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Showing content with the highest reputation on 07/14/20 in all areas

  1. Where is the graviton expected to be located in the nucleus? I know that up and down quarks have a spin of ½, and the graviton's should be 2. Could it be inside the quarks? Or could it be an undetectable sphere around the nucleus as a whole?
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  2. I think you should divorce yourself from the idea that a disease goes a certain course. A disease is a harmful condition that is caused by some sort of agent. So you can infected by an agent e.g. bacterium or virus but depending on what happens, the disease may not manifest itself in you. How do we classify a disease? By monitoring symptoms. So if someone is infected (i.e. tested positive for presence of an infectious agent) but shows no symptoms, the person is asymptomatic or potentially pre-symptomatic. The latter just means that a person is positive for the agent, negative for symptoms at time of testing but may develop symptoms later (i.e. we only know in retrospect whether the person was truly asymptomatic or pre-symptomatic). However, obviously symptoms alone won't allow you to classify the infectious agent you have, as many may share similar symptoms. So if you have a cough and other symptoms that are associated with COVID-19, you should be tested. But there is no way to be sure what you have otherwise. In addition, as others have mentioned, being sick does not automatically mean immunity. Regarding face masks, the reason originally predominantly sick people were asked to wear masks was because masks reduce droplet generation and makes it less likely that others get sick. However, there is increasing evidence that asymptomatic or pre-symptomatic folks may also spread the disease at which point it becomes prudent to wear a mask even if you do not have symptoms. A big issue in the US is that they have politicized health. The severity of COVID-19 is now not judged based on data (as in most other countries) but based on party lines, which is just utterly ridiculous. In order to get info you will need to listen to medical experts. I will say that knowledge is changing for another simple reason. Since the outbreak there has been an unprecedented boost in research so we learn things at a very fast pace, which also means that some things we assumed to be true earlier may be changed rather quickly. Normally a consensus forms slowly over years of research. Now it is happening in weeks or even days and it is obvious that not all assumptions will be proven true.
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  3. I am only responding to the title (nothing else,because I have not read any else comments under this thread) while it is interesting ..it also seems rational. because imo everyone believes that they deserve it: though, it is interesting because here in turkey ,anymore, one teacher's salary is not higer than even one security staff who has high school degree. all teachers here have to hold at least BSc or BE degree. what is more according to forthcoming or existing procedures , this will not be enough.
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  4. Not really. I provided supporting data to back up my original point. I'm not talking about racists. I'm referring to people of color, women, and young people who live in these communities. They are the ones calling for more effective police. They are the ones who feel unsafe. Is your nit-picking game of semantics that much better? And what do you know, those few criminals, when left unchecked, dominate and control those around them.
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  5. I understand you have had a rough time and are understandably confused/frustrated/distraught. I don't know where you live, so I don't know which "they" you are referring to. My observation from the UK is that there has been very little lying**, but a lot of decisions revealed as poor as we learnt more about the virus, and a handful of decisions that were just plain incompetent, but not lies. Recall the saying, which I paraphrase, Never attribute to conspiracy what can be accounted for by incompetence. **I've been especially impressed by the First Ministers of the devolved administrations of Scotland and Wales; Boris Johnson, not so much. Bluster, bombast and buffonery can only take you so far.
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  6. Totally concur with @Janus & @Endy0816. I'd like to know who said that too, @Strange. (+1)3 Let me offer you a complementary picture of why everything running away from one point doesn't work. If everything in the universe were running away from one point, we would look at the night sky and see something very special at that point. That would be the point we're running away from. Instead, what we see is a series of spherical layers older and older in every direction the farther away from us we look. Until we hit the very feeble, very dilute image of a primeval plasma state of the universe (this is called the surface of last scattering). A picture of the universe when it was opaque to radiation, because all the particles were ionized (plasma) so it didn't let radiation through. That's a picture of a pretty early universe. And it appears more or less the same in every direction. So, where is the original point? I hope that helps.
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  7. "What value it becomes safe"? Please clarify your question / statement. ---------- Here is a poll done in 2014 about how safe certain groups feel. Roughly a third of Americans feel unsafe walking in their own communities. Notably, 48% of young people (18 - 29) say there is an area within a mile of their residence that they feel unsafe walking at night. The study's conclusion: "While the percentage of Americans saying they do not feel safe walking alone within a mile of their home at night has remained steady over the past decade, there has been a considerable shift in Americans' views on this question over the past 30 years. While falling crime rates have not necessarily affected Americans' perceptions of crime on a national level, they have been felt in neighborhoods and communities across the country. Nonetheless, women are among the groups that feel the least safe, suggesting the benefits of falling crime rates have not been evenly felt by all. Other groups, such as the young and lower-income individuals, are also more likely to worry about their own safety." Source: https://news.gallup.com/poll/179558/not-feel-safe-walking-night-near-home.aspx
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  8. Very good question IMO. +1. Not really. The key to this is what @Mordred suggested when he mentioned the key words "FLRW": Then he went into a very interesting argument that really this co-moving time extracted from FRWL model (exact solution of GR) is actually an average and it would be affected by corrections due to fluctuations in density (+1). That's my understanding of what he said, at least. So there would be local underestimations or overestimations of the Hubble parameter (see below.) <question for @Mordred> Would an underdensity lead to an overestimation of H (and thus an underestimation of the age of the universe), or the other way around? I'm feeling a little confused right now (I think it depends on the global balance of omegas for DE, DM,...). </question for @Mordred> If the cosmological principle were exact, the FRWL solution would be exactly how the universe evolves, and the age of the universe would be (proportional to) the inverse Hubble expansion parameter. \[\frac{a}{\dot{a}}=H^{-1}\] Where \[\dot{a}\] represents the time change rate of the expansion parameter a, which in turn represents "how far away from each other typical galaxies are", and is dimensionless. The Hubble parameter is the proportionality factor that tells us how fast a galaxy is moving away from us as a linear (directly proportional) function of its separation from us: \[\dot{a}=Ha\] Now, don't ask me why (ask @Mordred perhaps), but Einstein's GR allows you to re-scale time and expansion parameter at the same time for the whole timeline of cosmic events, if you want, but it doesn't allow you to mix both in this re-scaling. So all you would be allowed to do is a re-scaling of both for the universe as a whole. Something like this: \[dt'=\tau\left(t\right)dt\] \[da'=\alpha\left(a\right)da\] Where the primes indicate new variables and the d's indicate small increments. So all observers would agree on a universal time that would be possible to re-define by re-scalings. Mind you, this is not your familiar wristwatch time. It's to do with the expansion rate of the universe. As others have pointed out, there are many kinds of time you can define, depending on what standard or physical process you use to provide you with the clock, so to speak. When defining such standard clocks, you generally find observer-dependence. But as long as the FRWL metric is valid, it allows you to define a standard clock for all observers in the universe that are co-moving with the galaxies in the common expansion. You may re-scale such clocks, but all these galactic observers would essentially agree on it, because it's just the ratio of a and its time rate of change. And t=0 goes to t=0 under any re-scaling. The origin of time, within the model, is absolute. The timeline scale is not. The deep underlying reason is that there is a singularity at the origin. I hope that helps and I haven't made any gross mistakes.
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  9. Can you provide a more specific reference than “some people”? Pretty much all matter (in the form of hydrogen and some helium) was formed early in the Big Bang. That is the “one source” and why matter is evenly distributed throughout the universe
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  10. The space we and everything else is occupying today is where that 'source' was. Everything was at a single point(roughly speaking) before that became less dense.
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  11. Gravitons would be quanta of gravitational radiation( gravitational waves). You would not "find them" anywhere in the nucleus. They would be produced under the type of conditions that generate gravitational waves, in the same way that photons are produced by the generation of electromagnetic radiation ( radio waves, light, etc)
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  12. Ken is gone now. He couldn't stay civil in the face of so many requests for clarity, and we were too focused on understanding what he was talking about to stop asking questions.
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  13. The Big bang was not an explosion in space and time, it was an explosion of space and time. It happened everywhere in the universe, as it involved the entirety of all space.
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  14. God's word is "asshole"?!?!
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  15. I did not get that impression from @dimreepr's posts. He seemed to be holding the view, which I share, that those charged with upholding the law must be scrupulous in following it meticulously themselves. This must not only be a matter of following the letter of the law, but the spirit of the law also. Not only should there be no bending of the rules, but every effort should be made to be demonstrably fair and equitable in discharge of their duties. I am not sure how you have misread dimreepr's stance (I hope I have not), but the result is that you have constructed a strawman.
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  16. ! Moderator Note If it's a study, can you post the link and abstract here, so the members can decide if this is a subject worth getting involved in? If it's just an article, can you provide an overview of the arguments, and perhaps give us your perspective? All of this will facilitate a good discussion of your topic.
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  17. Anarchy has been tried. It doesn't work.
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  18. The 'bowling ball on a rubber sheet' is a two dimensional reduction of a 4 dimensional configuration. It has multiple problems, one of which is that you can observe it from an embedding third dimension. Space-time has no embedding dimension; both the bowling ball and you, the observer, would need to be intrinsic to the rubber sheet ( i.e. also two dimensional ). A three dimensional representation would already get rid of some problems, but not all. Picture a three dimensional grid, where x, y, and z axis divide up the space into cubic elements. A mass placed in this space would curve the x, y, and z lines such that the elements are moreskewed, and smaller, as you get closer to the mass. That is 'space' curvature, and one aspect of gravity, but already much harder to visualize than the two dimensional example of the bowling ball/rubber sheet. Actual gravity is four dimensional 'curvature' of space-time, and I can't help you visualize that as it is impossible. Some problems are just not suited to visualization, but understanding even just the basics of the math goes a long way to clarifying things.
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  19. Right, but the whole crux of what I have been arguing is that the police's predisposition towards violence results from a lack of training, defaulting instead to a fear based response to violence which is a misplaced attempt to control chaotic situations. Martial arts training would significantly offset / negate this fear based response, thus greatly reducing the unnecessary violence carried out by officers. My experience and understanding of martial arts culture. You will be hard pressed to find a martial arts school that actively encourages its students to go out and commit acts of violence. In fact, the opposite it true. As iNow can probably attest, the core principles of martial arts are having a high respect for everyone around you, avoiding violence whenever possible; instead opting for a peaceful solution, and reaching your highest physical and mental potential. Martial arts isn't about glorifying violence. On the contrary, it's about understanding the true consequences of violent actions and working to effectively manage the sometimes inevitable chaos that confronts us with an intelligent and disciplined response.
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  20. Circular logic. Most people would agree that if someone is already predisposed to violence, then having more tools to inflict it would amplify their instincts. However, the premise that those who know martial arts are already more likely to use violence is completely unsubstantiated. I would say the opposite is true. A person would be less likely to use violence if he or she knows martial arts.
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  21. It depends what crime we're talking about. The police are required to enforce the law, not walk away from fights. What offenses should be decriminalized is up for debate (and I believe there are many), but if a suspect is being violent or aggressive towards other people, then the police have a responsibility to subdue and detain him / her. Example. Let's say I call the police on my neighbor who is being drunk and disorderly. My neighbor is smashing trash cans in the street and has broken several car windows with a baseball bat. When the police arrive my neighbor attempts to hit the officer with the bat. In that situation I certainly wouldn't want the officers to walk away from the fight. My neighbor, emboldened by the retreating police, might smash my car windows next, enter my home or otherwise damage my property. The police have a responsibility to protect me and my family's safety even if they have to use force against my drunken neighbor. There is no evidence of this being the case.
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  22. I suspect your problem is with my use of the quantity “one”... lol
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  23. First time interacting with dimreepr, eh?
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  24. Hi Ahmet, just some thoughts... Very (extremely) few people achieve to live from music. Even less as a composer. You better make software: easier, well paid, many jobs. Violin professors have hundreds of students in their career, one is more talented and trains seriously, and becomes her or himself a professor. Sometimes, this exceptional student is even more exceptional and earns his living by playing music rather than teaching it. These are the orchestra musicians. Soloists are even much rarer, composers too. How many composers does a concert need? Presently, Covid-19 is an absolute disaster for all performing arts. No concerts, or concerts without public, meaning less incomes for the orchestra. Most musicians are not on the permanent payroll, so they get no engagement at all. Playing on the street is presently no-no in many countries. Youtube brings zilch to standard musicians. Romania is a fantastic place to hear music. But to play it? People from Romania and Moldova go to Germany and Austria to live from music. What kind of music? A few people manage to live from folkloric / cigani / klezmer / etc music. That could work better than classical music. It's often not a first choice. Illenyi Katica, Rusanda Panfili... are all excellent classical musicians who jumped into folkloric music to make a living. Or do you mean songs for the TV?
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  25. I had 3 different cell mates over the course of 6 years that killed their wives with hammers. I want hammer control! Thanks to drunk drivers who are obviously not to blame, vehicles kill thousands every year. Don't be complacent in these countless deaths, turn over your deadly vehicles IMMEDIATELY!
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  26. In the context of the thread, the risk is equivalent; it's the aproach to the risk that varied.
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  27. NO They should get out of our business and find another line of work I have NEVER needed a hired merc I'd rather die than let them capture me again. Deal with your own problems losers let God defend you and if He doesn't you're just a chicken. Anarchy
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  28. This is just hired guns, completely throws off natural selection. And it doesn't work either. It's not polite to judge, imagine what they do on NCIS SPU, pure judgement. Is Jury is no more fit to judge than anyone else, God set up misery and the human response. Look through one eyeball, and you can't see past your nose, look through two and you can see right through it. If the electrons in our synapses are entangled than our memory is not local, and our senses and thoughts and feelings are one eyeball. At some point you need to consider the fact that police are really not able to do anything about crime. They do not prevent it. They just put a woman or man with their own gender and provide food and shelter. Personally I'm for mixing genders in a safe place where they can do what any person should be doing. I think the combination of religion and law is entirely homosexual in nature and otherwise pointless.
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  29. That appears to be a concession that: you have moved the goalposts such an action lacks integrity Your arguments would carry more conviction if you could turn down the burning outrage a little. Merely a suggestion.
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  30. Negative invisibility In all my study of physics it is apparent to me that the negative value of the same variable represents the opposite direction or opposite effect. All the physics equations that apply the negative variables result in the opposite effect. Every positive physics variables have negative versions of variables that behave in the opposite direction. Even in optics where once it was believed that an object must remain visible because the diffraction rate is positive can never be made invisible. It turns out that when the diffraction rate was made negative the opposite effect took place, the object became invisible. That was an amazing discovery that proves why for every positive physics concept due to positive variables; there exist an opposite effect due to the negative variables. The flow of time may flow forward but there are also negative variables to time which represents the reverse flow of time. Reverse flow of time is not science fiction, it happens all the time in a black hole. The universe like the black hole will eventually experience a backwards flow of time when it contracts perhaps a hundred trillion years after the universe is dead. The purpose of this reverse flow of time is to end the progression of time frames after which an opposite reaction will take effect on the forward rebound. For every positive action, there is an opposite and equal negative reaction. Action positive is balanced by reaction negative, a key concept of physics and mathematics. The yin yang concept is famous for the idea of opposite positive negative properties. This yin yang concept reflects the conversion of yang positive to yin negative. This is where the scientific explanation of a God like entity enforces the opposite reaction on what I call the last stage of evolution of animals in the image of God, human beings. All actions results in mathematical functions, every function with variables revert to negative variable functions as an opposite reaction. There is no way to avoid it. So in terms of where one ends up at the end of time, it follows the math of action resulting in opposite reaction. It can be compared to people phasered to another location while retaining all their memories as the same identical person.
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