Well-designed Small magnets for Norwegian Importers

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  • Electromagnetic crane car picking up metal debris by the tracks in Billings, Montana. See the cool crane-crawler device that collects the old ties at http://youtu.be/nSG9jS5Q1zs.
    Intermodal train passing at http://youtu.be/WQ0q4NwcO_I



    you need to build a fast homopolar motor

    1) cylindrical neodymium magnet (more powerful is better)
    2) 1.2 V rechargeable battery (delivers more energy per unit of time than the 1.5V battery)
    3) washer used as a guide
    4) copper wire suitably shaped

    钕高速单极电机

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