On Thu, Feb 5, 2015, at 06:02 PM, Bob Blick wrote:

>=20
> 6. Homopolar motor or "World's Simplest Electric Train".

https://www.youtube.com/watch?v=3DxbCN3EnYfWU

https://www.youtube.com/watch?v=3DJ9b0J29OzAU



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