Re: Emdrive might change the law of inertia (for the Earth too!)

From	Sylvia Else <sylvia@not.at.this.address>
Newsgroups	sci.space.policy
Subject	Re: Emdrive might change the law of inertia (for the Earth too!)
Date	2016-10-20 14:15 +1100
Message-ID	<e6qr6hFeqi4U1@mid.individual.net> (permalink)
References	<5d05aa4c-8348-465b-be49-ebfc641f46d3@googlegroups.com> <nu5bvg$s45$1@dont-email.me> <8e4b369a-56ff-4ecc-bcc0-a299acd1f0c0@googlegroups.com>

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On 19/10/2016 7:45 AM, dumpster4@hotmail.com wrote:
> Superconducting EMDrive Patented:
>
> "Shawyer describes a new EMdrive thruster design that has a single flat
> superconducting plate on one end, with a uniquely shaped, non-conducting plate
> on the other.
>
> This is necessary to minimiZe the internal Doppler shift - a change in
> frequency or wavelength of a wave for an observer moving relative to its source
> - and also keep manufacturing costs down.
>
> * It enables the drive to be easily manufactured
> * It will make a viable superconducting thruster easier. Shawyer believes a
> superconducting thruster will produce a lot of thrust
>
> Shawyer is working with an unnamed UK aerospace company to develop his second
> generation EM Drive, which he says will produce thrust many orders of magnitude
> greater than that observed by NASA’s Eagleworks team or any other laboratory."
>
> See:
>
> http://www.nextbigfuture.com/2016/10/superconducting-emdrive-patented.html
>
>

The patent application is here

<https://www.ipo.gov.uk/p-find-publication-getPDF.pdf?PatentNo=GB2537119&DocType=A&JournalNumber=6647>

Looks to me like a microwave photon drive, with a bunch of stuff thrown 
in which may, or may not, actually improve its performance. In 
particular, I'm sceptical of the super-conducting aspect given the 
requirement to keep the conductors cold.

Even if it works, it is not a reaction-less drive. Photon drives are 
known to he possible, but they don't produce much thrust.

The strategy of obtaining a patent on something that is real, but not 
particularly effective, can be used to convince clueless investors that 
they're investing in something revolutionary.

Sylvia.

Thread

Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2016-10-12 01:37 -0700
  Re: Emdrive might change the law of inertia (for the Earth too!) Sylvia Else <sylvia@not.at.this.address> - 2016-10-13 11:58 +1100
    Re: Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2016-10-16 02:32 -0700
      Re: Emdrive might change the law of inertia (for the Earth too!) Rob <nomail@example.com> - 2016-10-16 09:39 +0000
        Re: Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2016-10-16 03:11 -0700
          Re: Emdrive might change the law of inertia (for the Earth too!) Rob <nomail@example.com> - 2016-10-16 10:18 +0000
      Re: Emdrive might change the law of inertia (for the Earth too!) Sylvia Else <sylvia@not.at.this.address> - 2016-10-17 11:57 +1100
        Re: Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2016-10-17 02:09 -0700
          Re: Emdrive might change the law of inertia (for the Earth too!) Sylvia Else <sylvia@not.at.this.address> - 2016-10-18 14:44 +1100
  Re: Emdrive might change the law of inertia (for the Earth too!) David Spain <nospam@127.0.0.1> - 2016-10-18 10:35 -0400
    Re: Emdrive might change the law of inertia (for the Earth too!) dumpster4@hotmail.com - 2016-10-18 13:45 -0700
      Re: Emdrive might change the law of inertia (for the Earth too!) David Spain <nospam@127.0.0.1> - 2016-10-18 22:50 -0400
      Re: Emdrive might change the law of inertia (for the Earth too!) Sylvia Else <sylvia@not.at.this.address> - 2016-10-20 14:15 +1100
        Re: Emdrive might change the law of inertia (for the Earth too!) David Spain <nospam@127.0.0.1> - 2016-10-21 14:54 -0400
          Re: Emdrive might change the law of inertia (for the Earth too!) dumpster4@hotmail.com - 2016-11-05 17:47 -0700
            Re: Emdrive might change the law of inertia (for the Earth too!) David Spain <nospam@127.0.0.1> - 2016-11-06 15:36 -0500
              Re: Emdrive might change the law of inertia (for the Earth too!) David Spain <nospam@127.0.0.1> - 2016-11-06 16:12 -0500
                Re: Emdrive might change the law of inertia (for the Earth too!) dumpster4@hotmail.com - 2016-11-07 16:33 -0800
                Re: Emdrive might change the law of inertia (for the Earth too!) David Spain <nospam@127.0.0.1> - 2016-11-10 02:59 -0500
                Re: Emdrive might change the law of inertia (for the Earth too!) David Spain <nospam@127.0.0.1> - 2016-11-10 03:02 -0500
                Re: Emdrive might change the law of inertia (for the Earth too!) dumpster4@hotmail.com - 2016-11-19 14:52 -0800
                Re: Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2016-11-24 01:01 -0800
                Re: Emdrive might change the law of inertia (for the Earth too!) Jeff Findley <jfindley@cinci.nospam.rr.com> - 2016-11-24 07:41 -0500
                Re: Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2016-11-24 09:12 -0800
                Re: Emdrive might change the law of inertia (for the Earth too!) Jeff Findley <jfindley@cinci.nospam.rr.com> - 2016-11-24 12:38 -0500
                Re: Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2016-11-24 10:11 -0800
                Re: Emdrive might change the law of inertia (for the Earth too!) Rob <nomail@example.com> - 2016-11-24 17:43 +0000
                Re: Emdrive might change the law of inertia (for the Earth too!) David Spain <nospam@127.0.0.1> - 2016-11-26 14:14 -0500
                Re: Emdrive might change the law of inertia (for the Earth too!) Rob <nomail@example.com> - 2016-11-26 19:21 +0000
                Re: Emdrive might change the law of inertia (for the Earth too!) "Greg \(Strider\) Moore" <mooregr@deletethisgreenms.com> - 2016-11-26 22:11 -0500
                Re: Emdrive might change the law of inertia (for the Earth too!) David Spain <nospam@127.0.0.1> - 2016-11-28 12:50 -0500
                Re: Emdrive might change the law of inertia (for the Earth too!) Jeff Findley <jfindley@cinci.nospam.rr.com> - 2016-11-28 12:56 -0500
  Re: Emdrive might change the law of inertia (for the Earth too!) William Mook <mokmedical@gmail.com> - 2016-11-22 22:16 -0800
    Re: Emdrive might change the law of inertia (for the Earth too!) William Mook <mokmedical@gmail.com> - 2016-11-23 00:37 -0800
      Re: Emdrive might change the law of inertia (for the Earth too!) William Mook <mokmedical@gmail.com> - 2016-11-23 18:22 -0800
        Re: Emdrive might change the law of inertia (for the Earth too!) William Mook <mokmedical@gmail.com> - 2016-11-23 19:49 -0800
          Re: Emdrive might change the law of inertia (for the Earth too!) William Mook <mokmedical@gmail.com> - 2016-11-23 21:15 -0800
        Re: Emdrive might change the law of inertia (for the Earth too!) Jeff Findley <jfindley@cinci.nospam.rr.com> - 2016-11-24 07:38 -0500
          Re: Emdrive might change the law of inertia (for the Earth too!) William Mook <mokmedical@gmail.com> - 2016-11-24 13:44 -0800
            Re: Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2016-11-24 14:30 -0800
              Re: Emdrive might change the law of inertia (for the Earth too!) Alain Fournier <alain245@videotron.ca> - 2016-11-24 18:46 -0500
                Re: Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2016-11-24 23:20 -0800
              Re: Emdrive might change the law of inertia (for the Earth too!) William Mook <mokmedical@gmail.com> - 2016-11-24 17:32 -0800
                Re: Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2016-11-24 23:38 -0800
          Re: Emdrive might change the law of inertia (for the Earth too!) William Mook <mokmedical@gmail.com> - 2016-11-29 08:12 -0800
            Re: Emdrive might change the law of inertia (for the Earth too!) dumpster4@hotmail.com - 2016-12-03 19:15 -0800
              Re: Emdrive might change the law of inertia (for the Earth too!) David Spain <nospam@127.0.0.1> - 2016-12-06 13:02 -0500
                Re: Emdrive might change the law of inertia (for the Earth too!) dumpster4@hotmail.com - 2016-12-20 23:05 -0800
              Re: Emdrive might change the law of inertia (for the Earth too!) William Mook <mokmedical@gmail.com> - 2016-12-21 01:31 -0800
                Re: Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2017-01-06 15:28 -0800
                Re: Emdrive might change the law of inertia (for the Earth too!) dumpster4@hotmail.com - 2017-02-14 01:42 -0800
                Re: Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2017-02-15 10:19 -0800
                Re: Emdrive might change the law of inertia (for the Earth too!) David Spain <nospam@127.0.0.1> - 2017-04-12 23:17 -0400
                Re: Emdrive might change the law of inertia (for the Earth too!) Non Newtonian Propulsion <calmagorod@gmail.com> - 2017-04-21 14:28 -0700

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