How big are the objects they are 'levitating'.
I think they have to be small objects, and I think it's more like trapping then levitating.

 

How big are the objects they are 'levitating'.
I think they have to be small objects, and I think it's more like trapping then levitating.

If you watch the video you will see you are wrong.

 

Interesting that the torpedo designer guy still had what appears to be an old HP signal generator in his home lab.