Everything posted by swansont
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Neutrons attractive or repulsive?
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.
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Extreme male brain theory of autism
! Moderator Note If you aren’t going to contribute to an answer to the question, consider not posting in that thread. Strongly consider it.
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Neutrons attractive or repulsive?
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.
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Help with the diagram drawing around refraction
It asks you to draw what you see. What did you see?
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How to change everything
Broad topics tend to spawn multiple lines of discussion. We prefer one topic per thread.
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How to change everything
Still too broad. Behavior and government are not really interchangeable Please narrow your focus.
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Your favorite science popularizer?
James Burke. Connections just blew me away as a teen and The Day the Universe Changed as a young adult.
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Asteroid defense ideas
Beam of energy? Slowing particles with photons (the closest thing here) is inefficient; photon momentum is E/c. The force you can exert with photon absorption is P/c (P is power) so 300 Megawatts gets you a whopping 1N of force. Single atoms subject to visible light only change speed by a few mm to a few cm per second (depending on the mass) by scattering a photon.
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Asteroid defense ideas
Fallout isn’t the radiation from the explosion, it’s contamination - the radioactive material leftover or activated in the explosion i.e. the radioactive fission products and anything that becomes radioactive from absorbing neutrons. These things can be radioactive for years
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Asteroid defense ideas
The material from the explosion might eventually enter the atmosphere
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Trump account airs Reich video (split from Political Humor)
Some/most of which will go to pay his lawyers
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The physical cause of sound when bonds and materials fracture
Yeah, it’s not going to be a nice sine wave, so you’re going to get a bunch of Fourier components, and probably with multiple different principal frequencies
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Breathlessness Inquiry
! Moderator Note Responding to a request for credible sources with more conjecture isn’t really the direction we were hoping this was going to go. Even if this had been posted in Speculations it would be closed down for a lack of rigor, but you posted in a science section without making any attempt at presenting any science. We don’t have a WAG section. Stop posting WAGs. (Wild-Ass Guesses, in case you’re not familiar with the acronym)
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The country question
I don’t accept this as true. Any group might not have an inherent feeling for some of the issues of others, but governments do have the capability of solving problems for diverse constituents. They just need to study the problems and have empathy. Some lack the desire or ability to do so, but that’s not universal.
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Trump account airs Reich video (split from Political Humor)
Net or gross? Source?
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Breathlessness Inquiry
This is not helping convince me that you have a rigorous, scientific argument. Perhaps you should start with some credible sources, researching how anxiety can affect breathing.
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Breathlessness Inquiry
! Moderator Note What is your inquiry? I don’t see anything but some hand-waving and a tenuous connection between breathlessness and drowning. Nothing resembling rigor.
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How to change everything
“everything” is rather open-ended. Can you narrow this down?
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Speculation about the history of the universe
You’ve given no explanation of how one might find “time” in matter. This is just way too vague to be testable. Not enough to comply with the rules of speculations.
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Speculation about the history of the universe
! Moderator Note Does this “theory” make any testable predictions that might falsify it?
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The country question
! Moderator Note moved to politics
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small radio telescopes
Some early radio telescopes were built by amateurs, though they were very dedicated amateurs https://en.m.wikipedia.org/wiki/Grote_Reber (an astronomer friend at work made me aware of Grote Reber, and several of us agreed that the reber should be the unit of effort put into any hobby. Most of us would register millirebers)
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The physical cause of sound when bonds and materials fracture
I wonder how much of that is from the limits of human hearing. They might be very different above ~20 kHz, but we’d never know just by listening.
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How to test my ideas on the simplest cause of the accelerating expansion of the universe
You’d be better served by comparing to existing data, but you’d need to do some actual science.
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Civil war in USA (19th century)
Only if it leads one to a more refined model, which can then be tested, and given the time constant for civil wars that seems like it’s not going bear much fruit.