With the vehicle and track arrays vertically aligned as shown in this figure, vertical force is maximized and lateral force is zero. As the lateral offset increases, the magnitude of the lateral force grows and tends to increase the offset even more, i.e. the Repulsor is laterally unstable. Stabilization To compensate for lateral instability, voice coil lateral stabilizers are mounted beneath the vehicle magnets to interact with the track magnets, resulting in the vehicle suspension shown in this illustration.

68. Quanser: Magnetic Levitation - Adept Scientific magnetic levitation XY Shake Table lll - High Wire Walker Design a control system to levitate a 1 solid steel ball using an electromagnet. http://www.adeptscience.co.uk/products/controls/quanser/p_quan_S_magnetic_levita

Adept Scientific - English The world's best software for research, science and engineering. Adept Store Join My Adept Home Products ... Jobs Search UK Site Browse Products Login Edit Account Shopping Basket The Next Steps Ask us a question Download a Demo Download a Brochure Learn More Quanser Home The Quanser Difference Comparison Chart Control Experiments Linear Rotary Specialty 2 DOF Helicopter ... Technical Support request Quanser Magnetic Levitation Challenge: Design a control system to levitate a 1" solid steel ball using an electromagnet. Description: The "maglev" experiment consists of an electromagnet encased in a rectangular enclosure. One electromagnet pole faces a black post upon which a 2.54 cm steel ball rests. The ball elevation from the post is measured using a sensor embedded in the post. The post is designed such that with the ball at rest on its surface it is 14mm from the face of the electromagnet. The purpose of the experiment is to design a controller that levitates the ball from the post and to track the ball position to a desired trajectory. The posts also provide repeatable initial conditions for control system performance evaluation. Difficulty: Undergraduate / Graduate Ready to buy?

69. HFML, Levitation Molecular Magnetism and levitation. Something to amuse. http://www.hfml.ru.nl/levitate.html

The Real Levitation Leaving science fiction aside, science does know scores of different ways to levitate things. For instance, a helicopter can be considered as a very impressive levitation device that uses a stream of air to keep floating. Scientists have also found many ways to levitate things without any noise or the need for petrol or air, by using electromagnetic fields. Levitating trains and levitating displays are but two examples of electromagnetic levitation. However, in all such schemes, a source of energy (an engine or a battery at least) is always required to keep an object afloat. Remove the battery and the levitation inevitably stops Today's science knows only one way to achieve REAL levitation, i.e. such that no energy input is required and the levitation can last forever. The real levitation makes use of diamagnetism , an intrinsic property of many materials referring to their ability to expel a portion, even if a minute one, of an external magnetic field. Electrons in such materials rearrange their orbits slightly so that they expel the external field. As a result, diamagnetic materials repel and are repelled by strong magnetic fields. Three basic schemes using various aspects of diamagnetism allow the true levitation: SUPERCONDUCTING LEVITATION Superconductors are ideal diamagnetics and completely expel magnetic field at low temperatures. The picture shows a sumo wrestler standing on a levitating magnet platform that floats above a high-temperature superconductor. The superconductor is cooled by liquid air and hidden below the platform. To learn more about superconducting levitation, click on the title above (this is not our work) or search the web.

70. Maglev Systems Development Department Home Page The SCM suffers from external magnetic disturbances caused by ground coils ground coils which consist of sidewall levitation coils; a highpower supply http://www.rtri.or.jp/rd/maglev/html/english/maglev_frame_E.html

Please use the browser supporting HTML 3.2 or later. If your browser doesn't support HTML 3.2, you will get insuffcient informations. To the menu page

71. Floating Ideas Magnetic Levitating Globe | Edmund Scientific Get the Floating Ideas desktop levitating globe from Edmund Scientific perfect for any home or office. Other fun accessories available. Shop online! http://scientificsonline.com/product.asp_Q_pn_E_3036982

100% Guaranteed Secured Shopping You have items in your cart! Total $0.00 View Cart Print Cart My Account Home ... Catalog Quick Shop Shop by Age Choose an Age Group Kids 4-6 Kids 7-10 Kids 11-14 Gifts for Him Gifts for Her Gifts for Boys Gifts for Girls Shop by Price Choose a Price Range Gifts Under $10 Gifts $10-$25 Gifts $25-$75 Gifts $75-$150 Gifts Over $150 var cmJv="1.1"; var cmJv="1.2"; var cmJv="1.3"; var cmJv="1.4"; var cmJv="1.5"; Search Highlights Clearance Gift Ideas Best Sellers New Products Gift Ideas Shop by Recipient For Him For Her For Boys For Girls Executive Gifts Browse Products Astronomy Binoculars Biomedical Chemistry ... Floating Ideas - Levitating Globe Floating Ideas - Levitating Globe View larger photo Browse: More Science Fun... 5 customer reviews The Unique Eye-catching Animation of Magnetic Levitation This magnetic floating display takes levitation to new heights. From the impressive floating gap to the aesthetically pleasing frame design, it will grace any home or office. The uniqueness of the Floating Ideas makes it the perfect gift. The product is easy to use – the patent pending technology and the spacer training aid that comes with each kit make sure that even a complete novice will be floating straight out of the box. The objects rotate serenely in the magnetic field in either direction. At the flick of a switch and a flick and a gentle push of the object, watch as the object slowly rotates forever. The light in the base lights up to tell you when the sensing technology detects the object slowing down and applies a powerful magnetic force to keep the object spinning.

72. Rod Driver For Congress IT S AN EXTRAORDINARY SIGHT a magnetic top spinning, bobbing and weaving in space for two minutes or longer. It remains levitated two or three inches http://www.roddriver.com/index_science.html

U.S. Capitol Home Page Rod's Biography Elections 2006 Langevin's votes ... War on Drugs Science Magnetic levitation Rod's papers E-mail Rod Donate to Rod's Campaign Rod Driver on Science Magnetic Levitation An Amazing Invention, and a Patent Failure Part one of two parts: The invention. (The Providence Journal, September 22, 1999). IT'S AN EXTRAORDINARY SIGHT - a magnetic top spinning, bobbing and weaving in space for two minutes or longer. It remains levitated two or three inches above a larger base magnet. The top is not touching any other object, and no strings, electricity or other devices are used. The Patent that Failed (The Providence Journal, September 23, 1999) Second of two parts . In 1993 Seattle entrepreneur Bill Hones ran across a 10-year-old U.S. patent des cribing a device for levitating a spinning permanent magnet. Hones contacted Roy Harrigan, the inven tor, to ask about it. Harrigan assured him that the magnet really does levitate. To prove it he sent Hones a videotape showing an actual working model. Reference to Some of Rod Driver's Papers Contact Information Rod Driver P.O. Box 156, W. Kingston, RI 02892

73. Stellanova Levitating Globe - Magnetic Floating Desktop Globe Coincidentally, you too can harness this power by simply plugging your magnetic Levitating Globe into a standard electrical outlet. http://www.vat19.com/dvds/stellanova-levitating-globe.cfm

About Us Testimonials Contact Us Products ... Blog Search Watch 121 videos (and counting) of our curiously awesome products. Shop Categories Candles For the Home Outdoors USB Gadgets ... Technical DVDs Search Vat19 Shop by price: Show All You are here: Products Office Gear Stellanova Magnetic Levitating Globe Floating magnetic desktop globe. Think this item is cool? Email a Friend Price: Availability: In Stock Get it delivered by Mon, Jan 28. Ships: Next Business Day Shipping Info: Get Shipping Quote Quantity: Watch Our Video Clip See the Levitating Globe in action! Overview: Harnessing the power of Castle Grayskull, the manufacturers of this desk globe have created a levitating world. Coincidentally, you too can harness this power by simply plugging your Magnetic Levitating Globe into a standard electrical outlet. Powerful magnets at the top and bottom of the globe allow it to suspend gracefully in mid-air. For people who like: air and space office toys science toys Approx. 12" tall (including frame)

74. Chapter 1: Magnetism At one point while turning the rod, the magnet will start to levitate between the disks. The levitating disk is very sentitive to slight changes in the http://scitoys.com/scitoys/scitoys/magnets/suspension.html

Experimenting with magnetorheological fluids. Suspending a magnet in mid-air. Levitating pyrolytic graphite. A Gauss Rifle: A Magnetic Linear Accelerator. ... Building a Curie-effect heat engine. Going further: Superconductors. A magnet in mid-air. Floating in mid-air between two metal plates, a tiny magnet bobs and spins in the wind from the viewer's breath. No batteries are used, no electromagnets, no supercooled superconducting materials, just some easy to obtain materials from local stores. Shopping list 12 ceramic ring magnets (Radio Shack) tiny neodymium-iron-boron magnet (Radio Shack) [The tiny rare-earth magnets shown in these photos are much stronger than the Radio Shack magnets, and can be found in our catalog . If using the Radio Shack magnets, you may need a stronger top magnet, and a taller support column.] 8 inches of 1/4 inch threaded brass rod 4 brass hex nuts to fit the 1/4 inch rod 2 brass or nylon washers to fit the brass rod wooden base (5 inch square, 3/4 inch high) 6 to 8 inch wooden support, 2 inches square

75. Magnet Levitating Above A Ring Or Disk With Zero Resistance In the zero resistance case, there is enough field pressure to keep the magnet from falling through the ring. The magnet is levitated above the ring because http://web.mit.edu/jbelcher/www/lev.html

Magnet Levitating Above A Ring or Disk With Zero Resistance Associated Java Applet 0.6 MEG QuickTime File A magnet levitates above a superconducting disk in liquid nitrogen. 0.6 MEG AVI File or 1.1 MEG QuickTime File. A magnet levitates above a ring with zero resistance. A ring with zero resistance is different from the superconducting disk above, because there are quantum mechanical effects there which do not appear in this clasical case. But there are analogies that can help us understand some of what is happening. In the zero resistance case, there is enough field pressure to keep the magnet from falling through the ring. The magnet is levitated above the ring because it is floating on the magnetic fields, held up by the pressure perpendicular to the magnetic field. 1.8 Meg QuickTime File. A magnet again levitates above a ring with zero resistance. Here we show only one field line repeated many times in azimuth. The motion here is periodic. Set your movie player to loop. 1.8 Meg QuickTime File. A magnet now levitates above a disk with zero resistance. Here we show only one field line repeated many times in azimuth. The motion here is periodic. Set your movie player to loop.

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