> I believe these electrostatic/capacitive
> whatever systems ionise the surrounding air and
> push upon it with the "asymetrical" charge.
> In space there will be no matter to push against
> and it won't work. :o)


The website SAYS that there is a larger effect in air and a smaller one in
vacuum with the latter not being well understood by NASA. This is what I
referred to when suggesting use as a thruster. Conceivably one could look at
arcane effects such as generation of an "electron beam" - they didn't say
how small the small effect was :-)



        RM

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