[AR] Re: [UK OFFICIAL] Re: NASA test of quantum vacuum plasma thruster (was "Anyone heard of this?")
- From: Aplin Alexander T <ATAPLIN@xxxxxxxxxxxxxxxx>
- To: "arocket@xxxxxxxxxxxxx" <arocket@xxxxxxxxxxxxx>
- Date: Mon, 4 Aug 2014 13:18:40 +0100
Classification: UK OFFICIAL
Handling Instruction: DISCLAIMER - this is a personal e-mail and only
represents only the views of the sender
Jake Anderson:
>I do like the idea of the test being done in basically a clear bell jar inside
>a (large) Faraday cage.
>I also like the pendulum, however I'm less keen on the piezo pressure sensor.
>I suggest a laser interferometer aimed at the pendulum.
>If you want to verify thrust in a direction put 2 test devices on it, have the
>oppose each other, turn one on you should get a displacement in one direction,
>turn it off you should return to zero, >turn the other on displacement in the
>opposite direction, you don't need to make any changes inside the test device
>to perform the test which is nice.
FWIW Jerry Pournelle (SF author and former aerospace engineer who previously
encountered the 'Dean Drive') is also pro the 'pendulum in vacuum' test method:
http://www.jerrypournelle.com/chaosmanor/dean-drive-and-nasa/
And
http://www.jerrypournelle.com/chaosmanor/dean-drive-and-many-other-matters-a-mixed-mail-bag/
Alex Aplin
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