Greetings, I'm a physics newbie with a simple (?) question. If it's free-floating, where does the energy come from to power the lights, controls, etc. inside a moving maglev train? Another related question, if data needs to be transmitted to a moving maglev train, can it be done through conventional wireless communications? I was thinking that a strong magnetic field might interfere with a wireless signal, but then I thought that only charged particles would be deflected by a magnetic field. Can anyone tell me if my thinking is on the right 'track'.