[AR] Re: NASA test of quantum vacuum plasma thruster (was "Anyone heard of this?")
- From: Keith Henson <hkeithhenson@xxxxxxxxx>
- To: arocket@xxxxxxxxxxxxx
- Date: Wed, 6 Aug 2014 06:47:03 -0700
On Wed, Aug 6, 2014 at 1:41 AM, Peter Fairbrother <zenadsl6186@xxxxxxxxx> wrote:
> On 06/08/14 05:47, Troy Prideaux wrote:
>>
>> As we've concluded here many times in the past, rockets don't care
>> how fast they're going with respect for the surroundings. More energy
>> or more Isp per given mass ratio = better performance as per the
>> rocket equation. It does matter a lot with air breathing propulsion,
>> but not with rockets or for that matter the technology of current
>> discussion.
>
> I think maybe it does matter with this technology - if it doesn't then it
> would be a perpetual motion machine, and even less likely to work.
Then the laws of physics, at least as they apply to this technology,
would have to be variable depending on velocity. Then the question
becomes velocity with respect to *what*?
I was amused by a comment on a recent discussion of power satellites
about how this would make transporting the parts to GEO easier. If
this is real, it's the future energy source, forget power satellites.
Keith
> -- Peter Fairbrother
>
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