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1. Past hour
2. Whar are the benefits of wearing a medicine masks?

Simply put, yes. The biggest benefit is that it limits spread of droplets, so if you or someone else is infected unknowingly but wear a mask, it is much less likely that you infect someone. Whether it protects you depends on the type of the mask and how safely you handle it. For protection, keeping distance and washing hands seem to protect more reliably.
3. Whar are the benefits of wearing a medicine masks?

Hi guys! Just wanted to know your opinion about medicine masks. Do they actually prevet infection of covid19? Does it make any sense to wear them?
4. Barriers to equal opportunity in education

To add to that, and to repeat a question that I do not feel has been adequately answered: why is using one criterion (e.g. race) inherently bad, if it leads to a more favourable outcome (say better health or education), whereas another one (e.g. test scores) are inherently good, if they lead to disparity and benefitting the wealthy? In other words, what is the basis to assume that certain factors are inherently bad, if not the outcomes that they cause?
5. Today

7. How do u "set" x = 0 ???

Basically the root of 24.999999999 with 8 "nines" Is 4.999999999 With 9 "nines" As far as my T1-84 Plus CE A root is x^1/2 as 25^1/2 = 5 As with 24.999 and 25 And as with 24^1/1+2 = the root of 8 The 9 and 8 "Are To, Not The Same Number" Unless of coarse +24.99 and -24.99 cancell to 0...Then were back to square one, the x^1 thing going on here.
8. Keira Bell case

! Moderator Note Is this a medical topic or a legal (political) one? ! Moderator Note A link to the story would be appropriate
9. Keira Bell case

Hi Everyone In my Opinion, the verdict of the Keira Bell case is the result of a horribly confused situation. According to the BBC News, she was given both puberty blockers and male hormones. In my view, it was obviously very wrong to give her male hormones but I think it was entirely right to give her the puberty blockers because they are reversible. I think that this case has caused terrible unnecessary damage to the cause of gender dysphoric children who will probably now be forced to irreversibly develop in the way they do not want to develop. If I was the judge, I would have penalized the Tavistock Centre for giving Keira Bell the male hormones but I would have very clearly and emphatically stipulated that there should not be any restrictions placed on the use of puberty blockers. What does everyone think? Thank you very much. Kind regards Tim
10. How do u "set" x = 0 ???

I have no idea what this is supposed to mean 24.999 is not the same as 24.999...
11. Barriers to equal opportunity in education

So in what way is it wrong that I said "over the last few decades"? Are you not being a bit overly pedantic? I am aware that this is a science site, however this is also within the ethics section of that site. If I am limited to only discussing science, moral psychology aside, then you're effectively asking me to put a muzzle on certain meta-ethical modalities and methodologies. I am a cosmopolitan ethicist. That requires expansive use of logic in order to relay myself as clearly as I can. However I suffer from diarrhea of the mouth at times so probably don't do myself any favours when I at times get lazy and become less precise than I mean to be. Forgive me. So long as people don't throw the baby out with the bathwater when I inevitably make mistakes. We are all here voluntarily and there have even been times where I've commented in this thread while having a beer or two. It would have been disingenuous if my argument and details hadn't been more nuanced than that. I specifically meant zero costs for mostly Scottish applicants. Obviously there is always a cost to be paid by someone for resources and man hours. However there is something to be said with how some colleges spend their funding and manage it. But I suppose you can say that anywhere. Oh and yes, I attended Scottish schools, primary, secondary and college. As I said before I was a student representative in two of those schools. In the ideal world, both. At our stage of moral development? I'd settle for the former... For now. I agree that right now, world as it is, impossible. I don't know if I'd say equality of result is impossible or possible. It certainly seems that way. I am glad you talked about equity, meaning fairness. For all my talk of equality, I feel it lies in how we apply fairness. Why I say I don't know if it is impossible, is just accounting for different criteria to meet the required educational milestones across different fields and occupations. I'm also accounting for futures where advances in educational psychology, medicine or evolutionary changes to the human physiology might make a world of equal opportunity and lets say scaled consistency in result if not equality which is silly when talking about result. I'll admit to that no problem. It is an ethical conundrum to be sure, I wouldn't say it is a dilemma as we aren't being forced to choose between two options. Ultimately the biggest issue with ethics, is that scientific experiments in that field are costly to carry out. Law is the closest we have to something which can present as experiments in ethics. Sometimes a government will decide to test out UBI or free housing but it takes time and money to do that. Moral psychology and neuropsychology are potentially on the verges of breakthroughs, if they can sort out the reproducibility problem and funding/priority issues.
12. How do u "set" x = 0 ???

No, i meant 2 things, ""a derivitive"" ""needs 2 points"" and I meant that if a limit is 5, then approaching it "getting close to it" can only be a maximum value of 4.99999, i gave the backwards example...Here is a table.. Also, there needs to be a "span" inbetween say 0.001 for a total of 5,000 points "only" not an infinite amount that's crazy. 24.999 is "not the same" as 25 I thought "all limits" involved 4 points.. Maybe Derivitves, Difference Quotient or delta h can get my point across here.. F(x) = F(x-dx)^2 - F(x)^2/ delta h Becuase y2-y1/x2-x1 is linear is 4 points.. I also just wanted to note: To say x is to imply it has a base of +1 ie x^1 it's simple things like this that cause "much" confusion..
13. Barriers to equal opportunity in education

It is OK because it identifies those who are impacted. It makes no sense to say blacks were hurt but we cannot help them because they are black and therefore we cannot identify them. If only the black people in my neighborhood were exposed to a disease, do I also have to treat all of the white people just so that I'm not sorting according to race? If we applied your logic to tornados the insurance companies would not have to pay anyone with a claim because that would require us to sort based on the criterion of 'damage'. It is self evident that the criteria you use is the one that identifies who is impacted, whether that is damaged homes or race. You said previously that is was okay if it was used for good (see below). Now you are saying it is not okay. Did I miss something?
14. Can Trump Pardon himself?

The Trump team is very actively discussing how best Trump can preemptively pardon himself, his family, and his allies. https://abcnews.go.com/Politics/white-house-vetting-pardon-requests-push-trump-preemptively/story?id=74482289&fbclid=IwAR3wpqQ6SgmRV1YNq9xIFWhbI8BMgQNR8kEit0pxyAjLrY8CGmHbITtI6XM Meanwhile, Trump has raised \$170M through nonstop donation requests falsely claiming the election was stolen and money was needed for his election defense fund. It’s money he is using to pay debts and for funding activities after he leaves office
15. problem in proof for magnetic vec pot is 0

I'm not 100 % sure of what's bothering you, but it's useful to distinguish in these integrals the field point $$x$$ and the source point $$x'$$. Now, the sources $$\boldsymbol{J}$$ do not extend to spatial infinity. Nor do the fields $$\boldsymbol{A}$$ (at the field points: the points at which the field is calculated, $$x$$ ). So, $\int\frac{\partial}{\partial x_{i}}\left[f\left(x\right)g\left(x-x'\right)\right]=\left.fg\right|_{\textrm{boundary}}\rightarrow0$ The boundary is spatial infinity. I hope that helps.
16. Yesterday
17. Barriers to equal opportunity in education

Education structures in Scotland have never been the same as in England. Holyrood was established on 12 May 1999. So it has been barely two decades. It is all too easy to expand and generalise to support a view, but this is Science site and we are supposed to discuss the subject in a scientific manner, not an expansive one. I am not clear if you are saying you attended school in Scotland, but surely you would know that it is disingenuous to suggest that degrees of any sort incur zero cost in Scotland. Some folks (mostly Scots) have their fees paid. This also used to be the case in England until greedy bursers and governments made them amongst the most expensive in the world. FYI, the structures in France, Germany, Belgium and the Netherlands, are hugely different, both from each other and from those in the UK. Edit I think you are asking the wrong question here. Consider this Which do you prefer equality of opportunity or equality of result ? You cannot have both, but you can make some adjustment to the balance between them. How to achieve a fair balance is the ethical dimemma.
18. Alternative Interpretation (split from What is Space made of?)

QFT. Three cheers for accumulated human knowledge!

20. Barriers to equal opportunity in education

No apology necessary; I'm fairly thick-skinned. I just found it galling that you would complain about something which you also do. Do you mean like this ... Just what exactly do you think 'discriminate' means ? dis·crim·i·nate /dəˈskriməˌnāt/ verb 1. recognize a distinction; differentiate. Discrimination is simply the act of sorting according to some criterion. I think that we can all agree that discriminating, or sorting, according to the criterion of 'race' is wrong as it has led to oppression, slavery and genocide. Even worse, there are no actual 'races', but the one; it is essentially sorting according to distinguishing features, that has caused all these problems. Yet you guys feel it is still OK, because you're using it for 'good'. edit I miss the Physics forum where words are strictly defined, and meanings are not colored by the subjective life experiences of the user

22. Barriers to equal opportunity in education

Also, I'm sorry I upset you MigL. I had just woken up and had not had my coffee yet. I could have been far more diplomatic.
23. Barriers to equal opportunity in education

Reading through this thread it seems to me to be a discussion between North Americans about the system in the US. I can't see the relevence of this comment about Scotland, which is so short as to be misleading about Scottish education. What exactly did you mean please ?

25. problem in proof for magnetic vec pot is 0

.The variable of integration is volume in the equation. Not current. dV, not dJ. You are integrating the current over the volume. “What other components could there be?” doesn’t make any sense. There can’t be any “other components”. The equation clearly says dV. There’s no wiggle room.
26. problem in proof for magnetic vec pot is 0

What other components could there be?
27. New theory of the speed of light

Or it may be God or pink fairies. Throwing out random ideas is weak.
28. Barriers to equal opportunity in education

The problem is that all is NOT equal, and you are fighting against the effort that is devised to make it equal I didn't call you racist. You are the one who said liberals have ruined that word by throwing it about so easily. I'm pointing out why liberals do so. If one fights against racism, then that person is (probably) not racist. If you are neutral in the fight then who knows what you are. But when you fight the effort to repair the effects of racism, one has to expect that people are going to question their motives. You are calling the effort to repair the effects of racism racist. You don't see that as reminiscent of Trump? Yes, that is also out of Trump's playbook. He doesn't want to antagonize white supremacists because that will only make them more angry at blacks. I don't see the point of not fighting for the oppressed just because it might piss off the oppressors. Then it is a good thing no one has said you are suggesting racism does not exist. What I am saying is that you are fighting the effort fix the problems caused by racism with your reasoning being that the effort itself is racist and might piss off the racists.
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