MAGLEV (Magnetically levitated trains) Trains that fly!!!!!!
MAGNETIC LEVITATION1. Process of suspending an object in air with the help of magnetic fields2. Moving a good electrical conductor like gold on a magnet produces eddy currents on the conductor3. At a sufficiently high rate of movement, a suspended magnet will levitate on the metal, or vice versa with suspended metal4. Superconductors bieng fully diamagnetic repel magnetic fields and can levitate when a sufficiently high amount of magnetic field is applied
The History of Magnetic Levitation Vehicles 1- 1750 – John Mitchell conducted the first experiments measuring the magnetic forces between the poles of a magnet . 2-1900 – Robert Goddard and Emile Bachelet conceive the concept of frictionless trains. 3.-1969 – American scientist James R. Powell and Gordan T. Danby patented the first design for Maglev trains. 4-1970 – German and Japanese engineers start research and development towards their versions of Maglev technology.
2003 – The Shanghai Trans-rapid Maglev Line is inaugurated.
How maglev works 1-A maglev train floats about 10mm above the guide way on a magnetic field. 2-2 ways of levitating a train-Electromagnetic suspension(EMS) and Electrodynamic suspension(EDS). 3-Both ways have the same underlying concept-a magnet will repel another magnet.In both cases magnets in both the track and the undercarriage of the train repel each other to levitate the train.
Advantages 1- Because the train floats along there is no contact with the ground and therefore no need for any moving parts.Hence there are no components that would wear out. 2- The trains are virtually impossible to derail because the train is wrapped around the track. 3-The trains can attain speeds upto 500km/hr which is not economically viable for commercial railways
Disadvantages 1-The biggest problem is that it is much more costly than conventional track railways and governments around the world arent willing to invest so heavily in such a project. 2-Anotherproblem is that the EM waves from the tracks may affect mobiles and pacemakers of heart patients