Why Masks Work BETTER Than You'd Think
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- Опубликовано: 28 сен 2024
- Thanks to the Heising-Simons foundation for their support: www.hsfoundati... (their COVID-19 grants: www.hsfoundati... )
Check out aatishb.com/ma... to explore and for references.
This video is about how masks (whether surgical, or N95, or cloth) are counterintuitive and actually work much better epidemiologically than one might expect. Masks do double-duty, and the fraction of interactions with masks is much higher than the fraction of people wearing masks, so partially adopted, partially effective masks are able to reduce the basic reproduction number surprisingly well.
REFERENCES:
Aatish’s detailed writeup on github: github.com/aat...
Amid the Coronavirus Crisis, a Regimen for Re-entry: www.newyorker....
Face Masks Against COVID-19: An Evidence Review www.preprints....
Mask FAQ Test Results: www.maskfaq.co...
The Effect of Mask Use on the Spread of Influenza During a Pandemic: onlinelibrary....
Calibrated Intervention and Containment of the COVID-19 Pandemic: arxiv.org/ftp/...
Cloth Mask Breathability and Filtration Efficiency Technical Report: static1.square...
What kind of mask should I be wearing to protect against COVID-19? built-envi.com/...
Masks for all? The science says yes. www.fast.ai/20...
The Real Reason to Wear a Mask: / the-real-reason-to-wea...
Support MinutePhysics on Patreon! / minutephysics
Link to Patreon Supporters: www.minutephysi...
MinutePhysics is on twitter - @minutephysics
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I'm in the US, and I consistently see people "wearing" masks. They wear them below their nose or around their chin. Sometimes they wear the mask UNTIL they start talking, and take it off to talk (which is likely the most important time to have a mask on outside of sneezing).
It's honestly hard to hold out hope for humanity when guidelines this simple are so difficult for people to understand and follow.
To understand really ?
@Sean Davis Shut up pro-plaguer.
Spain made masks mandatory pretty much everywhere, yet new cases are skyrocketing. Sweden does next to nothing to stop pandemic, and new cases are slowly droping
I have a light beard and extend my mask slightly below my chin if possible. I was about to argue with the "around the chin" part until it sunk in with me exactly what you meant. The level of stupidity never ceases to amaze me.
It's probably harder to understand that all these rules fucked up your country more than the virus ever would have, in my opinion.
Diseases are part of life, and so is death.
I'm not saying everyone should die from this and stop caring about it, but reinforcing laws about personal behaviour is useless, you just inform and educate the public (something the US had a really hard time doing in the past decades, but I'm from Italy so who am I to judge) and then public supposedly will encorporate those guidelines into their daily life.
But this was done in such an aggressive way that people just got scared and now they do whatever they want or can just to feel like they still have control.
I get it, it was an emergency eccetera, but it's been what 7 months? If the US had to go to war I assure you it would have been done in a much more efficient way and much faster. But when it comes to the safety of the citizens it fuckes up. Such as other countries
If everyone were gamers, the transmissions would drop by 100%.
If it were possible. If every living person could isolate themselves for about ten days (I don't know what the maximum incubation and infectious period is) - we might be able to wipe Covid19 out. It doesn't sound like much of a sacrifice, does it, compared to the sacrifice we're making now. It's just not possible, though. Some of us have medical needs that mean we can't isolate ourselves for even short periods.
@@batintheattic7293 the only problem here is that there will be always someone not respecting it, that is the only reason why it would never work, unfortunately. And you would need more days because it is 14 days + the days the person is sick. So I guess you would need about up to a month to be sure. Not so realisable anymore, is it? And for the medical need, that wouldn't be a problem because someone could just send them to you days before the quarantine. But it is a nice thought indeed, just some will always stay ignorant and stupid...
Or if everyone was an introvert
well, yeah, but gamers vote for trump and bolsonaro so they're a whole disease themselves
If we were video gamers, we would reload a save file from January.
This pandemic has done nothing but solidify my dislike of other people.
Same
unfortunately, you are right :(
I think it has pointed out how easily people believe misinformation and how they usually fight the government (because they always think the government is out to control everyone). Governments don't really help themselves out either. I just love how one simple virus can cause so much economical damage to the world. it really shows how poorly stable our world is.
same
It's shown us that science affects everyone. And that politicizing issues ruins any chance of ever solving them.
Gods I wish "Don't make other people sick" wasn't a political issue.
Politics is, & always has been, a one-sided fight for human rights while the rich & powerful try to convince everyone that people deserve to die with surprising effectiveness. Somehow, there are quite a few people who are against the idea of people living, but I suppose that's just politics.
@@aformofmatter8913 Or people being stupid assholes... Or both...
Too much things were turned into political issues. Like climate change, abortion rights, racism, weapon and recreational drug legalization. That kills me every time
Not making other people sick isn't the issue here. It's about politics making decisions and claims that aren't scientifically sound but claiming them to be. It's a whole lot more complicated then most people understand. It's not about simply wearing or not wearing a mask.
If we just talk about masks, then my first question regarding the topic is the following. What is important for/when using/wearing masks?
Don't tell other people what to wear on their face.
Don't tell other people how to take care of their health.
That goes for the government too - they don't have the right to play doctor.
If they have EVIDENCE someone is INFECTIOUS, they quarantine them. Otherwise, leave them alone.
I love how the infection looks like a vomit cannon
Dang it ! That made me laugh out loud
Or a big sneeze.
It's like a super fireball from X-Men vs. Street Fighter.
That sounds like a Mythbusters build!
Vomita canhão?
People still negate this all by pulling their nose out of their mask.
While I agree with that, wearing a mask with your shnose sticking out should still be more effective than not wearing one at all, due to still blocking your cough (atleast its something)
@@Legalisenuclearbombs Even when using a mask, we should still cover while coughing, e.g in your armpit.
@@Legalisenuclearbombs air also comes out of your nose, not just your mouth.
@@aliensarefromspace it doesn't travel even nearly as far as cough/sneeze would
But it doesn’t fog my glasses, yay
So many 'sks' sounds my cat came around and cuddled my phone
lmao did it actually
@Jang-geum Seo No, I'm Patrick
@@dylanm5917 Your cat's name is 'lmao'?
LMAO 🤣
[Name Is Unavailable] lmao no
@@dylanm5917 so does your first reply,
"lmao did it actually",
mean to say: "the act of calling my cat was actually done by me laughing my ass off"?
*Everytime he says "mask(s)" the video gets faster*
For me it gets slower, as I have an energy drink each time.
@@nocturnaljoe9543 I don't understand the Logic, help me out here
@@years8703 I am afraid, I cannot help you with this. Nobody can.
@@nocturnaljoe9543 Wait, I think I understand now, 'cause since you'd be drinking an energy drink, your brain would be taking in more information, thus time would move slower, please correct me if I'm wrong
@@years8703 No need to correct you. You understood well.
meanwhile some kids in polish schools are getting detentions for wearing a mask during lessons, nice
*sigh*
meanwhile in Greece people are rioting because the government made it obligatory to wear masks at school
yeah but we can always just have them all climb a really tall tree and wave. Problem solved.
MirceaKitsune, what do you mean by “covidist”?
According to the US, mask wearing is “violation of human rights” what a bunch of genius
I was told by my employer that government guidance says we're not allowed to wear masks at work. I work in a school. In the UK. My employer is actually lying about this as I've read the guidance myself. ugh.
That sounds like a lawsuit waiting to happen
If your employer is a school administrator, you should record them saying that or save any correspondence they send stating that. Send that shit to whoever can discipline them for it.
I guess they read somewhere that primary school children don't need to wear a mask
My school have said they don't want us wearing masks and I would need to prove I had a medical reason.
I ignored the SLT and they frown, but don't have the guts to do more than intimidate.
Ultimately, the fallout for reprimanding a science teacher for following teir CPD and ensuring I am teaching current quality SMSC would be too bitter for them.
Plus parents wouldn't like the cover they'd find after I walk out.
However I'm fortunate to have good finances and be in a shortage field.
I can explain the mark on my reference in my cover letter.
@@KSPAtlas this is the case for the school where I work
The children are aged 10 maximum so they aren't required to wear masks, but all adult or person above the age of ten are required to wear a mask.
I honestly think that although the youngest children can't be expected to wear one or respect the measures as well as the older ones
But at 8/10 you're clearly able to understand and behave appropriately
4:28 "arithmetically satisfying" You got me I wear facial mask from now on
“The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.”
― Isaac Asimov
“There is a cult of ignorance in the United States, and there has always been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge.”
Thats why USA has to date 6.3m infected and the death-toll of 60x 9/11.
Society is still stuck on the "science" that was released 6 months ago, completely ignoring any new research, studies or evidence showing covid is less deadly than the Flu..
Permaculture Ecuador
Are you joking or actually being serious?
@@whathell6t you haven't been able to find the new research and studies from Stanford / Yale on covid?
Still getting all your info from the CDC/WHO?
@@whathell6t ruclips.net/video/FDDkY9z908M/видео.html
Wife: "What are you laughing at?!"
Husband: "Nothing!"
Husband: [Internally] .... *Maskamathics* bahahaha!!
Maskamasksments
He is a Maskmatition now.
💚🤓
Um... You clearly didn't hear him say: Magic (of) Mask Math... Magicmaskamathics.
@Harry Dingling what
This video has an important omission: the virus is here to stay. It will not disappear. So all we are doing with masks and reduced transmission is slowing the RATE of transmission, not the eventual EXTENT of transmission. Until we reach about 70-80% herd immunity the virus will continue to spread. There is a good reason to slow the rate of transmission, and that is to prevent hospital overload. But we are far far below any risk of hospital overload in all but a few counties.
Meanwhile the collateral damage of economic shutdown will cause immense harm for generations, with trillions in debt payments that will only come from young taxpayers and government confiscation of the wealth of retirees. Merely slowing the spread rate is not a sufficient excuse for the immense economic harm.
What amazes me is that "My experiment shows mask equals bad" videos have many thousand views with very high like ratios.
While the clearly more scientific videos like this on also have a really good like ratio.
Those filter bubbles must be insane.
yep, filter bubbles work best when both sides use them, which ironically, proves the mask math works!
this video is far from scientific. It ignores all the variables, supplants them with junk data, and then attempts to draw conclusions based on that junk data. It's almost anti-scientific. It's borderline political propaganda, if I am being completely honest.
Zenn Exile are you just saying this to appear smarter and justify yourself not wearing a mask or just pure bollocks.
@@ZennExile
COVID IS NOT A POLITICAL ISSUE
@@aeircrown7994 just because you feel dumb, doesn't mean that was my intention.
That double-inhale at 2:36.
Probably a cut where he had an outtake and just didn't cut it very well. Sounds funny though
My man's got two lungs!
mas-ks-s is such a weird word
HE'S SUFFOCATING IN HIS MASK!!!
@@jmarinotripp240 uhhhhh well yeah...
here is my problem, everyone seems to think that the biomed engineers, such as myself, who make these masks are stupid and know nothing. Im going to go over a few simple things:
0. Yall must have never played the division by tom clancy. Check it out or read up on it.
1. Lets start with a very advanced topic in very simple terms... Brownian motion. This principle describes how particles of various sizes interact with the molecules around them. For example, large particles, such as dust, or anything above the 0.3 micron range, fall to the ground quickly due to their mass.
Now, smaller particles below 0.3 microns will float around and bounce off of the gaseous molecules in the atmosphere, sort of like a bouncy ball or a pinball machine. They are very random and chaotic; this is actually very very helpful. If you were to take a bouncy ball the size of a orange, and bounce it into a soccer net, the chances of it passing through the net are very slim, especially, if you had other objects in the way of the net (larger particles in the air).
now, for particles 0.3 microns, in size, they do not fall or float all random and like, they actually move in a linear pattern. This is like through the orange through the net. To counteract this, us engineers induced a static charge on the mask material to attract the 0.3-micron sized particles to the mask. imagine of the soccer net was magnetized and the orange were a metal ball.
The above is why its actually easier to capture viruses themselves than larger particles. viruses are 0.1 microns in size, which is very small. They bounce off of everything making them easy to capture.
2. Viruses are simple and need space to do their thing. Viruses need a host cell of a minimum of 0.4 microns to even allow replication of itself. It needs to be able to hijack and take over the cells organs and energy systems to use for replication. If the host cell is to small, or not strong enough, the virus cannot replicate.
3. We do not breath out a naked virus, thats not how they work, nor is that how your lungs work either. Any time you breath or talk, anything that goes through your respiratory system, is encapsulated into water droplets. These droplets are very large, about 0.4 to 0.5 microns in size. So anyone who says that virus particles we breath out are to small to be captured, have not thought through the process of how the respiratory system works.
4. Cloth is not magical. All cloth and plastic cloth (what masks are made of) work in both directions. why people think they dont is strange to me.
5. For those who say " if i can smell a fart through a mask, it means it aint workin" needs to go back to basic chemistry. methane particles that you smell are 0.06 microns, about 60 times smaller than a virus and yes, some will make it past the mask because they are so small, same reason you can breathe in a mask.. O2 particles are very very small
6. if your worried about cleaning your mask, never use water, that will kill the static charge. Just bake the mask at 170F for 20 minutes with no steam. just a regular oven
2:36 What a revolutionary editing style. Three separate quick cuts of the same breath.
Lmao
Lmao
Lmao
Lmao
Lmao
And there's people that do wear masks but incorrectly, put their nose out, wear it by their chin, and much more
it's a religious talisman.
Another Caveat: This assumes people that wear masks are wearing them all the time. This is only true for community transmission of a virus. Not if someone travels to visit a friend and takes off their mask once they arrive. Or when mask wearers all meet up to go for dinner and all take off their masks for the duration of their gathering because they are eating/drinking. Really these circumstances of being in the company of people for extended periods of time are much more likely to cause a transmission than fleeting moments passing strangers on the street and in supermarkets.
Mask-wearing is reducing the community transmission, not eliminating it. Think of all the people sharing the bus/train with you... you’re preventing accidentally spreading it to them. If you then want to spread the virus to the random friends you’re visiting, nobody can stop you doing that.
“But I don’t have the virus, I don’t even feel unwell”. Two words: incubation period. You won’t know you’re passing it on to other people until AFTER you’ve already done so. You may not even get symptoms yourself; any overweight friends or those with asthma may not be so lucky.
@@happyspaceinvader508 Here's yet another word, Eyes... which is 50% of your actual face that is susceptible to disease. A 100% effective mask that blocks all viral particles to your nose and mouth, is only 50% effective at blocking the spread to you. Oh and the biggest caveat to all of this, is not that masks doesn't work, they only work for a select amount of time. Do you know why surgical masks are made the way they are made, and why there are 4 different types of them? Not only due to difference in quality, but well mostly, but the sheer amount of time you could wear one, without particles on the inside of the mask spreading to the outside of the mask. From which your out-breath could spread it on further.
The Major The mask isn’t to protect you from other people... it’s to protect other people from you. It’s to stop YOUR coughs, sneezes and other exhalations from getting into OTHER PEOPLE’s eyes. Did you even watch the video... or are you simply incapable of processing on any other level than your own self interest?
@@happyspaceinvader508 Hey, that was uncalled for. They're pointing out a problem with one of the claims in the video (that masks protect the wearer, too). They haven't insulted anyone or been rude, so why can't you disagree with them politely?
Pendlera Because it’s propagating the exact same argument those who refuse to wear masks use. And (in Europe) we’re heading into a winter and an exponential increase in cases.
So, should I just wear 2 masks to help make up for someone else not wearing one?
Update Feb. 10, 2021: Well, well, well...
"CDC confirms that double-masking significantly helps prevent the spread of COVID-19"
- Double masks decreased exposure by 92.5%, more than 2X what a single mask did.
- Wearing a tightly-fitted mask reduced exposure by 60%, even when just one subject wore it.
- That number was 96% when both did.
yes
I suspect this is a joke, but still: One of the caveats at the end talks about how 50% effective doesn't tell us how the mask decreases transmission. This is significant for your idea, because two masks worn over another by the same person are not at all the same as two persons wearing masks. Masks are not just filters. So no, your strategy isn't effective.
Entcraft44 that's true, masks aren't filter, but they slow down the speed of air exiting the mouth, thereby limiting the distance the virus is able to travel. Having to travel through an extra layer of cloth DOES further decrease speed, so two masks would actually be more effective. This is why they recommend thick, multilayer cloth masks over thin surgical masks.
Exactly, if you wear 2 50% effective masks you're 100% safe. #science
if you put on 1 extra mask for each person "out in the wild" that is not wearing a mask, you will single-handedly cure covid-19
Hugely appreciate the caveats and explanation at the end, a perfect level of simplicity and accuracy, keep it up :)
so it's ok to make up and toss a hot load of nonsense into people's brains if you post a footnote at the end that says "duck!"?
@@ZennExile nonsense ?
@@ZennExile just say you're ignorant and move on
@@frankb.8071 you're ignorant.
@@efhi yeah. All the numbers being used are pulled out of thin air and represent nothing but variable statistics in a vacuum. None of it has any barring on the efficacy of different mask types. The entire demonstration here is essentially nonsense. It serves no purpose other than to falsely assert that all mask use is beneficial. Which in all likelihood is not true.
There is no consideration at all given to the specific amount of viral load a surgical mask might effectively reduce, no consideration at all given to the airborne nature of the virus, and absolutely no attempt to filter for bias. It's a junk science demo designed to push what is essentially economic propaganda.
So yeah. Nonsense.
I just want to congratulate you for the amazing job you do, making kids like me learn things without needing to go to articles and not understanding nothing. You are really helping people, and youtubers like you are inspiring people to study to become scientists. Thanks bro
This video was aimed at you, not children. Social justice warriors talk to everyone like children.
Karen: This sign won't stop me because I can't read!
Karen: Wear your mask because TV said and I have no critical thinking skills of my own! You are the karens. ruclips.net/video/7ykcUbwsfK4/видео.html
Karen: *MY NAME IS FATTIGER*
@@justyourlocalbernana1823 i just pointed to a study showing they do nothing. Get off your Karen and look into it.
@@fattiger2000 Yes, every single person here knows that the covid cells can easily pass through just about any mask you wear. No one is questioning you. But I recommend you do some real research, because that is not the reason why people wear masks. While individual covid particles can easily pass right through a mask, the majority of covid particles are carried on water particles and spittle, which masks stop. You don't even need to be a genius to realize this. This isn't rocket science, you can even see, with the naked eye, spittle flying out of someone's mouth when they talk.
Here's a slow-mo video of someone talking, coughing, and sneezing with and without a mask on a backlight, just to show how much particulate actually comes out of people's mouths:
ruclips.net/video/gZ66wJFD3bs/видео.html
American problem
Karen’s won’t wear mask
American solution
Shoot the maskless
Very good simplification, makes the message easy and understandable.
I don't know why everything has to turn into a political purity test. This should be a bipartisan issue that we can all work together on and help each other out. It's a shame our leadership has not set the example and helped make this whole thing go better.
I don't want to turn this into a political argument, again, it's insane to me that it even IS a political argument, we should be able to speak the facts, and institute policy that protects public health, without even disclosing our political affiliation. But since it has become a political argument I have valid criticisms of both sides and how they have handled this. First, the president hasn't been an effective leader in this crisis. And if he had been then I think it wouldn't even be all that political. He would always have his critics of coarse, but I think it wouldn't be nearly as polarizing as it has been if he had just advised people to wear masks, wash hands, and social distance from the beginning, and listened to his experts in his own administration to handle it properly. That said, and I'm trying to be delicate here, and give as much of the benefit of the doubt (I could be much harsher in my criticisms, but I don't want to feed into that). On the other hand, I've seen incredibly hyperbolic criticisms of the president from the other side, saying he's personally responsible for EVERY death. I think that is pretty unfair to make those accusations. Covid-19 would have come to the US anyway. It would have infected people. And people would have still died. And that's even if the president had done everything right from the outset. EVERY nation on Earth has had to deal with this virus. EVERY country on the planet has been impacted in one way or another. Placing blame solely on the president is very irresponsible, and acting in a purely partisan way during and election year.
I don't have a side in this conflict. I'm not pro any politician. I'm not saying who to vote for. And I've tried to refrain from saying who I intend to vote for, or not vote for. I think both sides have not handled things well, though perhaps in different ways. I think both sides have things they have said, or done, that has not helped us at all. And that includes blaming the other side, as well as whatever actions have been taken, or not taken. Maybe you disagree with that statement, but if we are being honest with ourselves, then we know this deep down.
So let's first, set politics aside, and beat Covid together. We have the power to eliminate the virus and return to some kind of normalcy. Perhaps not completely, the world has changed in some ways that we can't go back on. And perhaps this thing will make us more mindful of other infectious diseases, such as the seasonal flu, which also claims many lives every year. But perhaps we can make Covid a thing of the past.
Second, let's admit that no side is completely right. If anyone is trying to spread FUD (fear, uncertainty, doubt) we should not listen to them. If they are speaking sane and logical facts, and they are encouraging us to work together beyond political boundaries, then we should listen to that.
And above all of that, even if you can't get behind the idealism, even if you have disagreed with the majority of what I've said; if a business or a city or an organization has asked people to wear masks, we should wear them. We shouldn't be trying to find ways to get out of it. We shouldn't try to push back on it. We shouldn't assume they are part of some political agenda. We should just comply and wear masks to help protect the other people, the workers, and public officials we are interacting with. We should try to keep ourselves healthy, and protect our own families. Even if you don't think you will get sick, or you think you won't show any symptoms, how would you feel if you unwittingly passed it on to a loved one? A friend? A co-worker? Someone at the grocery store? What if that person had to go to the hospital? What if they had to be intubated (it's not pleasant, and can cause lasting damage)? What if they ended up dying from it? Let's not turn each other into enemies. Let's not spite each other. Let's instead think of those who could be impacted and hurt by our carelessness. Or even we ourselves could be impacted by it.
And let's not assign blame to others. Either getting mad that people are wearing masks, or that people aren't wearing masks. These people are not our enemies. They are our neighbors. Our community. Our friends. Our family. They are our fellow countrymen and women. We are all in this together. Let's be kind to each other. Let's be respectful of each other. And let's help each other out.😷💧👏
The first and biggest problem in the US handling of the pandemic was the complete ineptitude of the CDC and other government agencies. And I'm talking about the career employees here, not just the political appointees. These agencies are supposed to be an example for the world in their professionalism and depth of knowledge and instead they've been a global laughing stock.
For months they downplayed the risk from this obviously dangerous pandemic, and then actively lied to the American people by going out and saying to NOT wear masks, despite decades of research that masks are effective in protecting against respiratory infection. As the video alludes, Asian countries have known this for a long time and it's why mask wearing is so accepted in some of the countries there.
Of course, the President has greatly exacerbated the damage done since by making mask wearing a political statement.
This is perhaps the calmest and most well-thought call to action I’ve read on COVID so far. Thank you for putting in the effort to validate concerns from both sides and then encourage helpful measures for the sake of human decency. Mind if I share your statement on Facebook? I’ve got quite a few people who would find it refreshing, and maybe a few more who would find it instructive. Keep up the good thoughts - and good work!
tell that to the CDC
Everything has to be about politics now. Look at the uzaki protests, all because some people don't like seeing a short adult girl with big breasts. People just like to bitch about things for no reason.
Damn dude, I get your point, but why write a Thesis?
It gets even more complex when you consider the exponential nature of a spreading disease.
If the infection rate is 2, every person infected infects 2 others, then after 10 cycles, that's 1000 people infected.
If everyone wore a crappy 25% effective one-way mask that would drop the infection rate down to 1.5. In 10 cycles that would be 58 people.
A "crappy" mask that only prevents 25% means a 17 times lower total infections.
THAT'S why masks are important.
Good analysis
Also it could have also been stated some facts about particulate size of aerosols containing infectious disease (covid) and pore size of common double layer cotton masks. Aerosols containing covid are larger than most pore size of woven cotton fabrics that when doubled and worn properly create an almost 100% effective barrier of covid 19. Not to mention that when 2 people correctly wear cotton masks like what was stated in the video.
The arithmetic is straight-forward, but this is a modeling argument, not an evidence argument. What is the evidence relative to the effectiveness of masks relative to respiratory infections and transmissibility? 1% reduction? 10% reduction? 50% reduction? What are the studies?
there are none, this model exists in a vacuum and assumes you are too stupid to know the difference.
@@ZennExile There's this great thing called "google" that you can use to find studies on this topic. You should try using it.
There are so many studies that have been done, the fact that you’re even commenting this shows that you haven’t even tried to search “effectiveness of masks against infectious disease respiratory droplets” into the search bar. A computer is easy to use, you’re watching RUclips, go press enter in google. Go look in a reputable science journal such as Nature. Or if you’re scientifically illiterate, go look at some analyses of the data and conclusions written up by professionals with science communication degrees in journals like NewScientist. There are resources out there, and I assure you, a wealth of accumulated scientific knowledge. Yes this is a modeling argument, this guy is undeniably and obviously a mathematician first. He making the assumption that you’re not completely inept and informatively handy-capped, so that he can give you a modeling argument which just adds more to the overall argument for the effectiveness of masks. He specifically says that this is the modelling argument. You want to ask for evidence based arguements? Go search up how covid is transmitted, and go to the CDC website showing effectiveness of different types of masks, go to a journal, go to google and search up reputable SCIENTIFIC source, not a blog.
TLDR: google is a thing, search for reputable sources, this guy never said he was giving an evidence-based argument for the effectiveness of masks in terms of individual particle transmission rates, he only gave you a modelling argument for you to consider and add. No one vide is gonna give you everything you need to form an opinion, especially a scientifically valid one
@Jason Tan Well actual science says they are ineffective at stopping viruses.
pubmed.ncbi.nlm.nih.gov/25903751/
Increased risk of infection... oh no.
wwwnc.cdc.gov/eid/article/26/5/19-0994_article
Using math models isnt a replacement for real world experiments.
The big bang theory is a mathematical theory not a scientific theory. It can't be supported with the scientific method only with math. No way to verify if the math is correct especially since all of our physics models break down at the singularity.
So much is passed off as settled science nowadays without being able to support it with the scientific method.
All the climate change predictions are based on models that are wrong at least 99 out of 100 simulation runs.
@@thejarjosh Good man. Good on you for actually referencing studies.
Also let's not forget that we're speaking of exponential growth, not linear growth. If everybody wore a 50% effective mask this would mean every individual would effectively have a quarter of their expected infections per individual factored into the exponential growth formula for covid. Let's take an example formula for exponential growth where we take 100*e^3 which equals about 2008. Now we apply the 75% reduction to the exponent and find that 100*e^0.75 equals only 212 which is only about 10% of the original value before we applied our 75% reduction. Now obviously this isn't the exact formula for covid's expected spread, but this very clearly showcases the sheer power of attacking the exponent in an exponential growth curve, making masks and social distancing all the more effective the more people keep doing it. Added to this if we manage to get our exponent
None of these numbers are gonna change the fact that we all die in the end. The only thing that can matter is if life is worth living before we die. Living in the Covid Concentration Camp is worse than death.
There should be a final caveat to this, and for the worst: if half the people does not wear masks, the number of people with the disease will consistently increase, which involves the risk to reach a pandemic propagation (again). Besides, as some others have pointed out here, there is not nearly a 50% people wearing masks because wearing it incorrectly is the same as no wearing mask at all.
The number of people with the disease might increase even if everyone wears a mask. It very might well be that the primary form of transmission isn't prevented by wearing a mask. Sure wear a mask out of hope that it will prevent the spread sometimes but don't forget to wash your hands and avoid touching your face.
Humanity is doomed due to our own inherent stubbornness & stupidity.
As someone who's always wore a maks since the beginning of the pandemic and is now anyway going through having covid I really appreciate this video and how well it's explained
You can also get covid if your eyes come into contact with the virus, too. Masks don’t prevent this, so where are those videos? At start of pandemic, masks were not effective. Then people bought all the n95 masks, and there was huge shortage and medical services were the only ones to wear them. Then we were instructed to cover our face with anything to stop the spread. Then we were told to get real masks. Now,we’re being told to double mask. Very soon we will be wearing full body suits. We’re getting sick, because the virus is transmitting into our eyes.
I live in Hiroshima, Japan and this past 9 months have been the longest time I didn’t catch any colds. There were no lockdowns placed and work in our company still went on as usual. It also helped that we were all given masks in our company and every door, gate and stair have hand sanitizer stations nearby. Wearing a mask is just common courtesy for everyone. That’s why Japan recorded less than 1600 deaths(as of 9/21) due to Covid19.
MASKS WORK SO PLEASE FFS JUST WEAR THEM
masks only slow things down. they can't possibly 'work' to end the virus except in dreamland. and while they are 'working' they are causing other problems. directly and indirectly. if masks in japan kept you all virus free then you were kept free of ALL contagious diseases of which there are a myriad that the human being needs as part of its acclimatization to its environment.
If masks kept you free of covid they kept you free of everything else - as you say, of the common cold even - and your body, your nation, missed out on a seasonal dose of adjustment and 'toughening' up.
You are effectively in quarantine with bodily defensive abilities slowly dropping and dropping while outside newer and newer offensive particles are being created all the time.... and inevitably they will get in... like smallpox to the Indians.
there are more bacteria in a human body than there are human cells and god knows how many more virus particles. it is the nature of our reality. they'e crawling all over you now, and all within you. you're immersed in a bath of them. you are a bath of them, it's bacteria that eat most of your food for you. it's your microbiome that even decides your moods and your attitudes. microbes is everything. that's microbes, not virus. I know. but if microbes are that important then you can bet your socks virus are equally important too - as perhaps this current thing demonstrates at least one side of.
But either way because with masks you're keeping out bacteria even more efficiently than you're keeping out viruses. Much more.
And if you think you're going to build a healthy successful nation of bacteria and virus free individuals then you're very much mistaken I think.
@@abrogard142 I'm guessing you missed the point of this video. Masks reduce frequency of transmission, and the effect is bigger if both persons in an encounter wear masks. If this along with other measures reduce the number of people that 10 contagious people infect to below 10 the virus will eventually reduce to essentially zero in the population. It is not 'fantasy land' we are talking about. There is no absolute protection. It is pragmatic measures to slow the spread so that hospitals are not overrun with those cases that are life threatening. Its not much to ask, to make an effort by wearing masks when
@@FredPlanatia i guess I demonstrated I knew that in my first sentence.
On a different note, the channel banner is brilliant, outstanding.
The worst part is you can literally PROVE this with math, and see the results all across the globe and yet there is people like: that’s fake, I did my facebook research, get out of here with your math
"So if only 60% of people have to wear masks, I can take it easy and be part of the 40%."
You forgot to prove the part where masks are any level of effective. Kinda important, no?
@@themblue8236 Just a friendly pointer about this article being about Influenza A, which is one of the major flu subtypes, which is a completely different family of viruses than Coronaviruses, which do not cause the flu.
@@snex000 You don't need to prove the same shit in every single video when there's millions that prove that already.
@@dusklunistheumbreon There's not a single one. Why are you lying?
The pizza signifying misinformation was a nice touch.
the video itself is mostly misinformation so this is more ironic than anything else.
Found someone who was in denial already. Wow.
Alternate title: Send this to all the Karen’s you know.
A mask has no effect on viral transmission. Do you understand basic physics? I hate to tell you, but the definition of a "Karen" would be you. A person that reports others for not wearing a mask or reports people for having too much fun in public because they are not social distancing themselves. You know, a hall monitor for adults. That would be you. Making sure the sheep are wearing their masks. Now, do you understand what a "Karen" is? People like you absolutely hate people like me because I represent freedom and intellect. You represent emotion just like toddlers do. What really ruins your day is the fact that you absolutely can't do a thing about me going into a store without a mask. You'll probably be up all night thinking how helpless you are when it comes to my freedom. How about this for a nightmare...Just think of the millions of people going out shopping without a mask this Monday. All the while you are wearing a mask wondering why none of us anti mask people are getting sick from the goblin flu. I think that would be too much for you to take!
@@paulk9188 aww you're so selfish. it's not about how you feel about masks it's about protecting the world and getting rid of corona. you obviously don't care about our world and it shows 😘
@@ashla_ASMR Urine idiot if you think a mask protects you or any mine else from a virus lol. I’m fact CDC states 85% of people that wear a mask “always Or “often” tested positive for Corona lol. But leave it to a lib that does not understand basic physics
@@GrayDaDolf oh yeah my bad 🤦🏻♂️
@@ashla_ASMR Why aren't masks "getting rid of corona" if they work so well?
This does not take on account many other factors that involve contagion, what if you touch your mask with infection on your hands ? what if when removing you touch your face ? and many more of this kind, nothing in said about this i dont think wear a mask is effective anymore, a detailed guide on what infects or not is missing and seems no one has a clue. For how long does the virus survive on the mask ? how long on the clothes ? and much more...
It's infuriating frustrating working retail and even in 2022 how people still can't wear masks correctly. I mean if you're going to leave your nose hanging out or wear it on your chin just take it off. Please it's insulting at this point.
Please stop chewing out retail workers that continue to wear them after we've emerged into the endemic stage of this virus. If someone is politically annoyed at masks please just can it and keep it to your self. Thank you.
What about the discussion that human behaviour will be affected by wearing masks, such as choosing to wear masks but not doing social distancing? Is it possible to study how people modify their behaviours based on wearing or not wearing masks?
i'm assuming you're talking about the seatbelt effect, i.e. when wearing seatbelts became mandatory the number of accidents increased because people thought "i'm being safe, so i can take riskier actions."
That's why people encourage *BOTH* wearing masks *and* social distancing, so people don't just wear a mask to a crowded place because they think they're safe
@@KomoliRihyoh yeah exactly that effect. I have friends making that argument against wearing masks, and while I don't think it's an argument strong enough for ME to not wear masks, I'm curious how other people think about it.
There is a *ton* of psychology about people who wear masks and the "anonymity" it provides - people do dumb shit when they can hide their face heh
The limited spread of Covid-19 in many Asian countries seems to provide some pretty solid evidence that the changes in behavior from wearing masks does not outdo the benefits. I also don't really believe that this would be a big problem since the kind of person who wears masks in the first place is also probably a lot more likely to follow social distancing guidelines whereas the kind of person who doesn't would absolutely not follow those guidelines either.
@@hedgehog3180 according to you. But in reality mask use encourages the one thing we should be discouraging above all else. Increased contact. Wearing a surgical mask at Walmart cannot protect you from the virus if someone who was shedding virus just walked through the store ahead of you. Even if they are wearing a surgical mask as well, they are expelling far more viral load that what a cotton or surgical mask can even theoretically capture (in reality they capture almost none due to evaporative effects).
Nothing spreads SARs COV 2 more efficiently that large groups of people. It does not matter if those people are all wearing masks.
After watching this video: is "mask" even a real word anymore
That’s crazy, I eventually forgot what a mask was.
ah yes semantic satiation
My brain started isolating the "-sks" sound. Was really strange
You forgot to mention the main reason - 99%+ of people in the street don't have it.
they are stupid
Show this to all the Karens, Henry.
Karen's will then say
"Call your manager!"
I don't think they could even comprehend basic mathematics, so it would be a waste of time.
You forgot to include exogenous variables. ie people wearing masks engage in higher risk activity, touch their faces, etc.
Exactly-- if you're wearing a mask, it means you're already in the wrong place; and you've failed our conformity test. Time for acquiescence training at the obedience camps.
He didn't simply because that math is stupid complicated to explain simply.
@@dusklunistheumbreon almost like the reality of the situation is too complicated to represent in a simple statistical model that ignores every variable and assigns it's own random values to create a visually appealing demonstration?
@@ZennExile It's possible to represent with a simple model, just the math behind said model would be far more complicated than could be explained in a short video.
This channel is about taking super complicated stuff and making it simpler to understand, and making it inside a shory video. Unfortunately this means that sometimes accuracy will be sacrificed in order to make something easier to understand or to make it short enough. He chose to sacrifice the accuracy of using the actual effectiveness of masks in favor of displaying clean and easy to understand numbers. That, and the efficiency of masks varies depending on a *lot* of factors, the most obvious of which is that not all masks are equally good. Cloth masks are nowhere near as good as N95 masks, and some cloth masks are significantly better or worse than others.
@@dusklunistheumbreon pop quiz hotshot, whats the difference between 100% infected and 50% infected?
Finally, an effective informative video...thanks.
Role models in leadership can go a long way to getting people on board with wearing masks. Unfortunately leadership in the US did not demonstrate this but actually talked down to people who wore masks, didn't wear one themselves and dragged their feet from the very beginning. The US represents only about 4% of the world's population but we had about 25% of the world's covid cases and over a million deaths. A large portion of those could have been avoided.
Leadership in the US? You're joking right?
Karens be like: Math is a government introduced concept to manipulate us into wearing masks and invading our basic rights
You just want shariah law. No wonder you don't care about freedom and rights. Go back to your country husein osama cousin.
You want math?? 99.96% survive the Virus after getting infected. About 30 million have gotten it and survive. Most are of the age of 72 and above. The mortality rate for every other group is 0.0078% . Not worthy of losing your rights over. The virus will go. But I have an idea lets get rid and cancel Shariah law due to Covid-19 so we can save lives. If you don't like it; oh well too bad we need to save lives first. So lets get rid of shariah law everywhere in the planet for safety reasons.
bruh
@@MrAnibl Shut up. They aren't a Karen. They were thinking about what a Karen would say. The joke went waaaaaaaaaay over your head.
@@blazewolf9912 Unserious nin wits can not be taken seriously and make everything a Joke like you. Your idea/ interpretation this was a joke is strage and bizzare. Plus why are you so offended??? BecAuse... the serious part behind it you don't agree?? ha! ha ha haaaaaaa!! got yah!!! Now your pretense is funny shit... LOL U Not very smart are you??? Btw what I said was also misinterpreted and went way Way.. over your head. But perhaps it is intentional because if you address it you know you lose... Again you are not too funny or smart..LOL
Nice video, great link. One comment: Whenever building demo-material on chances and properties, please, do NOT use 50% as your value, use something asymmetrical like 40% or 33.3% (if you go with fractions). the fact that p = (1 - p) for p=0.5 makes for a great way of introducing confusion and diminish the learning effect. Don't sabotage your own goals! A lot of "incorrect" intuition is because people believe they understand a "50:50" chance, while they do mix things up in the process of thinking on it.
This was a good point. Even I derped up when figuring out the math for the relation here.
just want to point out that all this is made to protect the possible 0.02% not giving a dime if the other 99.8% of the conglomerate gets sick by the use of it. so, where is the math behind that? like... the risk-benefit ratio for society itself???
One major aspect that influences mask effectiveness is not covered - what happens to social distance if people wear masks? My understanding is that people tend to get closer if wearing mask, offsetting or negating the effect of masks....
Yes and no. Psychologically this is absolutely correct, people will keep less distance when wearing masks because they feel safer. But they actually have good reasons to do so, just the fact that a mask (no matter what type) decelerates the exhaled air and makes the exhalation plume not reach as far completely changes which amount of distance is acceptaple.
@@hammerth1421 For me having the mask on constantly reminds me to be on my guard. It dispels that feeling of normality i usually have going to my usual places.
In my experience so far, the only people who try to maintain proper social distancing are the people wearing masks. I think taking the pandemic seriously encourages both behaviours.
*
That's not what my mommy said!!!
ruclips.net/video/9wDibZwoePo/видео.html
*
your understanding is mostly correct. Not only does it make people more comfortable with violating social distancing mandates, it encourages them to go and seek out scenarios where social distancing is impossible. Because, they have their mask and the TV said that makes them safe.
Hi I just found out about exoelectrogenic bacteria and am hoping you could do an episode on them! Electricity from bacteria?!!! too cool. I think you would be able to explain how it works really well:)
Love! All your minute physics videos and this one is especially great. Math is marvellous.
ruclips.net/video/7hfgDF-cAP0/видео.html .
I wonder if similar masks have diminishing returns. For example: Person A has a 50% effectiveness mask and Person B has the same type of mask. A's mask works as intended, but, by the time the infectious particles reach B's mask, most of the particles that would be blocked by the mask have already been removed, making B's mask less effective against the remaining infectious particles.
I'm not saying this is definitely how it is, but it does seem like a reasonable enough situation to be worthy of consideration.
Not likely. This scenario only happens when you assume that infectious particles are heterogeneous, meaning the particles that made the escape from Mask A have some special characateristics than the ones being trapped thus you can conclude the same characteristics may also help those particles to get their way through mask B. However, if you assume all particles are identical which I think this is correct scenario you should consider otherwise the particles are mutated, a simple probability analysis should apply here.
No, it would give greater safety. Consider 100 particles expelled. (or 100 million - same thing)
Person expelling 100}50%->50 out ....50 {50%-> 25in Person receives ~ max
This Video is so well done!
Hint: Don't sort by new.
why?
I did; and I commented in every person who was confused about it or anti-mask.
Masks aren't built to protect the user. They are meant to protect others from you. But they kinda protect you anyway.
They do both.
It also assumes that effectiveness of masks is independent. Even assuming it works evenly in both directions, if my 50% effectiveness mask stops all bigger particles (half of them) in either direction all of them will just pass through the same type of mask on the other side. Probably this is a bit extreme and assumes same type of mask (and protection measures) on both sides
Good point. Using the logic in this video, Henry Reich could just wear 10 masks and then the risk of transmission would be less than 0.1%, and so he wouldn't need to worry about what other people do.
About Caveat #2 assuming that masks protect equally for inhalation and exhalation. That's an incorrect assumption. Masks aren't very effective at preventing an uninfected person from becoming infected. However, they are very effective at preventing an infected person from infecting others.
They really aren't in real world studies. Scientists have done many studies over many years and the result is pretty consistent that they don't help.
Also, asymptomatic people have been found to have basically 0 chance at spreading covid, just like with almost every other coronavirus we regularly deal with as well as other influenza like viruses. People with an infection and can transmit show symptoms and they should be staying home, just like if they had the flu
@@alexdunphy3716 that's absolutely false. Approximately 65% of all cases that have been traced back to a source were traced back to people that were infected but we're asymptomatic.
Masks absolutely do work and preventing infected people from spreading the virus. They certainly aren't 100% but they absolutely are very effective.
The thing people always forget is that asymptomatic people don't cough or sneeze!
The Article is so well written and designed, I would like to know how much effort(Time) went into this creating this.
Exactly-- if you're wearing a mask, it means you're already in the wrong place; and you've failed our conformity test. Time for acquiescence training at the obedience camps.
Enough time and effort to create false assumption leading to misguided conclusions. Masks offer almost no protection in preventing the transmission of COVID-19.
Nonpharmaceutical Measures for Pandemic Influenza in Nonhealthcare Settings - Personal Protective and Environmental Measures
wwwnc.cdc.gov/eid/article/26/5/19-0994_article
The Truth About Masks | COVID-19 Facts From The Frontline
ruclips.net/video/7_b0AhqvAVw/видео.html
Coronavirus Fact-Check #6: Does wearing a mask do anything?
off-guardian.org/2020/06/06/coronavirus-fact-check-6-does-wearing-a-mask-do-anything/
The Corona Simulation Machine: Why the Inventor of The “Corona Test” Would Have Warned Us Not To Use It To Detect A Virus
uncoverdc.com/2020/04/07/was-the-covid-19-test-meant-to-detect-a-virus/
This is a great video on the basics of masks. However there are a few things to take into account. 1. Proper mask use. Wash your hands before handling a mask and after handling a mask. Only touch your face or mask when you put it on or take it off. Touch your mask by the parts furthest from your mouth and nose, so by the strings or edges. As soon as your mask is on treat it as potentially contaminated. Dispose of disposable masks right away. Put your cloth masks in the washing machine as soon as you get home. 2. The majority of transmissions (atleast in the Netherlands) Take place in familial or friendly gatherings in which people tend to be lacks with the rules and not wear a mask. Be careful with these still. Don't shake hands, don't share food, don't sit closer than 6 ft to eachother. Do not attended if you have been in contact with someone showing symptoms of CoViD 19 for 14 days prior to the event and check eachother on this. Do not have gatherings that are larger than single digit if the room allows you to keep a 6ft distance. And most of all, Keep yourself in check, report your own health if you think something is wrong. Don't hesitate to call a doctor. Stay safe and healthy people.
Its all about control, but the sheepy will never understand.
YEs that would be a good addition to this video.. I Have seen so many people rub the front of their masks.. adjusting it touching it.. and then touch everywhere and everything. Drives mY OCD crazy just to see that.
@@annewood8673 What's with all this non-medical journals spams. Did anyone ever tell you not to trust anything you read online. Learn to use your head. Look at all the places where the spread is well controlled.. in other countries. They're wearing masks. Simple logic. Not that complicated. Use common sense. Get out of your damn cult.
Just in case people are wondering, The thing about the masks is that in the performed studies there was at best a marginal reduction in transmission if masks were properly used. The reason why I elaborated on proper mask use and just how much effort it costs is because improper mask use seems to increase the chance of infection marginally as well compared to not wearing a mask. There is however a significant reduction of transmission if infected people wear facemasks even if they are unaware of the infection. Meaning that these measures are blanket measures aimed at catching non-symptomatic transmission or through people who are unaware of the infection. It is an excersise in risk assessment and the government is chosing to take as little risk as they can by obligating mask use. Here in the Netherlands this is currently restricted to urban centers like amsterdam and public transport. In either cases the recommended distance of 1.5 meters for asymptomatic transmission is not always something that can be applied, so that is why. The 1.5 meters or 6 yards btw are to prevent transmission through just talking or breathing. Not for sneezing or coughing. The same as in any given epidemic/pandemic the best way to reduce the R0 is to reduce contact between vectors. As this is unrealistic in a functioning society, countries try a lot of different or variable methods to mitigate transmission. Whether they make the right choice in this is often hindsight. What you can do for yourself and what absolutely does work is being mindful of the health of those you interact with and your own and as sad as it sounds, limit contact with those who do have other heart/lung conditions. For you it may not be more than a flu, but be mindful of transmitting it to other people who are vulnerable.
@@spambaconeggspamspam We Are Victims of the Greatest Crime in History ruclips.net/video/EhYX8RzyMC4/видео.html
Thank you so much for this fun and clever information. Just as it should be. Now if only 50% of people would see this. And 50% can think for themselves we will beat this covid.
The safest mask is one,which allows unhindered passage of air. To do this covertly, use a mask with a filter but remove the filter material from the inside and cut away any other material. This will allow air to pass without restriction and is not visible to anybody.
This is a really cool way to illustrate the importance of masks!
Back to the flock where you belong
Funny how when confronted with sound arguments you immediately degenerate into accusing others of being brainwashed sheep.
Or rather, it *would* be funny, if it weren't so sad that you're projecting this hard.
Cognitive dissonance is a bitch.
@@majorgnu unfortunately reality just doesn't support you observations. Turn the media off and your reality disappears.
.000571% of the population, I would start the argument there!
@@padseven It's very telling that you would "start the argument" on ".000571% of the population" without even mentioning what that's supposed to be or where you got that figure from.
Because honest people make arguments by pulling random figures out of thin air with no source, context or reasoning.
Excellent and east-to-understand video. A must see video for those that still don't believe in wearing a mask during these COVID-19 times.
Surgical and canvasmasks cover against covid-19 is more cosmetics, there's been research about it. And how you explain this, infections has increased in those countries where they order to use masks in all situations?
I used to be an introvert. But with Covid? NOW I'm an INTROVERT. My true introvercy has been released. Epic.
"Magic maths of masks", this one wasn't easy xD
Honestly even people who wear masks irritate me. I use public transport a lot and here in Bulgaria it's necessary to wear a mask if you want to use it, but I constantly see people just putting them around their mouths and not covering their nose which makes me mad, because what's the point of even doing that!
Which is even more stupid for them because it turns out the receptors the virus uses to invade the body are most prevalent in the nose!
I think we should send this to all of our friends and family
thanks, Minute Physics (:
Mathematically interesting! However, the re-usage of a mask should be taken into account. Using 1 mask for the whole day, of even multiple days, taking into account lifespan of virus outisde etc.
Yes and no. Re usage impact efficiency, yet wearing them still does a better job as explained, it does change the overall result but not the equation
Yeah but the inhalation protection of surgical masks is only around 10%. The overall protection is higher than intuition, sure, but not by much. The exhalation protection though should be higher.
I see no reason to believe there'd be a difference.
The anti-maskers probably don’t understand this because their hearing aids are set too low
Elijah ASMR don’t*. also what’s so bad about wearing a mask, even if you don’t think it works? a tiny bit of discomfort?
@Elijah ASMR dr elijah graduated from facebook conspiracy academy
@Elijah ASMR Citation needed.
Elijah ASMR what’s wrong w wearing it anyways
Elijah ASMR you can still wear it tho lmfao
Now we need the math behind why there are no infections during mostly peaceful riots.
You should also add that wearing masks without social distancing makes the percentages change drastically.. Especially when yelling, singing and making physical contact with a crowd of people. People now think masks are magic..
You must believe now, Maths is everywhere!
Be like the tempestus scions, wear heavy duty gas masks from the year 40,000
50,%of American be like: what? This is bull shit
I'd love to see where he got that a cloth mask worn well can be 50% effective.. I appreciate the analysis. but feels like the numbers used were pretty high
Cloth masks can block >95% of particles, depending on design and fit.
How about you just look it up instead of shitting in your hand.
Meanwhile, in Sweden...
...where no one goes near anyone else anyway....
… has failed horribly compared to their Scandinavian neighbors. *Deaths* per capita:
5x higher than Denmark
9x higher than Finland
11x higher than Norway
@@danielt6689 Too true about the deaths, but I would point out that masks were a non-factor as they did not become mandated until August in those countries (though the Fins flirted with the idea for months), long after the death tolls had been racked up - if anything, the other countries have been ramping up since they started wearing masks. The long game will be worth noting, as well as counting in the total those who died out of neglect due to lockdown.
Covidiots: 'That doesn't affect me because I'm too stupid to have common sense.'
@Roman M.
Тролль
@Roman M. hmm then explain why my family member died from it 🤔
Thank you so much for this! Sharing it everywhere!💗
did he explain how the static dissipates tho?
@@kazzTrismus did you watch the video before commenting?
@@LabGecko did you...does he say how long the static lasts?...cuz the answer is about 20 minutes depending on environmental variables up to roughly an hour.
@@kazzTrismus I did watch the video, and you obviously have not if you don't know the answer. Watch the video, then we can talk about your claims.
@@LabGecko just re watched...didnt say.....
even the cdc and the who have stated my numbers for years.
enjoy the coolaide
mask over nose = understands science
mask under nose = doesn't understand science
no mask = denies science
mask under chin = confused about science
mask over nose = Tool of MSM, corrupt politicians, and big pharma.
Nonpharmaceutical Measures for Pandemic Influenza in Nonhealthcare Settings - Personal Protective and Environmental Measures
wwwnc.cdc.gov/eid/article/26/5/19-0994_article
The Truth About Masks | COVID-19 Facts From The Frontline
ruclips.net/video/7_b0AhqvAVw/видео.html
@@tommysteel392 That may be the case, but what does it matter or change?
Wears masks = doesn't understand how virus works 🤦🏻♂️
@@BeefyTV lets just use our brains for a second and think......
Virus a germ that floats around in the air and landing on objects.
Infected person coughs or sneezes causing the virus to spread mostly in the direction they faced.
To get infected, virus must enter the body by means of the mouth, nose, ass, cuts, and other parts of the body not fully secured. Main entry for a virus is mouth and nose.
A mask that covers your nose and mouth redirects the main path of which the virus fly in which in turns reduces the chance of the uninfected breathing in.
Taken from this basic knowledge we used, we can figure out that those who wear a mask reduce the chance of catching or spreading the virus thus have an idea of how a virus works. So I'm not quite sure how those who don't wear a mask think that is the way to stop a virus from spreading. 🤦♂️
I don't know about you, but when I sneeze, I do it into my elbow, or my hands 🤷🏻♂️ this video mentions nothing a out sneezing and only talks random, plucked out of the sky, numbers
I came in for a math video, somehow ended up sitting through a tongue-twister instead. Good job on getting the voice right bro! I can imagine how difficult it might have been to not mispronounce things..
Sir, I am a school pass-out studying for NEET.
Sir, as we know the total energy in the first orbital of H like atom is -13.6eV. and to excite it to first excited state of energy -3.4eV we need to provide 10.2eV energy.
My question is what if we provide some energy intermediate between the first energy gap and second energy gap say 10.5eV (I agree that 10.2eV will we used to excite it to the second orbital) but what will happen to the remaining 0.3eV?
A teacher told me that it will be used to heat up the atom, but how an atom can heat up since the atomic scale of thermal energy is kinetic energy?
sir it would be my great pleasure getting my doubt solved by the legend of physics like you please answer sir
MP, could you do a video on the effectiveness of coughing/sneezing into your elbow? Here and in other vids, the effectiveness of masks is measured against people coughing/sneezing directly at other people, but this is unrealistic as most people cover their mouth (using their arm as an impromptu mask). There must be data on this, right?
Good video, but I feel that explaining the types of masks and their efficiencies would have added a lot of useful and practical information (FFP2, N95, KF94 etc)
Here where I live the number of new cases doubled in the last few weeks. We went from 3-4% daily positive cases recorded to 7-9%. And thats with masks in public areas, shops... Not that people stopped wearing mask because you cant even enter a store without one... I would say its because schools have opened but the numbers dont add up. The lowest number of reported cases is in the ages under 14. Its getting worse and worse with getting colder and colder outside. A lot of people are now without symptoms or with little to non and the virus has an easier way to spread.
Mind you, one factor is that the evidence seems to show that the less of the virus you are exposed to, the less bad you'll get the disease, so you should expect mask-wearing will result in more milder cases and fewer severe cases.
But yes, schools opening is a very bad idea. I don't know what you mean about the numbers not adding up though.
Where do I get the N50 masks you speak of?
I would argue that cloth masks are
Carl Willows Why can't you buy N95 mask? Are your government so useless that they have not solve the supply issues even until now? Use N95 they are the most effective. Those people that say not to use them are liars. Cloth mask is better than nothing but N95 should be the recommended gear.
@@kazedcat No it should not. N95s are still in limited supply (and healthcare institutions are still having to pay highly inflated prices) and almost no one in the public wears them in a way that is much more effective than a simple surgical mask. You have to be individually fit tested and trained for N95s to wear them effectively. If you don't work in construction/mitigation or healthcare you probably haven't had that experience. That is why N95s should be preserved for those who need them most. Even in healthcare we are having as many patients as possible tested to reduce need for N95s and having to come up with re-use methods. Misinformation like yours is putting our providers at risk.
@@devoltar The incompetence of your government should not factor in determining minimum health standards. Your government should have already sort out the supply for the medical personnel and the N95 mask hitting the market should only be the surplus production. Ignorance is also not a good reason to lower minimum standards. If the population do not know proper procedure then that means you need to intensify information campaign. All your objection are weakness that needs to be address directly and not an excuse to lower safety. You should be thinking of improving competence instead of accepting incompetence.
i literally can wear masks due to sensory issues. I still try to be precautious when out and about. If i could wear a mask i would but having a panic attack as well as a sensory overload which makes me curl in a ball and unable to do anything isnt viable
You.... didn't really prove at all that masks do work in both directions :\
just kinda stated in multiple ways how, if that assumption is correct, your conclusions make sense
Masks do work in both directions, of course. But the percent effectiveness is different based on whether it's blocking outgoing or incoming disease transmission. It's probably more accurate to say that a cloth mask successfully blocks outgoing 75% and incoming 25%; Your mask can block most of the droplets when you sneeze or cough, but a sneeze droplet from someone else can get into your body via your eyes or ears.
@@imveryangryitsnotbutter not it's not accurate to say any of that. Even an N95 worn correctly on clean shaven skin does catch even a majority of the viral load you expel because the mask is limited to a specific volume of air per second. So if you cough or sneeze it pushes the mask off your face and expels your bodily fluids in a cloud around the mask instead. And surgical masks, and cotton masks, have never been proven to reduce ANY amount of viral load in a legitimate study. They only catch a specific range of particles and droplets. A range far larger than any viral particle or aersoloized droplet nuclei. The theoretical maximum amount of viral load reduction from these masks is 15% -30% under absolutely ideal circumstances. And even that requires you make a waterfall of assumptions. And this only applies in a single direction. The theoretical maximum amount of viral load these kinds of masks can filter from INCOMING air is more like 3%, and that depends, once again on a mountain of assumed variables and controlled conditions.
Out in the wild, the masks that 99.99% of people are being forced to use, provide absolutely ZERO protection from viral transmission in the scenarios in which they are mandated to be used. Like supermarkets. The only way to reduce transmission rates is to reduce contact. Mask Mandates allow companies like Walmart and Disney to increase contact under the umbrella of plausible deniability.
Er go, masks are 100% useless.
@@ZennExile "15% reduction outgoing reduction 3% incoming = 100% useless"?
Not sure about two-way effectiveness though. From what I`ve heard it may only be protecting from exhalation. But really with so rapid changing of our understanding I could just be too late on life:)
Can we talk about how when people wear the mask, use disposable gloves, or use hand sanitizer, they somehow become ignorant of what they touch.
Unless you spout that masks are impenetrable virus force field then you're anti science.
the virus can't be absorbed through skin. As long as you don't let anything possibly contaminated touch your nose, eyes, or mouth, wear a mask, and wear goggles, the chance of you catching it will be waaaaaay lower.
@@cygnet6 The amount of poeple i watch put on gloves, go about their business, and then touch their face is unreal.
@@MushyMaan Exactly, gloves don't matter if you go and touch your face wearing them
Your math fails, but not in the way you think. Anti-maskers tend to gather in large numbers...
Doesn't natural selection correct that?
you know who is gathering in much larger numbers? All those people at grocery stores, and soon all those kids at school. They all wearin masks, gatherin in mass, yet Morawska and Milton (2020) in an open letter to WHO signed by 239 scientists, inhalation of small infectious particles is not only biologically plausible, but the epidemiology supports it as an important mode of transmission for SARS-CoV-2, the virus that causes COVID-19.
That means masks are useless in case you were wondering.
@ritemoelaw_books83 they aren't useless if used in conjunction with airborne virus protocols like proper air filtration, decontamination, sterilization, and careful attention to the proper use and type of each mask.
But surgical masks, and cotton masks, are absolutely useless to the general public in places like grocery stores.
If you aren't smart enough to understand what I am saying without more information, that's a sign your education level is insufficient to grasp the underlying concepts.
@ritemoelaw_books83 blah blah Dunning Kruger effect blah blah, I see through your facade little cajun boy. You cannot do me a bamboozle. I am your superior. Your mother can confirm.
@ritemoelaw_books83 lmaoooo
God, the amount of people with their noses out of their masks pisses me off more than the people smoking directly under the no smoking sign at the bus stop (basically giving everyone waiting for a bus second-hand smoking).
But the unspoken rule of Rhode Island is, to not initiate conversations with strangers, or something, because all you get is angry stares from everyone who _actually_ knows how to use a mask.
why does this takes a year for people to understand?
Only thing extra I would add is the effect of infected people (sans mask) spreading to surfaces/hands/food/etc, circumvents non-infected peoples masks.
Aaaand the mask deniers are already in full force and strength in the comment section, nice :D
Before COVID-19: Stay away from negative people.
After COVID-19: Stay away from positive people.
Is video ignores a whole lot of variables