>> But they claim to have run tests to specifically exclude this
>> possibility in a vacuum chamber and they say they're not ions.

> Got a specific page with photos and/or measurements of one of the
> lifters operating in vacuum?  I think you have to get pretty hard
> vacuum before you do away with ion effects.  Sputtering, radiometers,
> vacuum depositation, and others are examples of significant ion effects
> in partial vacuums...

I also had HEARD of claims that it worked in pure vacuum. But I've never 
seen anything concrete.

You could do a fairly good test with less than full vacuum by demonstrating 
the effect as pressure reduces.


        RM 

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