How effective really is a mask?
By now, the science is settled: Wearing a mask is the easiest, least intrusive way to slow the spread of the novel coronavirus. Understanding why isn’t rocket science, but it’s not always intuitive, either. If you—or someone you know, say, a misinformation-spreading Facebook friend—are looking for a handy explainer, try this YouTube video from It’s Okay to Be Smart.Viruses can be difficult to understand because they’re invisible to the naked eye, traveling inside water droplets on unseen air currents. With a technique called schlieren imaging, though, we can see these air currents, and that’s what It’s Okay to Be Smart uses to demonstrate how masks work.
The science behind schlieren imaging is a little complicated, involving a spherical mirror bending light in subtly different ways to reveal differences in density that would otherwise be invisible. It’s important to note that this doesn’t let us see viruses—they’re too small for that—but it does let us see how air flows when we exhale.
Using a combination of slow motion and schlieren imaging, the video reveals what a cough looks like with and without a mask. The differences are striking. The unmasked cough creates a massive plume of potentially virus-laden air, traveling much farther than you’d expect—about 2 meters, which is why social distancing means staying outside that zone.
A mask does two things: First, it captures much of the droplets expelled when you cough, sneeze, or breathe; second, any that aren’t captured have their momentum blunted, keeping them from traveling very far. That means less chance of infection for people around you. The bottom line is that masks work—and this is a good video showing you exactly why.
It is up to the reader to decide, but this video makes total sense to me.
Comments (27)
Whatever YALE has come up with it is interesting the report has not been peer-reviewed yet, not been approved by any credible medical authority, so is, in fact, totally meaningless.
Any covering of the mouth and nose HAS TO HAVE SOMEE EFFECT, I was taught as a child to cover my mouth with my hand if I coughed, I was also taught to use a tissue or handkerchief if I sneezed, both done to protect those around me from any germs I may carry.
Until someone comes up with a better way to limit infection a mask makes total sense when in a place surrounded by people.
Not sure if you've heard Riz but as a non vaxed person without the vax passport........Omricon is only important if you need a booster.
Check out this vid......Amazing how "media" portray covid without masks.
The Mask is slipping.....maybe you need a RESET
Please refrain from commenting on my blogs, thanking you in advance.
Merry Christmas
Are you a champagne socialist.
Here's an idea Riz, go back to your birth place. Maybe, just maybe, you could educate folks since you're a 'professor'
Just say.........SIR
"Better to be thought a fool, than posting on CS and removing any doubt...lol"
Yeah. It's almost as if someone hasn't said that before. Your cliche's are awesome Slippy
Group hug but the lolz are a tad old school ...........LOLZ
Hope that satisfies your question. and please, don't expect me to reply again.
yes if those weren't treated for bacterial pneumonia, of course, they would die.
Some doctors refused to give patients antibiotics saying how covid is virus and antibiotics don't work.
Plus , not to mention how many were killed by vents.
Specifically, it is terrible to wear a mask when you get sick.
Said who? Or in your case "WHO", "IMF". "WEF" etc etc.
It's not logical at all. If the double jab and passports/certs were 'logical' from 2 years back then why is a 'booster shot' necessary?
What's next Riz?
yes if those weren't treated for bacterial pneumonia, of course, they would die.
Some doctors refused to give patients antibiotics saying how covid is virus and antibiotics don't work.
We'll Never KNOW how many deaths attributed to COVID may've been avoided by prescribing a Common Broad Spectrum Antibiotic ...
Or by NOT adopting Masking as a Public Health Policy WITHOUT including a Warning regarding Cloth Masks.
The Cloth Mask info was AVAILABLE -
The University of New South Wales study was Published in 2015 -
That was Well BEFORE Covid -
And Governments Worldwide Encouraged/MANDATED Masks as Public Health Policy.
Alberta children wear masks to guard against Spanish influenza in 1918
In NZ we have a fatality stat from "covid" whilst get bullet lead poisoning.
C'mon Riz, the gigs up and regardless whether its MRNA or Phizzer the phizzer is even compatible regarding death rates. Not just NZ but other countries as well.
How many people die in India? Not from Covid but the common flu? How many millions?
Either you're not intelligent, or you have no idea about actual stats.
But, having said that......stats can easily be manipulated depending on where the UN funds the farce.
If I were you I wouldn't waste any more of my time on any subject to do with covid on cs
Have a very safe 7 a wonderful Xmas Riz
"Intervention Effect on Symptomatic Seroprevalence (detected in blood sample) by Mask Type" ...
No Mask - 0.76
Three Ply Cloth Mask - 0.74
N95 Surgical Mask 0.6 7
Control Group vs Cloth Masks
"The difference was very, very small, which was NOT STATISTICALLY SIGNIFICANT."
^^^^
That's @ 6:00 -
DUHHH!!!
Since you follow science and death per pop. Should the powers that be ban cars? More cars kill people than the flu. How about Gretta using diesel crossing the Atlantic on a "carbon' boat or John Kerry flying his private jet.
Nup, What's good for yee isn't conducive to the pig but I'm sure Pat will give an awesome cliche. Some, if not all are more equal than others.
Own nothing, and you'll be a UN electorate. BTW, I don't recall voting for Klaus but he's almost in my back pocket without having to do the hard graft.
"Own nothing, be Happy"
What next? Ban sport gyms since they share a common area.
Of course, the mainstream media assumes the general population is uneducated (when it comes to science) and will never question their ridiculous statements and health recommendations.
For years and years, the mainstream media have been promoting McDonald's, really ?? they care about our health ?? wouu..