I have advance & very agressive prostate cancer. Prostate has been removed along with a 9cm dia cancer mass. Seems they didnt get it all, so I'm back in hospital.Haven't read the forum for days & likely will not for 3-5 more days.
Quote from: cej on 06/26/2015 11:15 pm...1. Small vibrations (heat) that are external to the drive's frustum: like a Brownian motor. An inertial ratchet could become buoyant by inducing its own pressure gradient: particles would impart more momentum on the large end than the small end....Could you elaborate on this "buoyant" effect and provide some references?(...)
...1. Small vibrations (heat) that are external to the drive's frustum: like a Brownian motor. An inertial ratchet could become buoyant by inducing its own pressure gradient: particles would impart more momentum on the large end than the small end....
It is interesting because in my model of QG (...)
Quote from: rfcavity on 06/26/2015 10:14 pmQuote from: WarpTech on 06/26/2015 09:53 pmRegarding resonant modes in the frustum. Would there still be resonant modes if;1. the frustum were open on the big end only?2. the frustum were open on both ends?IF I understand these modes correctly, the TExx0 modes resonate with the pointing vector radial in/out-ward from the axis to the walls. It seems to me, that a cone that is open on both ends would still support the same TEnm modes, just not the p modes. Correct?If it's closed at the small end, it should still support odd harmonics of p modes. Correct?Thank you!ToddIt would support TExx modes but they would be travelling, out the end of the device. It wouldn't be a energy store like normal closed cavities, but simply an antenna.https://en.wikipedia.org/wiki/Horn_antennaSo even though the rectagon wire dimensions are a multiple of the 2.45 ghz wavelength the waves would still pass? I know since the magnetron is such a wide band emitter you're probably right.Shell
Quote from: WarpTech on 06/26/2015 09:53 pmRegarding resonant modes in the frustum. Would there still be resonant modes if;1. the frustum were open on the big end only?2. the frustum were open on both ends?IF I understand these modes correctly, the TExx0 modes resonate with the pointing vector radial in/out-ward from the axis to the walls. It seems to me, that a cone that is open on both ends would still support the same TEnm modes, just not the p modes. Correct?If it's closed at the small end, it should still support odd harmonics of p modes. Correct?Thank you!ToddIt would support TExx modes but they would be travelling, out the end of the device. It wouldn't be a energy store like normal closed cavities, but simply an antenna.https://en.wikipedia.org/wiki/Horn_antenna
Regarding resonant modes in the frustum. Would there still be resonant modes if;1. the frustum were open on the big end only?2. the frustum were open on both ends?IF I understand these modes correctly, the TExx0 modes resonate with the pointing vector radial in/out-ward from the axis to the walls. It seems to me, that a cone that is open on both ends would still support the same TEnm modes, just not the p modes. Correct?If it's closed at the small end, it should still support odd harmonics of p modes. Correct?Thank you!Todd
@TheTravellerHave a swift recovery. We'll be here when you get back. @TheTravellerMay I second that as well.Been there done that - [a 1 in a million cancer that should have killed me], Ignore what is irrelevant, be thankful for the support of your family and the continued gift of life. Be positive of outlook, though these days are dark and come out stronger at the end.Look forward to more sparkling conversations in the future.Take care-I
Quote from: SeeShells on 06/26/2015 10:28 pmQuote from: rfcavity on 06/26/2015 10:14 pmQuote from: WarpTech on 06/26/2015 09:53 pmRegarding resonant modes in the frustum. Would there still be resonant modes if;1. the frustum were open on the big end only?2. the frustum were open on both ends?IF I understand these modes correctly, the TExx0 modes resonate with the pointing vector radial in/out-ward from the axis to the walls. It seems to me, that a cone that is open on both ends would still support the same TEnm modes, just not the p modes. Correct?If it's closed at the small end, it should still support odd harmonics of p modes. Correct?Thank you!ToddIt would support TExx modes but they would be travelling, out the end of the device. It wouldn't be a energy store like normal closed cavities, but simply an antenna.https://en.wikipedia.org/wiki/Horn_antennaSo even though the rectagon wire dimensions are a multiple of the 2.45 ghz wavelength the waves would still pass? I know since the magnetron is such a wide band emitter you're probably right.ShellNo Shell, what he's saying is if the end were open, no mesh at all, it would pass through to space (air). I'm still curious to know if there is say, a stable TE010 mode in a cylinder, when the ends are open rather than closed. One that is not traveling out the end. Probably the tolerance for such stability in a cylinder is too tight? I think if you had a cylinder with a bulge in the middle, it could trap the mode there, but otherwise there is nothing to stabilize it without both ends in place.Todd
Quote from: WarpTech on 06/27/2015 07:02 amQuote from: SeeShells on 06/26/2015 10:28 pmQuote from: rfcavity on 06/26/2015 10:14 pmQuote from: WarpTech on 06/26/2015 09:53 pmRegarding resonant modes in the frustum. Would there still be resonant modes if;1. the frustum were open on the big end only?2. the frustum were open on both ends?IF I understand these modes correctly, the TExx0 modes resonate with the pointing vector radial in/out-ward from the axis to the walls. It seems to me, that a cone that is open on both ends would still support the same TEnm modes, just not the p modes. Correct?If it's closed at the small end, it should still support odd harmonics of p modes. Correct?Thank you!ToddIt would support TExx modes but they would be travelling, out the end of the device. It wouldn't be a energy store like normal closed cavities, but simply an antenna.https://en.wikipedia.org/wiki/Horn_antennaSo even though the rectagon wire dimensions are a multiple of the 2.45 ghz wavelength the waves would still pass? I know since the magnetron is such a wide band emitter you're probably right.ShellNo Shell, what he's saying is if the end were open, no mesh at all, it would pass through to space (air). I'm still curious to know if there is say, a stable TE010 mode in a cylinder, when the ends are open rather than closed. One that is not traveling out the end. Probably the tolerance for such stability in a cylinder is too tight? I think if you had a cylinder with a bulge in the middle, it could trap the mode there, but otherwise there is nothing to stabilize it without both ends in place.ToddYour right, without anything to stop the propagation of the waves and the harmonic patterns they would just shoot out the large end. I thought he meant something like this thought experiment I drew up.
Quote from: WarpTech on 06/27/2015 07:02 amQuote from: SeeShells on 06/26/2015 10:28 pmQuote from: rfcavity on 06/26/2015 10:14 pmQuote from: WarpTech on 06/26/2015 09:53 pmWarp and Shell,Pardon the plain language, its the way my brain works, math and precision language will follow (way behind I might add). There are converging ideas here I have been trying to assimilate into a theorem in my rusty scientific mind, so I'll give you my 2c (pun intended) FWIW before I start my assembly tonight.CoM must remain in effect. Anything leaving the frustum must "push" against something (TE standing waves or TM magnetic repulsion) or be "attracted" to something (TM magnetic attraction). My vote is pushing against something, the TE component of EM. An open cavity is a horn, a simple MW antenna, is akin to turning on the garden hose and letting it run. A cavity is a garden hose nozzle, backing up water pressure then releasing with "thrust". So I envision the frustum cavity as a nozzle, building up em back pressure.A mechanical device resonating MW energy that pulses or leaks out under pressure, is pushing against the electromagnetic soup surrounding us...call it aether, call it what you will. In the soup, there a complex mix of EM radiation. It is thin, and whatever hits it, setting up chaotic, random standing waves, resulting in a force (see Doc's acoustic video).So we have a vapor thin EM soup here and in the cosmos...interacting with it is no minor challenge. The frustum must generate enough kinetic energy that it disrupts the soup and pushes off if it. A montrous amount of eV energy in comparison to the background eV. Call it delta eV.I believe the frustum is trying to to this, ratchet, burp or leak will depend on the design. Looks like the UK boys had a simple gasket, which I would call a leak method. Guess it could be a ratchet release if the "gasket" had some properties that allowed energy to build up before it was burped (flux capacitor aside ;^) )...so peaked my interest in graphene.Regardless, as you are finalizing your paper, thought I would spew out my half-baked ideas after spending much time reading everyone's great posts here and more than a few paper on the interwebs. Good luck on the paper and sorry for the stream of consciousness...
Quote from: SeeShells on 06/26/2015 10:28 pmQuote from: rfcavity on 06/26/2015 10:14 pmQuote from: WarpTech on 06/26/2015 09:53 pm
Quote from: rfcavity on 06/26/2015 10:14 pmQuote from: WarpTech on 06/26/2015 09:53 pm
Quote from: WarpTech on 06/26/2015 09:53 pm
Quote from: SeeShells on 06/27/2015 01:59 pmQuote from: WarpTech on 06/27/2015 07:02 amQuote from: SeeShells on 06/26/2015 10:28 pmQuote from: rfcavity on 06/26/2015 10:14 pmQuote from: WarpTech on 06/26/2015 09:53 pmYour right, without anything to stop the propagation of the waves and the harmonic patterns they would just shoot out the large end. I thought he meant something like this thought experiment I drew up.Nice drwg, shell...perhaps a mesh at the large end may allow a release of EM after a buildup...so little info on mesh, such as is there a "flashpoint" that radiates at a certain eV potential or does it all simply get converted to heat. Technically, mesh holes are invisible @ 2.45 GHz and you could theoretically apply infinite energy and the holes would remain invisible...melted perhaps, but invisible
Quote from: WarpTech on 06/27/2015 07:02 amQuote from: SeeShells on 06/26/2015 10:28 pmQuote from: rfcavity on 06/26/2015 10:14 pmQuote from: WarpTech on 06/26/2015 09:53 pmYour right, without anything to stop the propagation of the waves and the harmonic patterns they would just shoot out the large end. I thought he meant something like this thought experiment I drew up.
Quote from: rfmwguy on 06/27/2015 01:45 pmQuote from: WarpTech on 06/27/2015 07:02 amQuote from: SeeShells on 06/26/2015 10:28 pmQuote from: rfcavity on 06/26/2015 10:14 pmQuote from: WarpTech on 06/26/2015 09:53 pm...You are right in the laws of CoM and CoE and Maxwell and... have to be observed but within those laws is a key that can unlock this issue of thrust. I was up till 3am last night reading and trying to work out this idea I have like a old dog with a bone and it's a tough bone. In the transmission of evanescent waves (and they are around all antennas) there exists a high order force in the evanescent wave structure that carries momentum and longitudinal spin determined by the wave vector and circular polarization, respectively it is proven that these waves are not virtual and I think they can present a high order hook into the quantum vacuum providing thrust by pushing against those virtual particles.A virtual particle in the Quantum Vacuum is a disturbance in a field that is something that is caused by the presence of other particles and their associated fields and an evanescent wave with it's high order actions can create a virtual particle and interact with it.This is similar to Dr. Whites EMDrive generating a virtual particle jet within the cavity but not the same, as I think the effects arise from the evanescent waves and the first order forces they carry of momentum and spin in a virtual particle.Hot tub time!Shell
Quote from: WarpTech on 06/27/2015 07:02 amQuote from: SeeShells on 06/26/2015 10:28 pmQuote from: rfcavity on 06/26/2015 10:14 pmQuote from: WarpTech on 06/26/2015 09:53 pm...
...IF I understand these modes correctly, the TExx0 modes resonate with the pointing vector radial in/out-ward from the axis to the walls...
Quote from: SeeShells on 06/27/2015 03:10 pmQuote from: rfmwguy on 06/27/2015 01:45 pmQuote from: WarpTech on 06/27/2015 07:02 amQuote from: SeeShells on 06/26/2015 10:28 pmQuote from: rfcavity on 06/26/2015 10:14 pmQuote from: WarpTech on 06/26/2015 09:53 pm...You are right in the laws of CoM and CoE and Maxwell and... have to be observed but within those laws is a key that can unlock this issue of thrust. I was up till 3am last night reading and trying to work out this idea I have like a old dog with a bone and it's a tough bone. In the transmission of evanescent waves (and they are around all antennas) there exists a high order force in the evanescent wave structure that carries momentum and longitudinal spin determined by the wave vector and circular polarization, respectively it is proven that these waves are not virtual and I think they can present a high order hook into the quantum vacuum providing thrust by pushing against those virtual particles.A virtual particle in the Quantum Vacuum is a disturbance in a field that is something that is caused by the presence of other particles and their associated fields and an evanescent wave with it's high order actions can create a virtual particle and interact with it.This is similar to Dr. Whites EMDrive generating a virtual particle jet within the cavity but not the same, as I think the effects arise from the evanescent waves and the first order forces they carry of momentum and spin in a virtual particle.Hot tub time!ShellI am hoping you do not have a "virtual" hot tub...just sayin' Circular evanescent waves, huh? Perhaps you should look at one of my options down the road, a 2.45 GHz helix antenna: http://www.rcbits.com.au/files/IBC-2400-Helical95.JPGCompact, circular polarization and 9.5dB of gain...will be a challenge at 800W to design so it won't melt, but a magnetron mounted on top, attached directly to plate and coil was going to be my fallback if I chose to continue my project at higher power levels. Since you are already at hi power, have at it!
This is the Normalized thrust-to-power curve in the range of t < 1 period, i.e., in the Evanescent wave range, and it's inverse, which is the effective refractive index. It looks like the Permeability, B/H curve of a transformer core!Todd
Quote from: sghill on 06/26/2015 06:47 pm...P.S. A corollary thought is: if the material matters (it interacts) with respect to the flux escape, then should SeeShells' copper mesh EMDrive show increased performance in with respect to cone size and power input compared with a sheet copper EMDrive?Not necessarily if the mesh opening is homogeneous throughout. It may show increased peformance if:a) no mesh opening or much smaller mesh opening on all surfaces except the small end b) specially designed nozzle like openings at the small end in a whispering-gallery mode (which is known to enhance evanescent wave coupling) as shown in aero's movie:http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=37642.0;attach=1033772(did aero know about whispering-gallery modes enhancement of evanescent wave coupling or did he independently think of it ?)
...P.S. A corollary thought is: if the material matters (it interacts) with respect to the flux escape, then should SeeShells' copper mesh EMDrive show increased performance in with respect to cone size and power input compared with a sheet copper EMDrive?
The motor boat wave interference pattern looks sort of like the wakes seen in the Feynman QM double slit experiment as found here: https://www.iop.org/news/13/mar/page_59670.html
Quote from: WarpTech on 06/27/2015 04:48 pmThis is the Normalized thrust-to-power curve in the range of t < 1 period, i.e., in the Evanescent wave range, and it's inverse, which is the effective refractive index. It looks like the Permeability, B/H curve of a transformer core!ToddThat's also fairly consistent with Prof. Yang's reported thrust to power values !
One other thought that keeps popping in and out and how the evanescent momentum and spin vectors of the wave interacting with the Quantum Vacuum virtually homogeneous ZPF is it will no longer be homogeneous due to the everanscent's wave actions on it. It will literally warp the area of space 1/3 of the wavelength (where evanescent waves form) of the microwave harmonics from the frustum and...
Quote from: Rodal on 06/27/2015 04:53 pmQuote from: WarpTech on 06/27/2015 04:48 pmThis is the Normalized thrust-to-power curve in the range of t < 1 period, i.e., in the Evanescent wave range, and it's inverse, which is the effective refractive index. It looks like the Permeability, B/H curve of a transformer core!ToddThat's also fairly consistent with Prof. Yang's reported thrust to power values !One other thought that keeps popping in and out and how the evanescent momentum and spin vectors of the wave interacting with the Quantum Vacuum virtually homogeneous ZPF is it will no longer be homogeneous due to the everanscent's wave actions on it. It will literally warp the area of space 1/3 of the wavelength (where evanescent waves form) of the microwave harmonics from the frustum and in doing so space itself warps. Will it be like the images I see with the alcubierre warp drive? Will I see a corresponding opposite effect in front of the frustum?Shell PS: Or am I off in left field here guys and gals and have a run away imagination? edit: writting booboos