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https://www.newscientist.com/article/2169809-impossible-em-drive-doesnt-seem-to-work-after-all/
Like, for instance, was the initiAL idea from a dream...MAYBE a back-engineering?
Any good physicist working with microwaves and cables knows that the cables used in microwave transmission are the "most greatly" shielded of all cables, and for those cables to move in the presence of the Earth's magnetic field is absolutely ludicrous. So very ludicrous.
Most of their setup was completely shielded from outside fields, but some of the cables did not fit inside the box and there may have been a few centimetres left unshielded, Tajmar says. The current running through those unprotected cables could interact with a magnetic field to push the EM drive forward. When they calculated the strength of this effect, they found that it could produce a few micro-Newtons of thrust. The thrust that they measured from the EM drive was 4 micro-Newtons.
his post was meant to stimulate debate about the current dialogue on EM thruster research.
Thanks for reading that fine-print, as I have, yet their description is fluff. Where is the research data that shows coaxial cables carrying a microwave field when interacting with the earths magnetic field produces such thrust?
interesting!
Quote from: opportunity on 12/07/2018 01:19:39Thanks for reading that fine-print, as I have, yet their description is fluff. Where is the research data that shows coaxial cables carrying a microwave field when interacting with the earths magnetic field produces such thrust?-We know that current-carrying wires generate a magnetic field.-We know that a force exists between two magnetic fields (in this case, that generated by the device and that generated by the Earth).-We know enough about the laws of electricity and magnetism to calculate how large that force should be. In that very same section I quoted, they said that their calculations were consistent with the measured force.
Quote from: Kryptid on 12/07/2018 05:41:36Quote from: opportunity on 12/07/2018 01:19:39Thanks for reading that fine-print, as I have, yet their description is fluff. Where is the research data that shows coaxial cables carrying a microwave field when interacting with the earths magnetic field produces such thrust?-We know that current-carrying wires generate a magnetic field.-We know that a force exists between two magnetic fields (in this case, that generated by the device and that generated by the Earth).-We know enough about the laws of electricity and magnetism to calculate how large that force should be. In that very same section I quoted, they said that their calculations were consistent with the measured force.That's OK for naked wires, yet coaxial cables carrying mircrowaves? Its very unlikely.Some of you might be familiar with a theory I've been working on regarding time and the golden ratio. The interesting thing about the theory is that it is able to "reach"/derive what appears to be EM cavity thruster technology. Here's the link for anyone interested: http://viXra.org/abs/1807.0215I think the theory is a more solid description of the effect (EM propulsion).
That's OK for naked wires, yet coaxial cables carrying mircrowaves? Its very unlikely.
Thanks Kryptid. I understand what you're saying.I've done EM thruster research, and I know in using cables the RF needs shielding, otherwise you're facing a microwave field, literally, in your face. To say cables have movement with the Earth's magnetic field with cables designed not to bleed microwave fields is..... "odd".....to say the least.A coaxial cable is a Faraday cage.....they're not designed to bleed an RF....heat, maybe, not a RF.
First, forget superlatives and assumptions.
I'll converse only if you're not ad-hoc'ing this post to suit something that you're still trying to nut out of you're own making.