Russ, I don't know if this has been mentioned previously, but there has been a hobbiest replication. Definitely a good place to start.
http://www.masinaelectrica.com/emdrive-independent-test/ Jack On Thu, Mar 17, 2016 at 8:22 PM Russ George <[email protected]> wrote: > Agreed the largest added Q comes from super-cooling. I had asked about > silver over copper as it is very simple and inexpensive to electroplate > silver onto a copper EM Drive. Building a LN2 cooled EM Drive has all > manner > of engineering issues. Perhaps the 6% added thrust from silver plated > copper > is observable and sufficient to prove the Q effect. The next issue is what > is the ideal microwave electronics and antennae design, as in what > brand/model of microwave oven do I buy to cannibalize for parts. > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > Sent: Thursday, March 17, 2016 1:31 PM > To: [email protected] > Subject: Re: [Vo]: EM Drive(s) > > In reply to Russ George's message of Thu, 17 Mar 2016 11:18:21 -0700: > Hi, > [snip] > >In building a Shawyer EM Drive cavity copper is typically used but Shawyer > notes a higher Q would result with silver. Would a cavity that was made of > copper sheet then electroplated with silver suffice to give the cavity the > Q > of silver? Is there any potential for improved Q based on the design of the > internal cavity antennae that emits the microwaves. > > The conductivity of silver relative to copper is not all that much, so I > wouldn't expect much of a gain anyway. Far more gain should be obtained by > cooling. According to Tesla, cooling with liquid nitrogen gives a 5 fold > improvement. > Regards, > > Robin van Spaandonk > > http://rvanspaa.freehostia.com/project.html > > >
