> I really hope this is real, but it just seems to be too good to be true.

As do I, but the whole thing kind of smacks of a cartoon character
sitting in a sailboat with an electric fan pointed at the sail.

The question of forces on the sloped edges of the conical chamber
is a good one, but that may only be valid from a Newtonian physics
standpoint.  As far as Newtonian physics is concerned, this whole
idea is bunk.  Einstein may have something more to say about the
subject, however.

Mike H.
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