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ScienceNostalgia101

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  1. Bumping again because I was recently thinking about this Breaking Bad scene. The increasing magnetic field used to destroy the evidence is strong enough to throw metal objects at the wall and leave lights hanging from the ceiling at an angle. However, wouldn't this also make it strong enough to either brighten or dim the lights, due to the Lorentz forces on the electrons in the current carrying wires and whether they are parallel or perpendicular to the electrons' path? Or are there other factors? If not, is there any formula that can be used to estimate the magnetic field in Teslas from the apparent magnetic force on the objects flung at the wall or hanging from the ceiling (if one were to go by its acceleration or angle) and deduce how significant an effect this should have on the electrons in the wires powering the lights? Or does magnetic force not give one enough to go on in estimating magnetic field?
  2. Pardon the crude illustration, this is just what I have in mind to illustrate the idea. The blades, theoretically, would be made of whichever material would be as durable as possible both against corrosion and against fracturing, to pay for itself eventually in energy extracted. Within this proposal, there are two varieties. A: A submarine with the attached blades all immersed underwater until it is directly underneath the eye, such that it comes to surface at the eye and the surrounding counterclockwise winds are forced to exert a counterclockwise torque on the vessel by encountering these concave blades. B: A non-submarine vessel that encounters counterclockwise curl to the winds merely by approaching it. However, I am not sure how to determine whether it will encounter a prohibitively severe contrast between counterclockwise torque on one side of the vessel and clockwise torque on another. I am thinking of this in terms of Stokes' Theorem; the average curl within a region is proportional to a line integral around its exterior; and guessing the torque will be counterclockwise on the way toward the eye as much as within it. However, I have a feeling there's something I'm missing. Obviously, there would need to be helium-filled compartments either way (and/or hydrogen-generating electrolysis compartments readily available to both store generated energy and offset the heave?) if only to ensure this same torque doesn't also invert the vessel and in turn the direction of the blades' concavity. . . . For the more standard wind turbines, the main issue I hear about is maintenance costs. If one were to mass manufacture mirrors for solar!thermal, one could just plop them in the desert and let them melt salt. Wind turbines, on the other hand, would need to be cleaned of bird guts from time to time to function at adequate efficiency, would they not? However efficiently you could mass-manufacture wind turbines to line the ocean with them, that's still one tedious job of going out to sea and having to clean them all in person. A more concentrated form of wind energy, with more kilojoules per contraption, sounds like it'd save on maintenance.
  3. Bumping once again because of all the storms this hurricane season that formed at sea, and stayed at sea. The only way to intercept them would be to either line the entire ocean with turbines strong enough to harness the power of hurricanes (many of which would probably never see enough wind to pay for themselves), or to send a boat out to intercept them wherever they're forecasted to form. So I've come back to discuss the latter idea. What if someone designed a boat with turbines on all ends, designed to be rotated clockwise by the winds it encounters as it approaches the developing storm? Would there be any way to harness the associated energy?
  4. The people who were blaming it on the left. Especially the ones who were doing so directly like the creators of the above memes, of course, but also to a lesser extent the ones who were doing so indirectly by not refuting it. I know that word choice isn't the only possible word choice there, but I would think if a lot of conservatives were distancing themselves from it a few of them ought to have landed on that word choice by sheer random chance.
  5. Years ago, at least in the context of Internet culture, it used to be taken as a given that being against vaccines was a leftist thing. But lately, amidst the deluge of right-wing anti-vaxxers like Tucker Carlson and Lauren Boebert, the myth that the vaccine is bad for you has been challenged aplenty, while the even more unmistakably disproven myth that anti-vax narratives were inherently a left-wing thing has been virtually ignored. How come there are no repercussions for that sort of myth? How come the people responsible for it get to walk away from this as if they hadn't just been caught in a lie? Now I'm not saying this to try to come across as some kind of science-worshipper; those who are familiar with me here already know it's a little late for that even if I were; nor some dyed-in-the-wool leftist; I've been at odds with them on WHO funding and the like; but it just seems like an underappreciated opportunity to identify who was responsible for this myth, and know who not to believe on other matters. What say you, Science Forums?
  6. To be clear, the goal for my purposes is to have as many kJ of heat per litre of smoke; or alternatively, as few litres of smoke per kJ of heat; as possible.
  7. So when I use the outdoor fireplace, I often like to flip the logs upside down partway through their burning so that i have fresh unburned wood in direct contact with the flames at least twice as often. An uncle of mine once told me this actually does more harm than good to how well it burns, because the heat drives the moisture to the top of the log, and flipping it would cause the flames to be in contact with wetter wood instead of drier wood. I tried Googling this but I haven't found anything on this either way. To those of you better versed in chemistry does this make sense? Why or why not?
  8. But it's not called an "athletics & self-control" competition. It's called an "athletics" competition. Can't self-control be assessed in separate competitions, so as to give credit where credit is due on the otherwise athletically skilled ability of someone low on self-control? If people admire athletic ability so much that they pay to see it, why would they fail to give credit, where credit is due, wherever they see it?
  9. "Brand recognition" through the name of a foreign company? How did that not piss off the same tens of millions of voters who were xenophobic enough to vote Trump?
  10. Possibly because the real "education" they got was on their own minds through close proximity to several members of the opposite sex. You can teach them all the biology you want to (and in some private schools, parents still get to pay to separate them from the opposite sex) but experiencing it for itself tells you what to believe about what applies to you, and what doesn't, and in turn who to believe about biology based on advocates of any narrative get right about you, and what they get wrong about you; who has discredited themselves, and who has not. Anyway, I don't think we should stack the deck against gender stereotyping any more than in its favour. The "anti-discrimination" legislation may be well meaning, but that doesn't mean the effects of hormones and anatomy should be ignored. Distraction by your opponent could mean anything from looking behind yourself during a race to get a better look at her and tripping up, or subconsciously being unwilling to give it your all because you'd deep down rather look at her from behind than win.
  11. Is it at all affiliated with its Japanese counterpart, though? If not, why use the name?
  12. I'm kind of left wondering how many of her opponents attempted to get themselves tackled by her on purpose at the expense of winning the game...
  13. My bad on the mixup; the acronym NCAA reminded me of those used by actually profit-driven sports institutions such as the NFL. Still, one doesn't need to believe women "shouldn't" be playing sports so as not to be as inclined to actively funnel tax dollars toward their sports as to those of male athletes. The voters are notoriously stingy with tax dollars; they opposed funding abortion instead of letting the customer pay, even though low-income women need it most, but stopped short of banning it altogether. They opposed funding embryonic stem cell research, even though the alternative is to leave it in big pharma's hands, but stopped short of banning it altogether. Etc... the gulf between supporting something and supporting government funding thereof is even wider for conservatives and libertarians than it is for progressives; and I get the impression from your takes on politics that you fall primarily into the third category. I'd also be curious whether or not profit is still a factor even though it's a public service. It certainly is with the use of tourism revenue to justify taxpayer funding for the UK's fake monarchy. It's possible that the belief that men "need" sports more than women do is driven by the notion that, in addition to all the other motives people of either sex have for participating in sports, male athletes are motivated partly by the longing to impress women, whereas women have a wider variety of ways at their disposal of impressing men. Of course, I'm also somewhat skeptical of the assumption that guys who suck at sports aren't desirable to women, but I can still see the direct relevance of the genitals to the motives involved that doesn't require one to believe women would hurt themselves playing sports, much less feel justified in attempting to protect them from themselves.
  14. How the hell were politicians even allowed accepting campaign contributions from companies headquartered in foreign countries in the first place? I mean, by rights, they shouldn't be allowed accepting campaign contributions from domestic companies either, but foreign companies? How was that not stomped out if only by public pressure from corporate-power opponents from the left and globalization opponents from the right combined? EDIT: To be fair, I get that a lot of people have a soft spot for Japan in particular because anime's cuteness tugs at people's heartstrings, but that never stopped them from opposing the Japanese whale hunt, or criticizing the way Japan gets a pass for its own xenophobia, so I'm not sure why an exception would be carved for them on this one.
  15. Care to link to what in particular you're referring to? I'm not much into sports, I'm just going by the explanation that seems the most directly relevant to the... anatomical notions of male and female. The rest are just murkier hormonal reasons that could go either way and are not as widely accepted in other settings. Funding in particular is directed at expected return on investment, not skill. If customers would rather watch a mediocre man than the most skilled woman in the world, it's not some private investor's job to impose the latter on them.
  16. Forgot about this thread until recently. Biases wouldn't get "cancelled," just combined. If you'd mixed hydrochloric acid with sodium hydroxide you'd get saltwater, but that's not necessarily a good thing if pure water were what you were looking for. In theory, if every bias and its opposite were equally "cancelled" you'd be left with objectivity. Trouble is I doubt there's any objective metric of what constitutes the opposite direction of a bias, let alone its opposite magnitude. A better idea would be to have as much variance in biases possible and see how these biases affect the conclusions. Pure objectivity is an unrealistic ideal. Independent thought is a more believable one.
  17. And yet, even after that policy changed, sex-segregation of sports has not.
  18. Yes, yes I have. But even the notion that sports in particular are not necessarily women's forte in general wouldn't necessarily be enough to make or break whether or not someone opposed funding women's sports at all any more than, let's say, the notion that cooking isn't necessarily men's forte in general wouldn't necessarily make someone oppose funding home ec classes that male students are eligible to attend. If people disagreed with the former statement, they'd distance themselves from it more often. If they opposed male students' eligibility for home ec classes, they'd find a school board candidate who made opposition to it the central plank of their platform. In every other setting, the idea of protecting anyone from themselves would be unthinkable. If sports are still segregated, something else happened.
  19. I'm referring to Europe as a whole, compared to the USA as a whole. Obviously there will be a few European countries that are exceptions, just as there are a few U.S. states that are exceptions.
  20. Wasn't part of the point of sex-segregating sports to make sure it's primarily a test of athletic skill, rather than of skill at not being distracted by one's opponent? Is it possible the introduction of athletes who are still anatomically of the opposite sex might make their opponents subconsciously realize this, and in turn, be a confounding factor in the extent to which it's about athletic skills?
  21. East Asia in general; except for China; handled this pandemic well based on learning from what they got wrong with SARS. One decade's basket case is another decade's champion. Perhaps next time it'll be the US that comes out on top. Who knows? Each democracy has its flaws, but they're all leagues more trustworthy than the origin country that could've saved millions of lives if they cut this off at the source, but decided to prioritize saving face instead. We need an alliance specifically of democracies. If you want to find out what's going on in China, espionage is your only option anyway, they're never going to be transparent of their own accord without at least a complete replacement of everyone involved in the current government. (A replacement that probably isn't about to happen on its own in the near future, and probably couldn't be forced from outside without risking a large-scale conflict.)
  22. Ah. So there's a chance that the bacteria inhaled are harmless? So the characters could've gotten sick if the dog were an asymptomatic carrier to a dangerous pathogen, but it also makes sense that if the dog were healthy enough, the bacteria involved were harmless enough for the characters involved not to gave gotten sick? Am I to assume then that the issue of hydrogen sulfide/methane inhalation issue is a negligible one? (Again, I want to be as clear as possible that I do not intend to try this kind of "mixed joint" either way.)
  23. Best: Freedom of speech. I know Europe doesn't hold it as absolutely as the USA does, but it still treats it as an overall guideline. Europe wouldn't coerce retractions from doctors who warned colleagues about new pandemics like China would, or torture someone over "blasphemy" like Saudi Arabia would. By comparison, before Europe adopted American ideals like freedom of speech, it had its own cases of torture over blasphemy. Worst: The fanatical worship of the free market. America knows it could alleviate a lot of poverty if it embraced Scandinavia-esque unionization policies to protect the working class, and give people something to lose by resorting to welfare or turning to crime; and then they could afford to treat prisoners and welfare recipients better without risking outflow to both crime and the welfare rolls. They just refuse to, because as far as they're concerned, that strategy is somehow more morally reprehensible than causing massive poverty from stubborn refusal to embrace it.
  24. Co-ordination between countries =/= co-ordination among ALL countries. The greater the influence of countries not even accountable to their own citizens, the more tainted is the overall response. If SARS were a one-off, I could see the merit of continued faith in the W.H.O. But the similarities in failings (at best) between that pandemic out of China and this one suggest the whole thing needs to be replaced with something accountable to, and only influenced by, countries with some modicum of transparency. Cooperation between countries shouldn't require a middleman like the W.H.O. Individual countries make trade deals with other countries. They can make medical co-ordination deals as well.
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