Wind power is a force of nature and it has been used for centuries like for Dutch Windmills. Permanet magnets are a force of nature which through innovation have now been produced so well that they can now hold up to 500 times their own weight. That is a lot of power. The only difference I see between wind and magentic force is that the force of magnetism has a few more restrictions. Just as a sailing ship has to direct it's sails in the direction of the wind so does a large magnet have to be focused to aim carefully at a precise angle on the ferris wheel to exert it's greatest force. The Ferris Wheel would have a repelling magnet on its side springing off the main stationary magnet as it approaches every rotation. The main stationary magnet could be shielded so that the magnetic force would be directed at the best angle to give it the most effective boost. There are even some advantages of permanent magnets over wind power since wind is inconsistant and depends on weather condtions. No such inconsistancy with permanent magnets.