Quote from: aero on 11/19/2014 12:39 amDon't read to much into my fields graphic. It might be weak/strong field. But I'm sure that blue is strong e-field. I'll find out and of course tell all QuoteBriefly, the -Zc dkbluered makes the color scale go from dark blue (negative) to white (zero) to dark red (positive), The cavity was excited with an Ez field, (electric field) so the colors are a measure of the electric field. I could excite with a magnetic field if that would be helpful.There should be an electric field and a magnetic field inside the cavity. In some modes (TE) the electric field is rotational (transverse). Then the magnetic field is axial. It is obtained as (1/omega) times the curl of the transverse electric field. Where omega is the angular frequency (2 Pi f ).In other modes (TM) the magnetic field is rotational (transverse). Then the electric field is axial. It is obtained as (c^2/omega) times the curl of the transverse magnetic field.Higher modes have the fields in smaller domains, with nodes (zero field points) in between the domains.Preferably, in a numerical solution, you should get both the electric and magnetic fields at once. If you cannot get both field solutions at once, then by all means excite them separately (but of course keep exactly the same frequency and boundary conditions).
Don't read to much into my fields graphic. It might be weak/strong field. But I'm sure that blue is strong e-field. I'll find out and of course tell all QuoteBriefly, the -Zc dkbluered makes the color scale go from dark blue (negative) to white (zero) to dark red (positive), The cavity was excited with an Ez field, (electric field) so the colors are a measure of the electric field. I could excite with a magnetic field if that would be helpful.
Briefly, the -Zc dkbluered makes the color scale go from dark blue (negative) to white (zero) to dark red (positive),
But it logically follows (to me) that for somebody ... who thinks that the dielectric placement in the microwave cavity has an interaction with the Quantum Vacuum, that they ... would place the dielectric always in a consistent manner both in the Cannae and the truncated cone, and if they wouldn't I would expect them to write about it and explain why they would have placed it inconsistently.
Inertia is a property of matter.
Or did I just demonstrate my vast ignorance again?
Upon closer inspection, it is suggested that only the plate having the larger diameter (R1) be made of metglas 2714A to obtain the amplified thrust in the indicated direction.
...It is also not clear to me what kind of power each of the pulses produces from this transmitter. The input power is a maximum 30 V DC at 4 to 20 mA. But since it is a pulsed microwave, this does not necessarily inform what the power would be for each pulse.Thoughts?
Quote from: DIYFAN on 11/19/2014 06:01 am...It is also not clear to me what kind of power each of the pulses produces from this transmitter. The input power is a maximum 30 V DC at 4 to 20 mA. But since it is a pulsed microwave, this does not necessarily inform what the power would be for each pulse.Thoughts?Well, the propulsive efficiency of the "advertised" experimental devices is very low. For some reason, I seem to be the only person to put this in English: The devices aim to convert electrical energy into linear momentum. Therefore it is reasonable to consider the energy input as the analog of propellant. While propulsive efficiency itself could be improved with a demonstration of the effect, it would make sense to crank up the input power.Other than the pesky theoretical details, the thought to be "positive" results continue, after a decade or so of experimentation under wildly varying theories of operation, can barely be discerned from the underlying noise.There have been a handful of suggestions up thread to increase the input power so as to increase the expected thrust results. You aren't gonna make the Kessler run in a handful of *cough* parsecs on 4 to 20 mA, and I'm thinking you aren't gonna get "positive" results with such a small power input.But hey. What do I know? I'm just a gadfly.
Pathological science is the process by which "people are tricked into false results ... by subjective effects, wishful thinking or threshold interactions". The term was first used by Irving Langmuir, Nobel Prize-winning chemist, during a 1953 colloquium at the Knolls Research Laboratory.....The maximum effect that is observed is produced by a causative agent of barely detectable intensity
...But hey. What do I know? I'm just a gadfly.
Well, the propulsive efficiency of the "advertised" experimental devices is very low. For some reason, I seem to be the only person to put this in English: The devices aim to convert electrical energy into linear momentum.
When asked by the audience (@59 minutes) where is this technology going to be 20 years from now (2034) Dr. White says that he has no answer to that. One doesn't get a sense of any great urge from NASA to really promptly advance this "Research" into anything (certainly not reminiscent of the late 1950's/early 1960's, if somebody would have asked where we were going to be in 20 years from then...)
"In 2008 the Russian Research Institute of Space Systems launched an experimental micro-satellite called Yubileiny (Jubilee) with a "non-traditional" engine which, according to Director Valery Mesnshikov, functions without ejecting reaction mass. Yubileiny (Jubilee), a Russian technology development satellite which was built by NPO PM to commemorate the 50th anniversary of the launch of Sputnik 1, the first artificial satellite to be placed into Earth orbit. It launched , 23 May 2008 aboard a Rockot rocket from LC-133 at the Plesetsk Cosmodrome. Launch was delayed from the end of 2007, and from earlier in 2008. It was a secondary payload to a cluster of three Gonets satellites, utilising the excess capacity of the carrier rocket.However, it was later stated that "further developments" were needed and nothing further appears to be been published on Russian reactionless drives."
I think this is just Sonny being careful. He's knows enough not to sound too enthusiastic. ....
Quote from: Ron Stahl on 11/19/2014 03:43 pmI think this is just Sonny being careful. He's knows enough not to sound too enthusiastic. ....Has he has been careful and not enthusiastic with his published conference papers extrapolating quick trips to Enceladus based on a completely unproven technology that he is running now and planning to run in the future at only 0.2% to 0.16% the power that the Chinese and Shawyer have been running ?. Has he been careful and not enthusiastic in hinting that the EM Drive results may be due to Quantum Vacuum interaction (whose force he predicted should be perpendicular to the E and B fields, therefore perpendicular to the measured force in the Eagleworks microwave cavity tests)?. Or in proposing that there is an energy paradox even with conventional rocket engines using propellants?Or in proposing that the negative mass necessary for the Alcubierre drive could be as small as the size of the Voyager probe?But he must be careful and not too enthusiastic in orally answering a question as to where we are going to be in 20 years with this technology, asked by a youngster in a T-shirt during an informal internal NASA Ames presentation ?
After a few days of really thinking hard about the build, here's what I'm planning:...
Am thinking or trying something with my friend and a copper frustum with a 900w magentron (out of a uWave oven of course.) Planning to suspend the whole setup on piano wire...What we hope is that we get a nice deflection cos of the high power.Is this a good way to go about it?
Am thinking or trying something with my friend and a copper frustum...