Masks - Review & Charcterization
 

Flow regimes characterized

also - silk is good


https://aip.scitation.org/doi/10.1063/5.0029767

Wow. Good find.

I bolded the parts that I've been saying for months.

:)

more bold on what I've been saying

That last bit I hadn't really thought too far on. That when talking with a surgical mask on you have to almost shout thru the mask.

And I have to point out, that while I can follow the math I often wonder why people include it.

A bunch of pedantic approximations to say what a masked guy with a vape pipe can say.


http://forums.pelicanparts.com/uploa...1606622060.jpg

The math is there b/c it is written physicists who like to figure out how fluid flow works.


The paper directly contradicts a number of memes that island has been posting for some time.

Oh webb...

physicists know how fluid flow works. Those eqns are nothing new.

And I'll bite, where are these big contradictions?

That's a very long article. So instead of you scientists bickering, why not decipher and give us the cliff notes and what the skinny is.

I thought that I did.

Of course there is a lot more specificity about the physics, but the take-away is in that vape mask image.

I have been saying for a very long time that this virus does not escape bodies only as spittle - that much smaller aerosols will also be exhaled.

Yes, the study says a surgery mask stops/slows spittle. Yes some spittle will fall just 3 feet away..

Maybe if I had a Paul Harvey The rest of the story line people would hear about the vapor nature of expelled virus. But, too many are focused on one mental model - spittle transmission. They cling to this as the ONLY thing that needs to be considered. :-/

The article is very scientific and all, but doesn't the set of graphs in the attached article shed some doubt on the conclusion that masks are effective? Should we rely on equations and theory, or raw data?

https://swprs.org/face-masks-evidence/#jp-carousel-38978

Yes it does. But it slices and dices the relative fluid (particle) dynamics. Which is fun for some.

Exactly.

I will note that people like the solidarity of mask wearing. - oh look, everyone else is miserable behind a mask too. Then some guy walks along with a bare face and resentment and rage fills the masked minion.

Like Cramer, not wanting to wear the Rrrribbon.

<iframe width="716" height="540" src="https://www.youtube.com/embed/3iV8X8ubGCc" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

I am the only scientist who has posted here.

as the OP noted silk is interesting

LOL

Hey Mr Scientist... Remember when you railed on about how the China virus could not survive without being in some sort of liquid? Yeah, fun times.

island thinks he's an expert in face masks. :rolleyes:

Speaking for what I think eh?

Sounds like Paul Woodbury thinks he's an expert on what island911 thinks.

So Paul, what am I thinking right now? - besides the obvious that you added nothing to this thread but a stupid slight.

:rolleyes: indeed.

Did I touch a nerve? SmileWavy

You chapped his ass. Like a boss.

For Island:

http://forums.pelicanparts.com/uploa...1606695154.jpg

Just curious, what sort of scientist are you? I guess I'm the only other scientist here. (Geologist)

only a fool would misinterpret what I actually said - that isn't far off tho