I would assume that the guys working on these devices have the expertise to ensure that a very minimum amount of RF is escaping from their shielded cavity. This is not too difficult to achieve in real life with highly conductive cavities.
Also, the actual thrust due to photons being emitted is extremely tiny due to their low mass when compared to the overall device. Dave -----Original Message----- From: Eric Walker <eric.wal...@gmail.com> To: vortex-l <vortex-l@eskimo.com> Sent: Tue, Mar 15, 2016 11:08 am Subject: Re: [Vo]:Re: EM Drive(s) On Tue, Mar 15, 2016 at 8:48 AM, David Roberson <dlrober...@aol.com> wrote: Of course thrust would be generated if RF is directed away from the drive into space. Unfortunately, this is not happening in these devices since they are well shielded and keep the RF from escaping. There was an interesting YouTube video that was mentioned here within the last year, maybe, that showed how RF could readily escape from a metal trashcan that was being used as a Faraday cage if electrical conducting tape was not used to carefully tape down the lid. Has the question of (non-microwave) RF been systematically investigated in connection with the EM Drive? At a minimum, even in the case of a Faraday cage, I assume there will be a conversion to black/graybody radiation. Presumably such radiation would not be unidirectional, but it would still be measurable. I'm curious whether anyone has looked at the general question of escaping RF yet. Eric
