81. Specter Pledges To Push To Get Long-delayed Maglev Project Going Article about Senator Arlen Specter s support of the Pittsburgh Maglev project. http://www.post-gazette.com/transportation/20030813maglev0813xxp2.asp

Pittsburgh, Pa. Local News Latest News Previous Articles Neighborhoods ... First Amendment Specter pledges to push to get long-delayed Maglev project going Wednesday, August 13, 2003 By Jim McKay, Post-Gazette Staff Writer U.S. Sen. Arlen Specter yesterday reiterated his support for the proposed Maglev project in Pennsylvania as its backers unveiled a student design for a potential station Downtown. The state's senior Republican senator met with Maglev Inc. officials to assess their long-running program in advance of upcoming budget talks in Washington, D.C. Specter is a senior member of the U.S. Senate Appropriations subcommittee on transportation. "It requires a vision for the future. It's expensive, but it is worth it," he said of the project, which has been under development for more than a decade and still faces an uncertain future. The senator touted the project's potential to create jobs in steel used for the train's guideways and in other industries. He compared it with building the transcontinental railroad in the 19th century. "It will be a bonanza all along the line every community it passes through," he said.

82. Magnetic Field Levitation Of A Frog Molecular magnetism and levitation. Something to amuse. http://www.hfml.sci.ru.nl/levitate.html

83. Magnetic Levitation Magnetic Levitation Lenz's law induction - Faraday's law What it shows A magnet tethered over a spinning aluminum disc levitates due to induced currents in the disc. http://www.fas.harvard.edu/~scdiroff/lds/ElectricityMagnetism/MagneticLevitation

Magnetic Levitation Lenz's law - induction - Faraday's law What it shows: A magnet tethered over a spinning aluminum disc levitates due to induced currents in the disc. How it works: As the disc spins, electrical currents are induced in the aluminum as it moves with respect to the magnet. These induced currents create a magnetic field which, in accordance with Lenz's law, opposes the field of the magnet. The magnetic repulsion causes the rider to levitate about 1cm above the disc. Lenz's law also says that the induced field will oppose the motion that causes it. The magnet therefore tugs at the disc trying to slow it and, in the process, is pulled along in the direction of rotation of the disc. Figure 1. Looking down onto the disc: magnetic rider and safety screen The disc is made of 6mm aluminum sheet, and is 70cm in diameter. There is a clearance of 0.5cm between it and the plywood casing. The aluminum disc is mounted upon a 25cm diameter 6mm brass plate which is attached to the drive shaft. A 4mm clear Plexiglas safety cover overlays the top of the disc and casing. The magnetic rider consists of a pair of samarium cobalt magnets taped to an aluminum sheet (10x10cm). This sheet is tethered by cord to a wooden anchor block beside the disc (figure 1). A Plexiglas safety screen (8cm high) crosses the disc in case the rider comes free.

84. 上海磁浮官方网站 Magnetic levitation train operating between Pudong International Airport and Longyang Road station attaining a top speed of 270 miles/hour making it the fastest commercial train in the world. Includes background information, schedules and rates, company profile and news centre. http://www.smtdc.com/

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