Morris Jessup's "The Case for the UFO" - annotated version

[HiThere]

I am reading this now, and in one of the notations, mr B says "a circular pattern of magnets 342 of them, have no weight if they are attached to a common sheet of metal & are XXXXXXXXX. In short, they float in the air, all 900 lbs of them.XXXXXXXX1&2."

I wonder if anything would happen if one tried out this recipe?