41. Magnetic Levitation Stirrers magnetic levitation Stirrers (US patent 6,357,907) were designed to stir the tall narrow columns of deep well 96 and the new Whatman Polyfiltronics deep well http://www.vp-scientific.com/magnetic_levitation.htm

l l l l l Applications Rapid and efficient stirring of 96 and 384 deep well microplates Thorough mixing of 2 or more viscous solutions Keeps particulates in suspension Aeration of microbial cultures to increase DNA or protein yield Miniaturization of fermentations Stirring chemical reactions to speed completion Advantages of the System Thorough stirring of large numbers of samples Will stir even viscous solutions (100,000 centistokes) No cross contamination – wells do not have to be sealed Simple to operate The gold standard for optimal bacterial growth is aeration using a shake flask on an orbital shaker. Unfortunately deep well blocks (96 or 384) are not aerated like the flasks are on the orbital shaker and the growth fades when the oxygen in the media is depleted. One of our customers compared E. coli growth using Levitation Stirring in 96 deep well blocks and a shake flask on an orbital shaker the results below demonstrated comparable growth curves between the two culture conditions. Thus it possible to obtain maximal DNA or protein yields in miniaturized culture conditions. INCUBATION TIME LEVITATION STIRRER OD SHAKE FLASK OD hour 1 hour 2 hours 3 hours 4 hours 5 hours 6 hours LEVITATION STIRRING VISCOUS SOLUTIONS For comparison 1 centistoke = 1.0760 x 10E-5 sq. ft./sec.

42. Magnetic Levitation magnetic levitation. In one design, the train can be levitated by the repulsive force of like poles or the attractive force of opposite poles of magnets. http://www.fact-index.com/m/ma/magnetic_levitation.html

Main Page See live article Alphabetical index Magnetic levitation A magnetic levitation train or maglev is a train -like vehicle that is suspended in the air above the track, and propelled forward using the repulsive and attractive forces of magnetism . Because of the lack of physical contact between the track and the vehicle, the only friction is that between the carriages and the air. Consequently maglev trains can travel at very high speeds with reasonable energy consumption and noise levels (systems have been proposed that operate at up to 650 km/h, which is far faster than is practical with conventional rail transport ). Whilst the very high maximum speeds make maglev trains potential competitors to airliners on many routes, the enormous cost of constructing the tracks has limited maglev vehicles largely to demonstration projects. Table of contents 1 Technology 2 Maglev systems 3 See also 4 External links Technology There are two primary types of maglev technology: One that relies on superconducting magnets and a newer, potentially more economical system that uses permanent magnets. Japan and Germany are active in maglev research producing several different approaches and designs. In one design, the train can be levitated by the repulsive force of like poles or the attractive force of opposite poles of magnets. The train can be propelled by a

43. Magnetic Levitation Ask A Scientist©. Physics Archive. magnetic levitation. Question I am looking for Information On magnetic levitation. If there is 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.

44. Magnetic Levitation Ask A Scientist©. Physics Archive. magnetic levitation. name Sam J. status student age 20s Question I am tring to find out a good http://www.newton.dep.anl.gov/askasci/phy00/phy00265.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.

45. Magnetic Levitation (Mag-Lev) This page contains information about links, lessons and photographs having to do with magnetic levitation. This is a great article on magnetic levitation. http://www.newton.mec.edu/Brown/TE/Maglev/mag-lev_links.html

Current Mag-Lev Projects This link will take you to our site with Mag-Lev projects that are currently either being constructed or are under consideration to be construted. USA Today Mag-Lev Article This link takes you to an up to date article on the state of Magnetic Levitation Travel around the world. A great update on China's new Mag-Lev train based on "Transrapid" technology. Argonne Community of Teachers The Argonne Community of Teachers (ACT) provides an interactive maglev curriculum for teachers and students to use in their classrooms. This link has downloadable PDF format files and is the BEST site on the web!! How Stuff Works One of the BEST sites on the web. It contains an explanation of how hundreds, soon to be thousands of things work. This is a great article on Magnetic Levitation. Pittsburg Post Gazette: Is MagLev in our Future? David O'Loughlin said the high-tech mag-lev transit system for Pittsburgh could be finished in about three years. O'Loughlin was wrong. And what happens - or doesn't happen - over the next six months or so will decide whether the maglev ever advances to the next stage or whether it goes nowhere. ABC News: Seven MagLev Finalists The seven "maglev" finalists in California, Florida, Georgia, Louisiana, Maryland, Nevada and Pennsylvania were announced Monday. The seven selected projects will get $12 million combined in grants for further studies on their feasibility, and one will be chosen next year for development and construction.

46. NIE Online Lesson Science. magnetic levitation Train. Shanghai, China may be the world s first city to build a commercial magnetic levitation train. http://www.learnersonline.com/weekly/archive2K/week48/

Weekly Online Lesson Online Lesson Archive Grade Level: 7-12 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.

47. Ed Phillips' Magnetic Levitation Ed Phillips magnetic levitation. A discussion Hey, SCIENCE NEWS has a brief article on a new form of magnetic levitation. See the http://www.jclahr.com/science/physics/diamag/phillips.html

Ed Phillips' Magnetic Levitation A discussion of magnetic levitation began on July 31, 1999, on the SciClub mailing list with this message from list owner William Beaty ( billb@eskimo.com Hey, SCIENCE NEWS has a brief article on a new form of magnetic levitation. See the 7/24/1999 issue, where a neodymium magnet is levitated between finger and thumb! It's done by lifting a small, powerful permanent magnet using a much larger magnet far above. In the article the authors used a huge electromagnet 8 ft. above the little neo. magnet. They also mention that a "handheld" version exists, so a huge magnet is probably not a requirement. But this doesn't produce stable levitation. So, they place a piece of weakly diamagnetic material above the small magnet, and this repels it downwards. Gravity pulls down, the strong attraction of the huge magnet pulls up, and the weak repulsion from the diamagnet pushes down. With a low-gradient field from a large magnet, the strange repulsion profile of the diamagnet forms an energy well, and the magnet hangs in space. Even the weak repulsion of human fingers is enough to stabilize the hovering magnet! I tried this by lifting a 1/2" neo. disk magnet using a large stack of similar magnets, but unfortunately the temperature of the little disk-magnet messes everything up. If the magnet is warmed by my hands, it attracts less strongly, and if it cools a bit, it flies upwards immediately.

48. 2/5/2003 Magnetic Levitation Summary part however. The magnets laid across the top, are to create a stable levitation; and/or control the magnetic field. They were literally http://www.jclahr.com/science/physics/diamag/seismo/meredith/2-5-03.html

From ChrisAtUpw at aol dot com Date Wed, 5 Feb 2003 213312 EST Subject Re Preliminary new magnets diam check Notes Hi All, I have done a summary of some of Meredith's recent experiments and I have added some comments which may help in designs. LARGE MAGNETS In a message dated 09/01/03, meredithlamb@earthlink.net writes: The big magnets are from the E-Bay Gaussboys seller, as, item "Block 18"). They are literally metric in size, which is 50mm x 18mm x 6mm; or, 1.97" x .710" x .235". They are rated at 38. They cost $7 each via E-Bay auction site, but $7.50 each per the Gaussboys regular web site. It "seems" to be a "regular" stock item at least for the time being. Not really a cheap item...but it seems to be ~ 10-15% greater in the amount of gauss field it generates; than say a R36 magnet which in reality probably slightly raises the amount of added aluminum dampening, optical flag, or weight it could carry a little. The steel base is a Steel Works item, and seems to be flatter overall than other welding steel material I've seen or tried before. The size is 4" width x 12" long x 1/4" thick. The item was obtained at a Denver area, Lowes, building supply store, but I think its around in other Ace, misc., stores that stock the Steel Works items. Price is ~ $7.50. However, I did visually compare the flatness with afew others, to settle on the selected purchase. Obviously the steel plate, has potential where with drilling, tapping of holes could lead to a complete adjustable setscrew

49. Magnetic Levitation With Spin Waves magnetic levitation With Spin Waves, The following pdf file is of the end of our latest book on Spin Wave Technology. We have 4 chapters http://www.vasantcorporation.com/swt_magnetic_levitation.php

Home Publications Spin Wave Technology CD Spin Wave Technology Book Articles Overview of Spin Wave Technology About Spin Waves About Spin Wave Lasers What Can Spin Wave Technology Do? ... Magnetic Levitation With Spin Waves News Aerospace Defense Research, Free Energy and Antigravity Possible Potential of Spin Wave Technology for the Future of Powered Flight Site Updates Links Lasers Electromagnetics Entropy Academic Research into Inertia and Gravity ... General Reference Material About Us About the Vasant Corporation Search Translations English Deutsch France Portuguese Español Italiano Contact Us Write us anytime at: contact@vasantcorporation.com Or send mail to: P.O. Box 121741 Fort Worth, TX, 76121-0741 USA Site Mirrors USA Great Britain Australia Magnetic Levitation With Spin Waves The following pdf file is of the end of our latest book on Spin Wave Technology. We have 4 chapters at the end of our new book that are about magnetic levitation systems that utilize spin waves technology. These are actually preliminary chapters of a still to be completed future publication more about this type of levitation. But the technology we propose is very advanced and not easy to implement until after developing magnetic materials with properties engineered specifically for spin wave applications. The PDF file contains all pages from chapter 41 to the end of the book.

50. Guardian Unlimited | Life | Probably The World's Fastest Train Maglev shorthand for magnetic levitation - is basically a train that floats on an electromagnetic cushion, which is propelled along a guideway at incredible http://www.guardian.co.uk/life/feature/story/0,13026,1122916,00.html

@import url(/external/styles/global/0,14250,,00.css); Sign in Register Go to: Guardian Unlimited home UK news World news Archive search Arts Books Business EducationGuardian.co.uk Film Football Jobs Life MediaGuardian.co.uk Money The Observer Online Politics Shopping SocietyGuardian.co.uk Sport Talk Travel Audio Email services Special reports The Guardian The weblog The informer The northerner The wrap Advertising guide Crossword Dating Headline service Syndication services Events / offers Help / contacts Information Living our values Newsroom Reader Offers Style guide Travel offers TV listings Weather Web guides Working at GNL Guardian Weekly Money Observer Home This week Dispatch Opinion ... Talk Search Probably the world's fastest train China's superfast express launches next week. Sean Dodson reports on a revolution in public transport Thursday January 15, 2004 The Guardian On the southern bank of the Yangtze river, about 30km north of Shanghai, lies Pudong international airport. Since it opened its first terminal in 1999 it has served China's irrepressible 21st-century megalopolis with nothing more futuristic than a fleet of taxis and a schedule of buses. If you are lucky, and the roads are clear, you can be in the city centre in 40 minutes. But as of next week, to coincide with the Chinese New Year, passengers arriving at Pudong will be able to reach the centre of town in a fraction of the time.

51. Magnetic Levitation .......magnetic levitation. Every element (in the periodic system) is magnetic. However, there magnetic field. Levitation Magnet Detailed http://www.desc.med.vu.nl/Magnet_us.htm

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. Although the various systems have their specific limitations, for some small samples this microweight 'simulation' may be used to study living samples in preparation of a real microweight experiment.

52. Magnetic Levitation Transportation Issues Hearing on. magnetic levitation Transportation Issues. BACKGROUND. The Subcommittee will conduct a hearing to examine magnetic levitation transportation issues. http://www.house.gov/transportation/rail/06-21-01/06-21-01memo.html

The Subcommittee on Railroads Hearing on Magnetic Levitation Transportation Issues TABLE OF CONTENTS Click on Section BACKGROUND WITNESSES BACKGROUND The Subcommittee will conduct a hearing to examine magnetic levitation transportation issues. Magnetic levitation (maglev) is an advanced 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. Maglev systems, although not yet in revenue service, have been demonstrated to operate at speeds around 300 miles per hour (mph). High-speed passenger trains such as the European TGV and ICE systems, using flanged wheels and steel rails, have also reached speeds approaching the 300 mph level on dedicated rights-of-way. Because of its high acceleration and cruising speed, maglev offers competitive trip-time savings to auto and aviation modes in the 40 to 600-mile travel markets. By comparison, current U.S. passenger trains such as the Amtrak Metroliners operate at up to 125 mph on parts of the Northeast Corridor. The new Acela high-speed trains used by Amtrak are capable of 150 mph, but in most areas except the newly electrified New Haven-Boston segment of the Northeast Corridor, they are limited to about 130 mph by the infrastructure. The Maglev Deployment Program in TEA 21 In 1998 Congress passed the "Transportation Equity Act for the 21st Century" (TEA 21), which created a National Magnetic Levitation Transportation Technology Deployment Program. The program is to demonstrate high-speed maglev technology in commercial service through a project of about 40 miles in length.

53. Physics News Update Number 297 - MAGNETIC LEVITATION OF LIQUID HELIUM-4 magnetic levitation OF LIQUID HELIUM4 has been achieved by physicists at Brown University. Drops as large as 2 cm across, in both http://www.aip.org/enews/physnews/1996/split/pnu297-4.htm

advanced search Number 297 (Story #4), November 27, 1996 by Phillip F. Schewe and Ben Stein MAGNETIC LEVITATION OF LIQUID HELIUM-4 has been achieved by physicists at Brown University. Drops as large as 2 cm across, in both the normal and superfluid state, were levitated. The scientists were surprised by the fact that two such drops often came into contact but failed to coalesce, apparently because of the vapor pressure between them. (M.A. Weilert et al., Physical Review Letters, 2 December 1996.)

54. Magnetic Levitation Feasibility Study - KCI Technologies, Inc. magnetic levitation Feasibility Study. KCI Tech Projects magnetic levitation Feasibility Study. Client The Maryland Department http://www.kci.com/tech/maglev.html

Site Menu Home About Us Services Projects ... Search Magnetic Levitation Feasibility Study KCI Tech Projects Client: The Maryland Department of Transportation Location: Baltimore, MD-Washington, D.C. Corridor Services: Environmental Impact Analysis; Rail Engineering, Ridership, and Revenue Projections; Operations Planning; Cost Estimating; Geographic Information System Analyses; Digitized Databases KCI Technologies was selected from a field of five competing engineering firms by the Maryland Department of Transportation to perform a feasibility study for a high-speed, magnetic levitation (MagLev) train. The study -spearheaded by KCI's Chairman of the Board and Chief Executive Officer, Jack Kinstlinger, PE-reviewed alignment options for a prototype system that would transport passengers between Baltimore, Maryland, and Washington, D.C., in vehicles suspended inches above guideways at speeds approaching 300 miles per hour. KCI Tech Projects webmaster@kci.com

55. Magnetic Levitation Feasibility Study - KCI Technologies, Inc. magnetic levitation Feasibility Study. KCI Tech Projects magnetic levitation Feasibility Study. Client The Maryland Transportation http://www.kci.com/tech/maglev2.html

Site Menu Home About Us Services Projects ... Search Magnetic Levitation Feasibility Study KCI Tech Projects Client: The Maryland Transportation Administration Location: Baltimore, MD-Washington, D.C. Corridor Baltimore-Washington Corridor Selected for Maglev Project The Maryland Transit Administration (MTA) of the Maryland Department of Transportation, in cooperation with the City of Baltimore, Baltimore County, and the District of Columbia, is examining the feasibility of connecting Baltimore, BWI Airport, and Washington, D.C., using Magnetic Levitation (Maglev) technology. KCI Technologies, in joint venture with Parsons Brinckerhoff, is leading the team of engineers, lawyers, economists, financiers, and public relations experts who are conducting the study. Planning activities for this project are funded under the Federal Railroad Administration's (FRA) Maglev Deployment Program which is in section 1218 of the Transportation Equity Act for the 21st Century (TEA-21). MTA Selected for Maglev Project - In May 1999, FRA selected the MTA to conduct an in-depth study in the heavily traveled Baltimore-Washington corridor. The MTA is one of seven agencies nationwide conducting such a study.

56. Odyssey Magnetic Levitation Challenge 8 Maglev Test Track. Teacher Manual. Student Worksheets. Odyssey magnetic levitation Challenge. magnetic levitation Challenge (Grades 610). http://www.kelvin.com/teod_maglev.html

Each System Includes: Magnetic Levitation Challenge Software Cable Assembly with 6 sensors to fit a 8' track 8' Maglev Test Track Teacher Manual Student Worksheets Odyssey Magnetic Levitation Challenge This activity challenges students to design and construct a magnetic levitation vehicle that will travel successfully along a magnetic levitation track. This challenge enables students to design several different types of vehicles using a variety of materials. The goal is to build a vehicle that will travel as fast as possible along a test tract. The software will monitor and display the acceleration of the vehicle between each sensor. This will produce an acceleration curve for the entire test run. Final Speed will be displayed in feet per second and miles per hour. This challenge offers students an opportunity to understand the mystery of magnetic levitation. Magnetic Levitation Challenge (Grades 6-10) Magnetic Levitation Challenge Complete Package (includes PC, 17" LCD Monitor and Pre-loaded Odyssey Software)

57. Magnetic Levitation Challenge: KELVIN.com magnetic levitation Challenge. This challenge offers students an opportunity to understand the mystery of magnetic levitation. Each Kit Includes the Following http://www.kelvin.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=K&Product_Cod

58. Magnetic Levitation To cause diamagnetic levitation, both the diamagnetic material and magnetic material must produce a combined repulsive force to overcome the force of gravity. http://www.rare-earth-magnets.com/magnet_university/magnetic_levitation.htm

Up Diamagnetism A diamagnetic substance is one whose atoms have no permanent magnetic dipole moment. When an external magnetic field is applied to a diamagnetic substance such as bismuth or silver a weak magnetic dipole moment is induced in the direction opposite the applied field. All materials are actually diamagnetic, in that a weak repulsive force is generated by in a magnetic field by the current of the orbiting electron. Some materials, however, have stronger paramagnetic qualities that overcome their natural diamagnetic qualities. These paramagnetic materials, such as iron and nickel, have unpaired electrons. Some Diamagnetic Elements Bismuth Mercury Silver Carbon Lead Copper Some Ferromagnetic Elements Iron Nickel Cobalt G adolinium Dysprosium Some Paramagnetic Elements Uranium Platinum Aluminum Sodium Oxygen Diamagnetic Levitation Diamagnetic Levitation occurs by bringing a diamagnetic material in close proximity to material that produces a magnetic field. The diamagnetic material will repel the material producing the magnetic field. Generally, however, this repulsive force is not strong enough to overcome the force of gravity on the Earth's surface. To cause diamagnetic levitation, both the diamagnetic material and magnetic material must produce a combined repulsive force to overcome the force of gravity. There are a number of ways to achieve this: Placing Diamagnetic Material in Strong Electromagnetic Fields Modern Electromagnets are capable of producing extremely strong magnetic fields. These electromagnets have been used to levitate many diamagnetic materials including weekly diamagnetic materials such as organic matter. A popular educational demonstration involves the placement of small frogs into a strong static electromagnetic field. The frog, being composed of primarily water, acts as a week diamagnet and is levitated.

59. Magnetic Levitation - Wikipedia, The Free Encyclopedia magnetic levitation. magnetic levitation is the process by which an object is suspended above another object with no other support but magnetic fields. http://en.wikipedia.org/wiki/Maglev

Main Page Recent changes Edit this page Page history ... Printable version Not logged in Log in Help Other languages: Dansk Deutsch Nederlands Magnetic levitation (Redirected from Maglev Magnetic levitation is the process by which an object is suspended above another object with no other support but magnetic fields. The electromagnetic force is used to counteract the effects of the gravitational force Earnshaw's theorem proved conclusively that it is not possible to levitate using static, macroscopic, "classical" electromagnetic fields. The forces acting on an object in any combination of gravitational, electrostatic, and magnetostatic fields will make the object's position unstable. However, several possibilities exist to make levitation viable, by violating the assumptions of the theorem. Table of contents showTocToggle("show","hide") 1 Methods 1.1 Diamagnetism 1.2 Superconductivity 1.3 Feedback control systems ... 4 External links Methods Diamagnetism A substance which is diamagnetic repels a magnetic field. Earnshaw's theorem does not apply to diamagnets since they behave in the opposite manner of a typical magnet (relative permeability r paramagnetic or ferromagnetic properties. A material which is predominantly diamagnetic will be repelled by a magnet, although typical objects only feel a very small force. This can be used to levitate light pieces of

60. Magnetic Levitation. The Columbia Encyclopedia, Sixth Edition. 2001 2001. magnetic levitation. or maglev (m g´l v) (KEY) , support and propulsion of objects or vehicles by the use of magnets. The http://www.bartleby.com/65/ma/magnet-l.html

Select Search All Bartleby.com All Reference Columbia Encyclopedia World History Encyclopedia Cultural Literacy World Factbook Columbia Gazetteer American Heritage Coll. Dictionary Roget's Thesauri Roget's II: Thesaurus Roget's Int'l Thesaurus Quotations Bartlett's Quotations Columbia Quotations Simpson's Quotations Respectfully Quoted English Usage Modern Usage American English Fowler's King's English Strunk's Style Mencken's Language Cambridge History The King James Bible Oxford Shakespeare Gray's Anatomy Farmer's Cookbook Post's Etiquette Bulfinch's Mythology Frazer's Golden Bough All Verse Anthologies Dickinson, E. Eliot, T.S. Frost, R. Hopkins, G.M. Keats, J. Lawrence, D.H. Masters, E.L. Sandburg, C. Sassoon, S. Whitman, W. Wordsworth, W. Yeats, W.B. All Nonfiction Harvard Classics American Essays Einstein's Relativity Grant, U.S. Roosevelt, T. Wells's History Presidential Inaugurals All Fiction Shelf of Fiction Ghost Stories Short Stories Shaw, G.B. Stein, G. Stevenson, R.L. Wells, H.G. Reference Columbia Encyclopedia PREVIOUS NEXT ... BIBLIOGRAPHIC RECORD The Columbia Encyclopedia, Sixth Edition. magnetic levitation or maglev (m v) ( KEY Translev

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