See http://www.space.com/7067-laser-propulsion-wild-idea-finally-shine.html
On Thu, Jun 27, 2013 at 12:47 PM, Axil Axil <[email protected]> wrote: > I envision a LERN space engine to be a variant of the polariton LASER. The > LASER window will be transparent to infrared light which would be the > engine's propellant. > > Superconductivity would be supplied at high temperatures of about 800C and > supported by the LENR reaction. > > Such a LASER could be built now using a properly configured Ni/H reactor > today with an infrared transparent wall installed at one end of the reactor > (the thruster end). > > The Key to this design concept is the material characteristics of the > LASER window. > > Many ceramic materials, both glassy and crystalline, have found use as > optically transparent materials in various forms from bulk solid-state > components to high surface area forms such as thin films, coatings and > fibers. Such devices have found widespread use for various applications in > the electro-optical field including: optical fibers for guided lightwave > transmission, optical switches, laser amplifiers and lenses, hosts for > solid-state lasers and optical window materials for gas lasers, and > infrared (IR) heat seeking devices for missile guidance systems and IR > night vision. > > > > > > > > * * > > > On Thu, Jun 27, 2013 at 12:19 PM, francis <[email protected]> wrote: > >> Axil,**** >> >> The waveguide and the microwaves delivered to it are the >> medium for the EM drive, there is no hydrogen or Ni powder involved >> although I suspect it might benefit from it but creating a magnetically >> transparent window would degrade the cavity- perhaps an aperature with the >> proper geometry could divide a portion of the microwave energy assuming >> thrust is in the same direction as the magnetic radiation but Shawyer >> claims his device relies on SR which makes me question any need to “direct” >> thrust outside the device – if he can segregate particle pairs with >> microwaves similar to Casimir effect segregating larger virtual particles >> then he can start to play games with time dilation- reports that >> spontaneous emission rates are delayed in microwave cavities makes me >> suspect that gas atoms in a waveguide are subjected to longer wavelengths >> as opposed to shorter wavelengths in a Casimir cavity but in both cases I >> believe it is a matter of local segregation by vacuum wavelength that will >> sum equal to the isotropy and the trick is to arrange the playing field to >> exploit one region in favor of another. My point is the inner surfaces can >> be made to exist in different inertial frames by virtue of different vacuum >> wavelengths regions – and the normal cancelation of rf pressure can become >> unbalanced and accumulate in the resonant cavity. IMHO this is how he >> accumulates thrust without propellant by instead pushing unevenly against >> the temporal dimensions of the inner walls.**** >> >> Fran**** >> >> ** ** >> >> Axil >> Axil<http://www.mail-archive.com/[email protected]&q=from:%22Axil+Axil%22> >> Thu, >> 27 Jun 2013 08:09:32 >> -0700<http://www.mail-archive.com/[email protected]&q=date:20130627> >> **** >> >> *"the system is a Faraday shield and a magnetically transparent window** >> ** >> >> would release the working medium." ***** >> >> ** ** >> >> Is it your opinions that a the system with a magnetically transparent*** >> * >> >> window that holds the working medium cannot be designed?. "**** >> >> ** ** >> >> ** ** >> > >
