At 09:53 AM 11/8/2009, Frank Roarty wrote:
At 1:14 AM on , November 08, Abd ul-Rahman Lomax wrote
To: froarty...@comcast.net; vortex-l@eskimo.com
At 06:07 PM 11/7/2009, Frank Roarty wrote:
>Abd,
> I have to take exception with your arguments. The claim is the EM
>drive is an "open" system based on Relativity.
What does that mean and how does it apply to the emdrive?
[reply]
Open in the sense that it can utilize energy to displace itself spatially.
That's circular, it's using the word very differently. And that sense
isn't related to "closed." Closed, in this context, would mean no
exchange of matter with its surroundings, nor any exchange of energy
except thermally. I found conflicting definitions on Wikipedia.
I fail to understand what relativity has to do with "open" or "closed."
A
reaction drive is obviously open where you exchange momentum with an ejected
fuel but you would not call an electric plane reactionless because it is
directing the ambient atmosphere into thrust.
Shawyer is suggesting a
relativistic linkage between his apparatus and space-time such that just
like the electric plane prop he can create a differential inside his cavity
vs outside.
He doesn't mention "space-time." He's merely asserting that
relativistic equations apply to the group velocity of the microwaves
in his cavity. He's not making the claim you state.
...but here in this experiment Shawer claims to
be bending space-time inside the cavity and trying to make it react with
space-time outside the cavity -perhaps space-time can only react with
reshaped versions of itself and this is the elusive oar we are seeking?
He makes no such claim. Where did you see that?
Looking around, I see that nearly everything I've said here has been
said elsewhere.
http://www.assassinationscience.com/johncostella/shawyerfraud.pdf
Here is the paper that Costella refers to. Indeed, the "error" is
obvious. Except I don't think it was an error, Shawyer knows of the
objection about the force normal to the wall, he answers it in his
FAQ. It was deliberate obfuscation.
http://www.newscientist.com/data/images/ns/av/shawyertheory.pdf
