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Everything posted by swansont
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Suggestion for teaching force components on ramps
swansont replied to ScienceNostalgia101's topic in Physics
How would that help you remember which angle is which? -
Bill McC has been suspended for soapboxing. So...much...soapboxing (the fact that many of the unsupported claims can’t be supported owing to being utterly wrong is not a loophole)
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So you made an irrelevant comment based on a lack of understanding of relativity, and still thinking it casts doubt on the theory. Got it. (for the record, the m in E=mc^2 is not the mass of the explosive itself. Feel free to ask questions if you want to diminish your ignorance) In science we use science definitions, not lay definitions.
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“There is a common belief that corporate directors have a legal duty to maximize corporate profits and “shareholder value” — even if this means skirting ethical rules, damaging the environment or harming employees.” Still a different argument, as these are extra conditions, but no need to continue; the legal obligation is a more vague duty to work in the best interest of the company, rather than personal interest, and do due diligence to make informed decisions.
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Relativity says it does. The temperature is related to the thermal energy content, and more thermal energy means more mass. This will be E/c^2, and energy content varies as kT and k is around 10^-23 J/K ( or ~10^-10 MeV/K)so this means the variation is exceedingly small. Mass variation with nuclear excitation has been measured; the energy scale is MeV, and you'd need a very warm environment (billions of degrees) to see the equivalent effect That's because of brittleness and other material properties, not any inertial issues. Changing temperature can change the elasticity of the collision.
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I stopped when I saw you use 1/2mv^2 in a relativistic problem. Beyond that, you claimed that constant g will not cause time dilation or bending of light, which is blatantly wrong, so what would be the point?
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While our fetish for weapons is part of this, the other issue is that non-white people end up getting killed at a significantly higher rate than white folks.
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She’s a “librul” and that’s enough. They make up the reasons after the fact to justify the hatred. It’s all part of the narrative.
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Any new theory is going to be consistent with what we already know to be how nature behaves. Yes, we could have a new paradigm, but that will only manifest at the existing edge cases and at scales we are only just reaching now, much like how QM didn’t eliminate classical mechanics above the atomic scale or thereabouts, under mundane conditions.
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! Moderator Note New members popping in to this thread with external links to commercial sites will be banned as spammers
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Not at all. It’s mathematically trivial (or at least easy), and physically impossible. But then, so is the Newton sphere you have invoked a couple of times. No, that’s not what I’m thinking. Time dilation in a gravitational field stems from not being in freefall, i.e. you are at some fixed r, like on the surface of a planet. Thus the gravitational potential at the bottom and top of a tower is different, and thus time runs at a different rate at those points (and all points in between) Velocity is not part of my argument. I never claimed potential was independent of g. I said potential still varies with r (or h) when g is constant, which is not the same thing. IOW in the Pound-Rebka experiment, the time dilation, which comes from the change in potential, is dominated by the change in height, and the change in g has a negligible effect, by many, many orders of magnitude. Thus, it is perfectly reasonable to treat this problem as having constant g.
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! Moderator Note Note that the OP has been banned as a sockpuppet of a previously banned member, but feel free to continue discussing. Just without their participation
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OneWorldOneNumber banned as a sockpuppet of CuriosOne
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“energy level” has a certain implication about quantized energy of a bound system. Casimir measures an effect from the lack of cavity states at certain wavelengths; i.e. the energy states are of the cavity, and the force (or pressure) is there because states are missing. Virtual particles are not constrained to behave the same was as real particles. A virtual photon can have any energy - a continuum. The price of having a large energy is a short existence, because of the uncertainty principle
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Hijack from Magnetically levitated wheels
swansont replied to TrumpWonTheElection's topic in Speculations
Counterpoint: no, it isn’t. The rules of the site require you to provide evidence and/or a model for this. A bald assertion is insufficient -
What energy levels? You haven’t shown that this an actual phenomenon.
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Right, but that’s essentially changing the programming after the situation has come up, whether that upgrade is built-in, or an external input. The first time, you have an accident, and perhaps a few times after, until you have enough information to deal with the set of circumstances. It won’t properly deal with it the first time.
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What would be the result of raising the pressure of tritium
swansont replied to Giglap's topic in Inorganic Chemistry
I would think it would approximately double. I expect the phosphor would deplete faster as well, so perhaps it’s a matter of matching that with the decay of the tritium. Having one last much longer than the other isn’t an improvement in length-of-life performance, which is often a consideration for batteries. Just being brighter with the same size is a niche improvement - more current or voltage. But you can get that with multiple batteries.