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Everything posted by swansont
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Why exactly cannot cat be in a superposition state?
swansont replied to Genady's topic in Quantum Theory
Then the next question is what does it take to collapse a wave function thats in a superposition? -
Why exactly cannot cat be in a superposition state?
swansont replied to Genady's topic in Quantum Theory
Superposition state implies quantum mechanics. Is being dead, or alive, a quantum state? -
Closed Dyson sphere : is it really impossible ?
swansont replied to Edgard Neuman's topic in Astronomy and Cosmology
But it's not from the sun (in direction), if the pressure is building up. Then it's just a gas contained inside a sphere. Solar wind gives a radial force that depends on distance from the origin. A gas in a container, by itself, does not give a force that depends on distance. Then you need to calculate how big this will be. It's the gradient that gives you a restoring force, not the pressure itself. There needs to be a different pressure on one side vs the other to give this force. I was responding to your first post. But why does the sphere need to be supported? That's a different effect than keeping it centered on the sun. -
Why exactly cannot cat be in a superposition state?
swansont replied to Genady's topic in Quantum Theory
In addition to studiot's observation above, is there a connection between the quantum states of the individual atoms and the condition of being alive or dead? -
James Webb Telescope and L2 Orbit Question
swansont replied to exchemist's topic in Astronomy and Cosmology
No. The number could be higher or lower, depending on how the intrinsic brightness and distance vary. Webb has a mirror that has ~7x larger area, so you gather more light, and it’s optimized for a different wavelength range. Both would factor into seeing stars the Hubble can’t detect. (edit: Why are infrared observations important to astronomy? Stars and planets that are just forming lie hidden behind cocoons of dust that absorb visible light. (The same is true for the very center of our galaxy.) However, infrared light emitted by these regions can penetrate this dusty shroud and reveal what is inside. https://www.jwst.nasa.gov/content/about/comparisonWebbVsHubble.html ) I think the resolving power of Hubble and Webb are similar. More pixels isn’t necessarily better, since you get less light per pixel, but if they have better signal/noise this would factor into being able to detect faint stars. -
Is "anti-quantum" a concept in mainstream physics?
swansont replied to Ghideon's topic in Quantum Theory
AFAIK, that is the case. In any event, it appears to be basically undefined. In physics, if it is not quantum it is continuum. -
A Quantum Model having a Mechanism for Wavepacket Reduction (Revised)
swansont replied to SEKI's topic in Speculations
Why, did you not read my previous post where I did so? -
Closed Dyson sphere : is it really impossible ?
swansont replied to Edgard Neuman's topic in Astronomy and Cosmology
How do you arrive at this number? If the pressure is due to this, you lose the restorative force. There is no differential pressure from translation. It’s like balloon, which does not maintain a position from its internal pressure. -
Closed Dyson sphere : is it really impossible ?
swansont replied to Edgard Neuman's topic in Astronomy and Cosmology
Solar wind is fairly weak in terrestrial terms (1 ATM being ~10^5 Pa) "The wind exerts a pressure at 1 AU typically in the range of 1–6 nPa ((1–6)×10−9 N/m2)" https://en.wikipedia.org/wiki/Solar_wind The differential pressure for a slightly off-center sphere would be much smaller. Not much "correction" would be happening -
A Quantum Model having a Mechanism for Wavepacket Reduction (Revised)
swansont replied to SEKI's topic in Speculations
It's already been pointed out that QM (Schrödinger's equation) deals with energy and not forces - we deal with interactions. One of the issues here is that it's not clear whether the wave packet being referenced is a wave function, or the deBroglie wave. Some statements imply one, and some imply the other. They are not the same thing. How can a wave function feel a force? How does a deBroglie wave have an internal force? One of these, at least, must be addressed. -
Should NHS Staff in the UK Face Mandatory Vaccination?
swansont replied to Alex_Krycek's topic in Politics
Asking you to provide citations for data you present is a legitimate request, not something that can be dismissed as a personal tit-for-tat. -
Should NHS Staff in the UK Face Mandatory Vaccination?
swansont replied to Alex_Krycek's topic in Politics
And the next step is to compare that to the normal turnover rate. Vaccinations may just be an excuse, or the last item, for some people who were prone to leaving anyway. -
Should NHS Staff in the UK Face Mandatory Vaccination?
swansont replied to Alex_Krycek's topic in Politics
You've cited that number a couple of times now, but does it have any real meaning? There have been a number of cases where the number of people who allegedly threatened to walk off the job if forced to get vaccinated, and yet when it came time to do so, the number who actually did was far smaller. It's a mostly empty threat. https://www.npr.org/2021/09/29/1041500566/vaccine-mandate-quit-research -
A Quantum Model having a Mechanism for Wavepacket Reduction (Revised)
swansont replied to SEKI's topic in Speculations
But it's not negligible. Schrödinger predicts an infinite-extent spatial wave function for a single-valued momentum, and you say this isn't true for your idea, but give no information about what the wave function would look like. Plus you haven't made any connection to Feynman diagrams, AFAICT. (Which work exceedingly well, BTW) -
A Quantum Model having a Mechanism for Wavepacket Reduction (Revised)
swansont replied to SEKI's topic in Speculations
You haven't presented a way to test the idea of a cohesive force. You are claiming it without evidence. It's too vague. I can't point out what's wrong if there's nothing to point at. You give an example of a particle with a specific momentum, and point out that "According to the traditional theory, however, finite-sized wave packet and specific energy-momentum are not compatible." which is true. So if the spatial wave function is not of infinite size, as QM says it is, you are discarding Schrödinger's wave mechanics. And not replacing it. You own the burden of proof here. Demonstrate that you are right. Come up with evidence and/or testable predictions. -
A Quantum Model having a Mechanism for Wavepacket Reduction (Revised)
swansont replied to SEKI's topic in Speculations
It's unfortunate that you are seemingly throwing out Schrödinger's formulation and have nothing to replace it with. Do you have anything that would allow your idea to be tested and falsified? -
! Moderator Note If you aren’t discussing Djokovic’s situation, you are off-topic for this thread
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To be fair, that wasn’t measured until well after the model was proposed, so “contradicted” might not be the best description. It took some time to be sure that unknown masses in the solar system weren’t responsible, and that this was truly an anomaly.
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Matterga banned as a sockpuppet of MarcoBarbieri
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A Quantum Model having a Mechanism for Wavepacket Reduction (Revised)
swansont replied to SEKI's topic in Speculations
Mathematical model. -
I agree that 3 is wrong. QM actively contradicted classical physics, and relativity actively contradicted Galilean/Newtonian notions. It became apparent that these existing models were incomplete and/or had areas where they failed.
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A Quantum Model having a Mechanism for Wavepacket Reduction (Revised)
swansont replied to SEKI's topic in Speculations
I see no equations. You have no model. You don’t have a model, and haven’t presented enough to be able to point out more flaws than have already been identified. You don’t have a model. Copenhagen and many worlds are interpretations of QM, not QM itself. -
Evaporation and condensation as a source of energy
swansont replied to BestChance's topic in Classical Physics
! Moderator Note Yes, and no. Same poster, but unlike before details are being provided in the thread. (unsure why a new account was needed; the old one has been deactivated) Let’s focus on the discussion and not these trivialities -
A Quantum Model having a Mechanism for Wavepacket Reduction (Revised)
swansont replied to SEKI's topic in Speculations
When are you going to present a model of it? When do we get testable predictions?