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When particles group together in loose association- though the individual masses of all involved particles is positive; negative energy conditions must be present because the aggregate mass can be effectively zero. the only way this can happen is via the presence of negative energy or mass.
The arument has been made with reference to Casimir cavities but as far as i know not any of the other examples. plus it has to be said that if the states have the same effects or properties as the real article then there is no point in quibbling over it as it makes no difference. on top of that the bare mass thing has to be real. if it weren't we would not be here to argue about it
originally posted by: ChaoticOrder
I would argue that none of the things you mentioned are examples of real negative energy with a negative mass, they are all examples of relative negative energy, when something appears negative when compared to something else. For example the pressure generated by the Casimir effect is only negative relative to the pressure of the normal vacuum, it's not truly an example of negative energy which would produce a negative mass. The squeezed light and the torus example are exactly the same.
When particles group together in loose association- though the individual masses of all involved particles is positive; negative energy conditions must be present because the aggregate mass can be effectively zero. the only way this can happen is via the presence of negative energy or mass.
In what situation would a group of particles have zero mass and how do we know they have zero mass? I've never heard of such a phenomena, I'm very skeptical such a thing really exists. Here's a thread I created a few days ago in which I discuss some ideas relating to negative energy and negative mass: Bimetric Relativity, Twin Universe Cosmology, Negative Energy.
plus it has to be said that if the states have the same effects or properties as the real article then there is no point in quibbling over it as it makes no difference.
on top of that the bare mass thing has to be real.
originally posted by: ChaoticOrder
a reply to: stormbringer1701
plus it has to be said that if the states have the same effects or properties as the real article then there is no point in quibbling over it as it makes no difference.
It does make a difference when it comes to Cosmology, you need to know what is actually negative energy and what just behaves like negative energy. Also it may make a difference when it comes to building actual warp drives because we will probably need real negative energy to actually warp space-time, emulations of negative energy most likely wont work in practice.
on top of that the bare mass thing has to be real.
What you are talking about is a renormalization process used to deal with infinities, and depending on the theory you use the bare mass may also be positive or negative, so it seems anything but clear to me.
I am following that thread and to tell the truth sometimes the math and theorizing causes my eyes to cross and glaze over due to the dense nature. And it is possible i may have missed it but the only FTL waves i can recall that were brought up as a potential cause for the results was evanescent waves when the RF penetrates the skin of the material of the dialectric or the frustrum. evanescent waves can go FTL but only in a tiny region under specific conditions and they cannot themselves transfer this FTL state to other objects. the way they were being discussed was that they could be the working fluid that imparts a bit of thrust (on the order of a measly photon rocket) to the system. I'm not sure that went anywhere and it was brought up as an alternate explanation to Dr white's own explanation.
originally posted by: pfishy
a reply to: stormbringer1701
First, let me say that, this being ATS and all, I am always extremely hesitant to click on any thread dealing with negative energy/mass, zero point energy, speculative FTL technology, etc. But, considering that it's you, stormbringer, I figured I would give it a shot. And you did not disappoint. Most of these threads usually turn out to be people attempting to push YouTube 'science' that has long been debunked. But you unfailingly do your due diligence when you get scientific on us.
I wanted to add one thing that you didn't bring up. NASA's recent experimentation with EM drive tech has seemingly caused light to break it's own speed limit. In the resonance chamber of their experimental design, it appears that the EM waves are propagated across certain areas at +C. This, of course, must be verified, and they are planning to conduct several tests in different conditions (vacuum chamber, etc.) to see if they have actually interpreted these initial findings correctly. But causing light to exceed C has a vast range of very interesting implications. Especially if it is happening the way they think it is. The only theoretical explanation that fits so far is that in the areas of the resonance chamber where this appears to be occurring the fabric of spacetime is being locally and very slightly altered to allow the apparent violation of Relativity.
In other words, it is being contracted at the leading edge of the wave and expanded behind it. This, my friends, it the very essence of the Alcubierre FTL (warp) Drive Theory. Basically, in relation to it's local piece of real estate, the photons are not exceeding C. But to an observer outside of the affected area of spacetime, the photons are going from point A to point B in a shorter amount of time than would be possible according to SRT and GRT.
This could explain why the EM drive technology produces thrust when, according to current understanding of the laws of Nature, it shouldn't.
Of course, this is all subject to verification of the apparent violation of C. I'm sure most of us recall the erroneous Neutrino experiment at Gran Sasso in Italy, where they initially reported a seeming violation of C in the speed of the particles they were detecting from the beam source at CERN. Ultimately, is was a faulty cable connection that caused the false readings. NASA has been very forward about stating that they have not actually confirmed their findings, and that much more testing is needed. Which is obviously the smart move. But, if confirmed, this would be as groundbreaking as penicillin, splitting the atom, the discovery of radiation, or bacon. It could potentially open up the entire Galaxy to mankind.
Personally, I haven't seen enough about it yet to develop a real opinion as to the veracity of the observations. There hasn't been a great deal of coverage concerning it because NASA is seriously downplaying it at this point. Which is the wise move. It is being considered nothing more than an interesting interpretation of the data, and worth follow-up to see if it is repeatable. And that's exactly how good science works. So, until it's confirmed or proven to be an error, all we can do is wonder. But it still makes me think of the potential technological outgrowth. Altair 6, here I come!
but the zero aggregate mass from positive mass components seems to require negative energy and mass to balance the proven positive mass of the component particles.
I think you are mistaken that negative energy shown so far is not cosmic.
originally posted by: ChaoticOrder
a reply to: stormbringer1701
but the zero aggregate mass from positive mass components seems to require negative energy and mass to balance the proven positive mass of the component particles.
My problem with this idea is that you're basically saying every particle contains positive and negative energy, which is why many physicists seem to believe that the negative energy is held in the gravitational field. If you read the thread I linked to then you already know why I don't agree with that idea. There's a reason why the worste prediction in physics is the number you get when calculating the total vacuum energy created by virtual particles. I think there is a simple solution which comes naturally with bimetric cosmology; you model virtual particles as not only happening in our universe but also occurring in equal amounts in the twin universe. Since they occur in equal amounts on large scales they cancel each other out and there is no vacuum catastrophe. There is also no need to say the bare mass of a particle such as the electron is negative because the virtual particles don't add as much mass as expected.
It is literal. if you are bending space into an unatural curvature that is a cosmic level effect no matter the magnitude.
originally posted by: ChaoticOrder
a reply to: stormbringer1701
I think you are mistaken that negative energy shown so far is not cosmic.
You may be right, but I prefer a much more literal approach to negative energy because I think bimetric cosmology explains more than any other theory in cosmology. Real negative energy should possess a negative mass and it should therefore be possible to detect negative matter particles which repel positive matter particles. None of the phenomena you mentioned actually exhibit signs of real negative mass, they are all approximations of negative energy. We have never actually detected negative matter with repulsive gravity, but if it exists we should never expect to find any since it will all be repelled away from our huge positive mass galaxy.
originally posted by: stormbringer1701
The energy of gravitation in a system of two gravitationally bound masses of different values is negative because in order to maintain the distance between the two positive energy must be constantly added to keep them apart.
he has a signal. it is slightly above the expected Signal to noise level. but it is a vulnerable claim until he gets a bigger signal. skeptics can always claim he has overlook a source of spurious signal or made a measurement error when the signal and noise level are so close even though it rises marginally above noise level.
originally posted by: pfishy
a reply to: stormbringer1701
Well, NASA did just test the basic drive tech in hard vacuum. While I have not seen anything relating to follow-up observations of the potential FTL issue, I'd imagine that was a parameter they were observing. And you make a good point about evanescence, I hadn't considered that. I'm honestly expecting it to be a miscalculation or instrumentation error, like the OPERA fiasco, but either way, it certainly gets the imagination going.
originally posted by: swanne
originally posted by: stormbringer1701
The energy of gravitation in a system of two gravitationally bound masses of different values is negative because in order to maintain the distance between the two positive energy must be constantly added to keep them apart.
Hm, intriguing indeed.
But I believe the "force" that keeps these bodies apart is angular momentum? And since angular momentum is technically related to acceleration, it is not an actual force, it is a fictitious force.