Focused Energy has designed a halbach array coiled motor. It potentially be could one of the lightest, more powerful electric motors. But taking it one step further, can we actually build a magnet free motor?
Sources & Credits:
https://www.youtube.com/watch?v=x0HUYU82tRs
https://www.youtube.com/watch?v=YsSm65DAcCg
https://www.youtube.com/watch?v=Tk3lNBSAgEg
https://www.youtube.com/watch?v=FZeKFigZXWE&t=137s
https://www.youtube.com/watch?v=ilN2a7J1jYo
https://www.youtube.com/watch?v=nB-SNGKVlBI
https://www.youtube.com/watch?v=2gjCi5jXz1s