Posted by clueless [201.237.45.94] on Wednesday, June 11, 2014 at 13:43:56 :
In Reply to: Short question posted by Sherman in Idaho [72.47.153.28] on Wednesday, June 11, 2014 at 13:00:45 :
it was patented by garret circa 1935
he demonstrated a motor running on it back the
according to the article i posted about his patent
only one way to find out for sure