KISS Thruster project is abandoned. Sorry to say but there is no such thing as a low cost and simple to build EmDrive. My bad mistake.
Achieved 5N/kW with 50g thrust using 100W rf. Non cryo and non superconducting.
Believe TE011 mode is the way to go as it increases the number of end plate adsorb & emit events.
My work is now focused on TE011 cavities with big end plates as the modelling shows they can deliver higher Q and higher number of transits.Have yet to build a TE011 spherical end plate cavity as building the highly curved small and big end plates to a optical tolerance of 1/10 wave accuracy is not an easy nor low cost task.
On arxiv today:https://arxiv.org/abs/1706.04999An improved method to measure microwave induced impulsive forces with a torsion balance or weighing scaleEDIT Added from a few days agohttps://arxiv.org/abs/1701.08117A New Torsion Pendulum for Gravitational Reference Sensor Technology Development
Funny Business at the ArXiv McCulloch is not the only physicist facing this kind of omerta from arXiv anonymous administrators. I know others. Although publishing in peer-review academic, non predatory access journals, they have in common being alternate candidates to standard ΛCDM concordance cosmological model. It's a topsy-turvy world: the arXiv, which used to be a preprint server, now acts like a peer-review postprint club, at least in the field of cosmology.
Dr. Rodal - by silver plating one end of a copper piece, one can increase asymmetry and simultaneously raise Q - if you accept that Q rises as resistance falls.
Quote from: flux_capacitor on 06/19/2017 01:34 pmFunny Business at the ArXiv McCulloch is not the only physicist facing this kind of omerta from arXiv anonymous administrators. I know others. Although publishing in peer-review academic, non predatory access journals, they have in common being alternate candidates to standard ΛCDM concordance cosmological model. It's a topsy-turvy world: the arXiv, which used to be a preprint server, now acts like a peer-review postprint club, at least in the field of cosmology. Scientists with breakthrough ideas have to break through and work within the peer review system, just like a patent clerk (Einstein) in Switzerland was able to break through more than 100 years ago. It was even more difficult at that time than it is now to get published and to be heard. In the end, if one has a real scientific breakthrough it will be known, and in time, be accepted by the peer-review process.
...Except Einstein published his founding papers in 1905 in German in Annalen der Physik, a journal with a high acceptance rate (90-95%) with no anonymous referees, but identified editors he could discuss with....
There has been an explosive number of journals since then, and I for one am very thankful for the peer review process for "cutting down the noise".
Quote from: flux_capacitor on 06/19/2017 03:56 pm...Except Einstein published his founding papers in 1905 in German in Annalen der Physik, a journal with a high acceptance rate (90-95%) with no anonymous referees, but identified editors he could discuss with....Annalen der Physik was a most prestigious journal, and papers had to be communicated by experts in the field. Yes, I certainly agree that the peer review process was very different at that time (1905) than it is now, (and later on while in the US Einstein became upset at the peer review process) but the number of people working in Physics, and the number of journals was also much smaller than it is now. There has been an explosive number of journals since then, and I for one am very thankful for the peer review process for "cutting down the noise".
I think it's clear that to the vast majority of scientists, EMDrive, MEGA drives, Mach effects and all such attendant ideas such as propellent-less propulsion are considered noise if not crackpot ideas. These ideas have to fight very very hard for recognition. Those here that do the work in these fields are hero's.
Quote from: Bob012345 on 06/19/2017 06:22 pmI think it's clear that to the vast majority of scientists, EMDrive, MEGA drives, Mach effects and all such attendant ideas such as propellent-less propulsion are considered noise if not crackpot ideas. These ideas have to fight very very hard for recognition. Those here that do the work in these fields are hero's.As long as they have empirical evidence and the scientific method (based on open exchange of information and independent replications) on their side, yes, they are.But failing that, such 'heroic' people would only be strongly deluded -or just persistent- crackpots.I think both the Emdrive and MEGA thrusters so far fulfill the above requirements for being incipient science, with their replication information freely available and experiments now being out of the control of any single individual.But it doesn't make them totally free of the pitfalls of cargo cult science. Like people seeing (or asserting to see) things that aren't there, because of over-eagerness or the simple wish for them to be true.
Guys,Interesting breadcrumb from Roger.Who is the US company, AIM, that has detailed knowledge of EmDrive theory AND has solved the EmDrive high Q acceleration issue?Why has Roger decided to out AIM?
Some notes on my progress towards construction:When you have a hammer, everything looks like a nail. On the flip side of that nugget of wisdom, being adaptive gets the job done. In my case the hammer is a 3D printer of good quality and size, so I will be putting my thoughts into using it. Without going too much into the realm of plastics engineering, let me just say that for purposes other than EMdrive I am going to be printing in a much stiffer, tougher, higher-temp plastic than is normally used. I will be printing in Ultem 1010. This should enable me to overcome any issues with temperature and stiffness with the cheaper, more common ABS (but at a higher cost).Then there is the plating issue. While electroless plating of ABS is well documented, the same can't be said of Ultem. I'll have to get good at plating Ultem before I can dive into making a cavity out of it.Why not silver? Yes, it's only 6% more conductive. It's more expensive, but prohibitively so? I checked yesterday and the spot price of silver is $16.69/Ounce (I know I'd be paying more retail). Plating can produce a very thin layer, making the most out of that ounce, depending on surface area and plating thickness. Also, Plating can be restricted to the useful interior surface only, but I may want to plate the outside for better heat dissipation. And, speaking of heat, it is not just the increase in Q that the use of silver provides, but also of course reduction in waste heat, which not only causes measurement issues but could also deform lesser plastics such as ABS, or even, under high power, Ultem. In other news, my two LimeSDRs have arrived. I'll be doing some VNA tests on my existing 2.4 gHz antennas to get a feel for its capabilities before I tackle any EMdrive cavitities. Which I should do anyhow, as I have too many 2.4 gHz omnis and should sell off most of them (contact me if you are interested).And yes, I plan to do the plating myself. I've looked at electroless and it doesn't seem too difficult or dangerous.I plan on having ironed out the difficulties with plating of copper and /or silver on Ultem in a few months. This will enable me to not only try out my own cavity designs, but also take orders from others for their designs. I can't give exact figure on the cost yet, but my Ultem should be much cheaper than what is currently being offered in the 3D printing market.Other tidbits: skeptical but not dismissive of TT's claims, waiting for his paper & patent. Also, Arxiv's treatment of McCullough is bad but not atypical. I'll leave out my rants on the deficiencies of the current practice of science.Best,RWK