The video was from 2001 energy convention in Seattle Wa. the video showed this motor working. when it was new it could run slightly uphill.
The linear motor runs on Permanent magnet Energy, only.
The device proves the concept works because one wheel will rotate 1 1/2 turns and with all 6 that is 9 turns in the length of travel
anything that goes over 1 turn is free energy. the motor track is only 18 inches long but if the track was never ending it would run for many years.
I can make a video of this device at a later date, it is 20 years old and needs an overhaul.
Thanks Tom