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Showing content with the highest reputation on 05/24/24 in all areas
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I'm no expert here, but feedback mechanisms in biology are so frequent that I think pointing to the presence/absence of a certain chemical as the cause of an illness (or of any other process for that matter) is probably not the way to go.2 points
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The fact that neutrons can be bound shows that they attract. You can make a neutron beam, but not sure how you’d get a coherent beam. A coherent beam might be more of a problem, since the neutrons would have basically the same speed, and thus have little KE in the beam’s frame. I suspect you’d form dineutrons which would very quickly decay to deuterium or a free proton snd neutron. Neutrons with different energies wouldn’t get trapped in each other’s potential well so easily.1 point
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They tend to increase the binding energy per nucleon of nuclei, which one would interpret as an attraction. Also, mirror nuclei (same number of nucleons by neutron and proton number switched) show that all the nucleons attract each other in the same way. The interaction has a limited range, though. You can’t form a stable nucleus with just neutrons, or mostly neutrons, though, because it’s energetically favorable for neutrons to decay into protons in those situations.1 point
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Here this will help. This paper discusses the application of nuclear devices vs asteroids https://ntrs.nasa.gov/api/citations/20205008370/downloads/Nuclear_Devices_for_Planetary_Defense_ASCEND_2020_FINAL_2020-10-02.pdf The idea is feasible but has its own realm of problems. The paper mentions a few of them including political issues.1 point
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My thoughts are that you seem to be an AI robot, adding no value to the forum with your bland and obvious contributions.1 point
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I'm talking about all the people who are going to try to advertise their own YT channel.1 point
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For me, it's about the time and effort others put into their responses to make them as clear and meaningful as possible for the rest of the folks in the discussion. You often seem to be listening (and responding) to only what you're thinking instead of what other people said. You're even quoting yourself now, like we aren't that important. You also often seem to put special emphasis on the vagueness of your responses, like a guru claiming, "Life is a river". I mostly ignore it because questioning it only brings more vagueness. I have to admit it offends me for two reasons. First, it seems intellectually lazy for a science discussion site (which is probably the exact opposite of the way you think of it), because you can never be wrong if you're vague enough. Second, you often talk about how much you've had to drink while posting, and I'm over 30 years sober, and enough of a snob about it to think we aren't getting to talk to the real you. I'm not looking for arbiters, truths, or wisdom nuggets. I'm here to talk to folks about life on Earth, their experiences, and to share knowledge. I like that knowledge wrapped in transparent cellophane with a simple twist tie, not covered in opaque brown paper, glue, and duct tape.1 point
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ok, wouldn't the explosion have to be quite close to the earth for that to matter? I mean worrying about radiation from a nuke in space would be a bit like worrying the ocean will be polluted by salt by adding a bucket of water from the dead sea to the ocean?1 point
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Why do I feel this has been copied and pasted ? If so then you need to include the reference source. Not that the OP has ever responded. I don't know if your still seeking answer to these excellent questions but this article describes local vs global symmetries as well as the connections specifically the gauge connections which you have above for \(A_\mu \) https://www.physics.rutgers.edu/grad/618/lects/localsym_2.pdf @KJW Your math savvy enough that the article should answer your questions but if not let me know and I should be able to help if not then this article will also help. Particularly since it includes how local, global, global internal and gauge symmetries are defined mathematically and includes the localized constraint.1 point
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Chinese and Russian controlled GenAI TikTok videos beamed directly into our brains via Neuralink chips. Hive mind driven by evil queens.1 point
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The World can get much much worse. But hopefully it has reached full bizarro with Trump selling Trump Bibles, ironically including the Constitution, and the bizarro pendulum only has paths toward normalcy no matter it's current direction...if not...what's next?1 point
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Generations of Americans were abused using the Christian Bible to justify the acts of morally bankrupt men. It's become a hallmark that lets them embrace their inner sinner and get away with both sanctimony and sexual abuse. When I think about most church leadership in this country, I picture a corrupt, hypocritical man exhorting everyone else to be better. So actually, I think the Bible is the perfect weapon for TFG to wield. He's a rapist, lots of rape justified by churches in the US, and there's always a way to support the patriarchy if you use the Bible. And this Bible has extra irony built right in by including a copy of the Constitution, knowing the purchaser will never make it to the part about separation of Church and State!1 point
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The idea that an electron could be simply a particle's conservation of charge is an interesting concept but doesn't fully capture the nature of the electron in the context of modern physics. Let’s break down the concepts involved: Electron as a Fundamental Particle: In the Standard Model of particle physics, an electron is considered a fundamental particle, meaning it is not composed of smaller particles. It has intrinsic properties such as mass, charge, and spin. The electron carries a negative elementary charge of approximately −1.602×10−19−1.602×10−19 coulombs. Conservation of Charge: The law of conservation of charge states that the total electric charge in an isolated system remains constant over time. This principle applies to all processes involving particles, such as chemical reactions and particle interactions, ensuring that the net charge before and after any interaction remains the same. Charge Carriers: In various physical processes, electrons act as charge carriers. For example, in electric circuits, the flow of electrons constitutes electric current. The electron's charge plays a crucial role in electromagnetic interactions, as described by quantum electrodynamics (QED). Electron and Conservation Laws: While the electron itself is not merely a manifestation of the conservation of charge, its existence and behavior are governed by this fundamental conservation law. In particle interactions, electrons are produced and annihilated in pairs with their antiparticles, positrons, to preserve charge neutrality. For instance, when an electron and a positron annihilate, the result is the production of photons, which are neutral particles, thus conserving the net charge. Quantum Field Theory: In quantum field theory, particles like electrons are excitations of underlying fields. The electron field is responsible for the presence of electrons and governs their interactions. Charge conservation in this framework is related to the invariance of the system under certain symmetries (Noether's theorem). In conclusion, while the electron is integral to the principle of charge conservation in physical processes, it is more than just a representation of this conservation law. It is a fundamental particle with distinct properties, whose behavior conforms to and exemplifies the conservation of charge. The existence of the electron allows for a wide range of physical phenomena and interactions that are consistent with the principles of modern physics.-1 points
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If he thinks that then he's obviously biased, I imagine... I've definately got a stalker... 🙄-1 points