Maglev Train by 10 kilometer Permanent magnets

[ze-ro]

I want know that can we build a long Permanent magnet for a Maglev way ?

Please say that its possible ?

(i attached one picture , with that you can understand that what is my question and what is a long Maglev way by a Permanent magnet)

 

[ze-ro]

http://en.wikipedia.org/wiki/Maglev_train#Existing_maglev_systems

 

[ze-ro]

we can build that long magnet?