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originally posted by: Erno86
I base my alien interstellar starship propulsion theory from eyewitness accounts of foo fighters, including my own double nighttime sighting; one night in November 1976.
Any kind of plasma carries photons that emanate from it...including fusion plasma.
I'm speculating that the accretion disk is capable of storing photons, till one or both of the magnetic poles attracts the photons for polar jet expulsion at near the speed of light.
I know my theory sounds so simple --- though I think I stumbled upon the idea --- But what we really need is a micro-mini black hole, preferably based on some distant asteroid; where we can study it and possibly refine it into a starship for photon propulsion.
"Black Hole Starships"
www.youtube.com...
"Black Hole Spaceship Propulsion"
www.youtube.com...
originally posted by: Arbitrageur
I never said that. Magnetic fields play a role, but they don't play any role in attracting photons like you said here:
originally posted by: Erno86
a reply to: Arbitrageur
Are you trying to say the origin of the BH's jets are not magnetic poles?
I'm speculating that the accretion disk is capable of storing photons, till one or both of the magnetic poles attracts the photons
Then why are you saying they are photons?
I favor the study that says the black hole's two jets that fly out along the black hole's spin axis, are composed of "high energy positron - electron jet plasma."
If you had said the jets were expelling "high energy positron - electron jet plasma" instead of saying they were ejecting photons earlier you might have sounded like you had some idea of the science.
The ejected photons are released at the two magnetic poles, an funneled to the thruster outlets of the starship at near the speed of light.
However you still have the problem of how to power the jets and the problem Eros mentioned of the net thrust being zero since the two jets are ejected in opposite directions. As I said we are pretty sure the accretion disk can't be the main source of power for the jets we observe in nature, and if the source of that power is lost angular momentum of the black hole, It seems to me like you can't store much of that in your "micro-mini" black hole.
The authors who claim Hawking radiation might be extracted from such a black hole may have a more plausible argument, however I'm not convinced of their claim that black holes would be easier to handle than anti-matter which is dangerous because it can explode on contact with matter. They are right about anti-matter being dangerous, but at least we've demonstrated the ability to handle small amounts of anti-matter, and to my knowledge nobody has ever demonstrated an ability to handle black holes. Black holes may sort of "explode" when they run out of fuel (mass) but I guess you'd just have to make sure to dump them before that happens (if you let the mass of the black hole get as low as one metric ton, the black hole will have about the same luminosity in watts as our sun at that point, and luminosity increases as the mass gets lower). Even before their mass gets that low, a black hole still seem pretty dangerous to me, because if anything falls into it, you're not getting it back.
originally posted by: ErosA433
originally posted by: Erno86
I base my alien interstellar starship propulsion theory from eyewitness accounts of foo fighters, including my own double nighttime sighting; one night in November 1976.
Eye witness accounts of objects they cannot understand are not really an insight on interstellar propulsion because 1) there is no direct proof that these unknown objects are spacecraft and 2) Only manouverability or apparent movement of the objects is described. So how exactly does the thought/logic trail go from "There are some objects I don't understand that move around in a way I don't quite understand" To 'BLACK HOLE PROPULSION!"
Any kind of plasma carries photons that emanate from it...including fusion plasma.
Here is your confusion, plasma does not carry photons. Emitting photons is not the same as storing and carrying. Plasma emits photons as a method of cooling. The only manner you may trap photons with a plasma is if it is of extremely high density, and even then it is not trapped, it is just that it scatters a lot. The density of an accretion disk I don't think is high enough to do such a thing. If so, there would be fusion within accretion disks, a process that would seriously disrupt the formation of the disk and its stability.
I'm speculating that the accretion disk is capable of storing photons, till one or both of the magnetic poles attracts the photons for polar jet expulsion at near the speed of light.
Under what circumstances can the photons be attracted to the magnetic pole? Photons are not magnetic in the sense that we don't bend light with magnetic fields. We might be able to change its properties, but not 'attract' it
I know my theory sounds so simple --- though I think I stumbled upon the idea --- But what we really need is a micro-mini black hole, preferably based on some distant asteroid; where we can study it and possibly refine it into a starship for photon propulsion.
"Black Hole Starships"
www.youtube.com...
"Black Hole Spaceship Propulsion"
www.youtube.com...
What we need is to re-write the universe to have different physics, The concept of harvesting the energy of an accretion disk is not new, its been written about lots of different ways. It would be more efficent to gather that energy and use it than to use the jets, because the jets give you a net zero thrust.
Not only that but, we have no way of making de-generate material, let alone the environment to create a black hole, or even hold it should we want to.
SO once again, it this idea or theory is a cascade of incorrect assumptions and incorrect physics.
Oddly enough, the most feasible idea I've seen for interstellar travel is a fairly destructive system. You explode a sequence of nuclear bombs (sort of a "shaped charge design, aimed at your ship) near your space ship, and the shock waves propel your ship. The idea involved a pusher plate and you could calculate how much ablation of the plate would occur with each nuclear bomb detonated, so it was destructive but the idea was to make the plate thick enough so the total amount of ablation was less than the total thickness of the plate. It would help to have some kind of shock absorber(s) between the plate and the ship as shown in the sketch of the space ship seen at this link.
originally posted by: ErosA433
If it is photons, it would basically destroy the system over time, not only that but radiation damage would be immense.
"It is observed that under certain physical conditions, the singularity expressed by the relativistic stretch factor 'gamma' as the spacecraft's speed (v) approaches the speed of light (c), is no longer present in the physical picture, this involves the instantaneous removal of energy-mass from the system (spacecraft) when the spacecraft's speed reaches v=c/2."[/exnews
"Conditional Possibility of Spacecraft Propulsion at Superluminal Speeds"
www.deepdyve.com...
Except a Hall effect thruster requires propellant and the EM drive claims no propellant is involved.
originally posted by: ErosA433
On the EM drive Im kind of getting the impression it is really working as a hall effect thruster, but, im open to it working as theorized too, just seems less efficient than a hall effect thruster thats all
We're not completely sure that it works though. Thermal expansion hasn't been ruled out yet. First, a guy with an "antigravity machine" with a Garfield sticker on it mistakes thermal expansion for something else, and maybe now NASA? At least NASA realizes thermal expansion can skew experimental results, something which the antigravity machine guy apparently never figured out.
originally posted by: andy06shake
a reply to: ErosA433
Just because we do not understand how it works, in its entirety, does not mean there are not practical applications through.
There's a lot more work to be done before we can say for sure whether the EM Drive is really producing thrust – the team notes they that more research is needed to eliminate the possibility that thermal expansion could somehow be skewing the results.
And even once that's confirmed, we'll then need to figure out exactly how the system works.
Erno, you have a really bad habit of saying something, and then posting a link to something in apparent support of your claim which is talking about something else entirely. In this case you're talking about a black hole and your source isn't, but anyway your source doesn't make much sense. It seems to be claiming if a mass could reach the speed of light, then the equations diverge to infinities and singularities, but even if that's true, it doesn't say how you can ever get to exactly the speed of light, because from all our experience, all you can do is add more "9"s, like from .9c to .99c to .999c and so on, but without an infinite supply of energy this will never reach 1.0c, so you never really get to find out if the claims in the paper about the divergences are really true or not because you never get there.
originally posted by: Erno86
With the micro-mini black hole's radius shield surrounding the starship, leaves both the shield and the starship having zero rest mass. Hence...under such conditions, faster than light photon propulsion is feasible.
originally posted by: Jukiodone
As good a place as any:
Paper highlighting the Navy's upcoming test - specifically not "to discover new physics"- but instead to test only for anomalous thrust.