Ok , heres the deal , i would like to build a small electromagnetic train ..... ( not really a train , but you know what i mean...... no bigger than an "N" scale train , if you know anything about model trains) i just want a basic simple setup that goes in a circle ..... no bigger than a dinner plate, lets say 12 inches in diameter. I cant seem to find a thing about it on the internet , and dont have a clue where to begin ...... dont tell me to go to the local library or book store because there isnt a decent one within 100 miles of me. I suck at math , i dont know a thing about magnets , but i can learn. Any input on doing this would be greatly appreciated. Some of the things i need to know ... how much power might something that small need...... what kind of computing power would i need to run these electromagnets (to run the sensors and transfer of the poles).... and where in he** would i find these items?