Quote from: Flyby on 06/17/2017 10:50 pmNow, if only TT would throw in some video of his "amazing results", a lot of us would be happy campers, no?There is a paper and patent in the works. Do hope the paper will make it through peer review, via the same journal as Dr. White used. Do note that Dr. White's paper is yet to make it into print. It seems that being in the Articles in Advance of JOPP is maybe as far as it will go.Will confirm that 50g at 100W or approx 5N/kW has been achieved. Working to increase that by 10x with an ultimate goal of 100-200N/kW (10-20kgf/kW) without using cryo cooling or superconducting cavities.Can share that the number of transits of the dual travelling waves (really photon wavelets) is the driver and not the Q, which while important, is really just one of the factors that determines the number of transits.
Now, if only TT would throw in some video of his "amazing results", a lot of us would be happy campers, no?
Dr.Rodal - A simple reason to have one end of the frustum with a Copper surface and the other Silver is to deliberately produce more electrical asymmetry. By all accounts geometrical asymmetry is important, as may be asymmetry introduced by dielectrics. Introducing further asymmetry by using metals with different resistivity might help. Seems to imply someone knows, or at least has a theory, as to how the asymmetry drives the force. Or maybe they have been listening here, because I did suggest something similar a few ?thousand? posts back🙂 !
Also, what would be the reason to make the big end out of copper, if the rest of the construction is silver coated?If the rest is silver coated, why not make the whole thing silver coated?if it (silver coating) is good for the goose, why isn't it good for the gander ?(Silver has 6% higher conductivity than copper)Material σ (S/m) at20 °CSilver 6.30×107Copper 5.96×107Ratio of (conductivity of silver)/(conductivity of copper) = 1.06 only 6% difference in conductivity
deliberately produce more electrical asymmetry
only 6% difference in conductivity
Quote from: Star One on 06/11/2017 01:56 pm...For the sake of clarification do you mean Dr White has abandoned his interest in EM drive?Dr. White is giving a 40 minute presentation on the EM Drive and White's QV pilot wave theory, and chairing a Breakthrough Propulsion session next week in New York's workshop:http://www.citytech.cuny.edu/physicsworkshop/Foundations of Interstellar Studies Workshop at City Tech, CUNYJune 13-15, 2017, New York, NY USADay 3: Breakthrough Propulsion, June 15, 2017Time Topic Speaker Organization08.40 Welcome by Session Chairman: Harold White08.50 1. Pilot Wave Model for Impulsive Thrust from RF Test Device Measured in Vacuum Harold G. White NASA JSC Eagleworks09.30 2. Mach Effect Gravitational Assist Drive Heidi Fearn et al. California State University Fullerton10.10 3. Entanglement and Chameleon Acceleration Glen A. Robertson GAResearch LLC
...For the sake of clarification do you mean Dr White has abandoned his interest in EM drive?
Quote from: TheTraveller on 06/17/2017 11:32 pmQuote from: Flyby on 06/17/2017 10:50 pmNow, if only TT would throw in some video of his "amazing results", a lot of us would be happy campers, no?There is a paper and patent in the works. Do hope the paper will make it through peer review, via the same journal as Dr. White used. Do note that Dr. White's paper is yet to make it into print. It seems that being in the Articles in Advance of JOPP is maybe as far as it will go.Will confirm that 50g at 100W or approx 5N/kW has been achieved. Working to increase that by 10x with an ultimate goal of 100-200N/kW (10-20kgf/kW) without using cryo cooling or superconducting cavities.Can share that the number of transits of the dual travelling waves (really photon wavelets) is the driver and not the Q, which while important, is really just one of the factors that determines the number of transits.Are you sure you did not make any magnitude error there?These numbers, (50gf/100W) do seem HUGE, compared to what we've seen so far...My first reaction is a certain degree of disbelieve, mainly because apart from words , you did not show anything yet.But at the same time, I can not believe that you, as an experienced engineer, would make all these things up as a fantasy. You often make big (sometimes inaccurate) claims and make a lot of noise/fuzz. But i can not imagine that you would deliberately lie on this...So.... I'm perplexed by the numbers you put forward, not knowing what to make of it...IF - and i can't stress the conditional enough - your numbers reflect a reality that you got an EMdrive producing 5N/kW, then this is a huge paradigm shift. All dedicated forum dwellers inhere know that...I wish i could believe it, but my modest science education dictates i need proof before I can accept this a real thing...
Quote from: TheTraveller on 06/17/2017 11:32 pmQuote from: Flyby on 06/17/2017 10:50 pmNow, if only TT would throw in some video of his "amazing results", a lot of us would be happy campers, no?There is a paper and patent in the works. Do hope the paper will make it through peer review, via the same journal as Dr. White used. Do note that Dr. White's paper is yet to make it into print. It seems that being in the Articles in Advance of JOPP is maybe as far as it will go.Will confirm that 50g at 100W or approx 5N/kW has been achieved. Working to increase that by 10x with an ultimate goal of 100-200N/kW (10-20kgf/kW) without using cryo cooling or superconducting cavities.Can share that the number of transits of the dual travelling waves (really photon wavelets) is the driver and not the Q, which while important, is really just one of the factors that determines the number of transits.Q is directly correlated with the number of times the photon transits back and forth yet it seems you imply Q is not important. I want to argue that what you might be saying is that the number of stored photons is more important than Q. So stored energy. This implies more power or energy per sec or larger cavities. If Q isn't important then you might agree that increased energy lost to something else would reduce the Q?Do you have any experimental evidence you could share with is that might indicate cavity specs, energy fed, in what manner, and with indication of resulting forces? Images also perhaps?
HOWEVER Q and number of transits, end plate adsorb and emit events, are not directly related.
If you consider the drawing "superconductive cavity with piezoelectric compensation" as a 2.0 EMdrive (as seen in TT's post, last image) design, then I can say that not so long ago, a new drawing surfaced with an YBCO on safire substrate on big end and special shaped small end (was not parabolic, to mu surprise).Also new to this design is the relocation of the RF feed to the centre of small end and use of a helicoidal antenna. Also to be noted is that the supercooling only happens on the big end of the fustrum.If that is to be considered a 3.0 design (?), that's something only R.Shawyer can answer...If not, then he'll need to explain where the difference or evolution is to be observed between 2.0 and 3.0....(attached is the 3.0 ?)
Btw, I found a pdf version of Shawyer's powerpoint presentation.(more convenient maybe?)http://www.e-catworld.com/wp-content/uploads/2017/06/Shrivenham-presentation-V.3.pdfNote that the presentation was held on February 7th 2017. So why the huge time delay?And let's stay honest, apart from the new image (potentially Yang's device) , nothing world shocking was revealed in this document.In all honesty, I found it a bit underwhelming : a lot of hot air and very little beef. So...Really? Is that supposed to impress the UK military ?Somebody really has to assist Shawyer with marketing strategies, cause a first year marketing student would get an F for such a presentation...