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Study Indicates That Humidity in Breath Makes Cotton Masks More Effective at Slowing Spread of COVID-19


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Study Indicates That Humidity in Breath Makes Cotton Masks More Effective at Slowing Spread of COVID-19
A swatch of cotton fabric that has been exposed to high humidity typical of a person’s exhaled breath (left) filters out more droplets than a swatch of cotton fabric that has not been exposed to high humidity (right). Credit: NIST
Researchers have come up with a better way to test which fabrics work best for masks that are meant to slow the spread of COVID-19. By testing those fabrics under conditions that mimic the humidity of a person’s breath, the researchers have obtained measurements that more accurately reflect how the fabrics perform when worn by a living, breathing person. ....

Christopher Zangmeister , Centers For Disease , National Institute Of Standards , Ep Vicenzi Smithsonian Museum Conservation Institute , National Institute For Occupational Safety , Smithsonian Museum Conservation Institute , National Institute , Museum Conservation Institute , Disease Control , Occupational Safety , Filtration Properties , Face Masks , Covid 19 , மையங்கள் க்கு நோய் , தேசிய நிறுவனம் ஆஃப் தரநிலைகள் , தேசிய நிறுவனம் க்கு தொழில் பாதுகாப்பு , ஸ்மித்சோனியன் அருங்காட்சியகம் பாதுகாப்பு நிறுவனம் , தேசிய நிறுவனம் , அருங்காட்சியகம் பாதுகாப்பு நிறுவனம் , நோய் கட்டுப்பாடு , தொழில் பாதுகாப்பு , வடிகட்டுதல் ப்ராபர்டீஸ் , முகம் முகமூடிகள் ,

Physicists Just Found 4 New Subatomic Particles That May Test The Laws of Nature


Physicists Just Found 4 New Subatomic Particles That May Test The Laws of Nature
PATRICK KOPPENBURG, THE CONVERSATION
5 MARCH 2021
This month is a time to celebrate. CERN has just announced the discovery of four brand new particles at the Large Hadron Collider (LHC) in Geneva.
This means that the LHC has now found a total of 59 new particles, in addition to the Nobel prize-winning Higgs boson, since it started colliding protons – particles that make up the atomic nucleus along with neutrons – in 2009.
 
Excitingly, while some of these new particles were expected based on our established theories, some were altogether more surprising. ....

Large Hadron Collider , Standard Model , Amp Quot , பெரியது ஹாட்ரான் மோதல் , தரநிலை மாதிரி ,

Scientists investigate microdamage in aircraft glass

TSU radiophysicists proposed to study aviation glass using the holographic method of particle registration. It detects and fixes microdamage without. ....

Nikolai Yudin , Viktor Dyomin , Laboratory Of Radiophysical , Optical Methods , Tomsk State University , ஒளியியல் முறைகள் , விமான போக்குவரத்து ,