Friday, February 11, 2022

There Is Nothing Normal about One Million People Dead from COVID

Sponsored by PNAS
    
February 11, 2022

Policy

There Is Nothing Normal about One Million People Dead from COVID

Mass media and policy makers are pushing for a return to pre-COVID times while trying to normalize a staggering death toll

By Steven W. Thrasher

Quantum Physics

100 Years Ago, a Quantum Experiment Explained Why We Don't Fall through Our Chairs

The basic concept of quantum spin provides an understanding of a vast range of physical phenomena

By Davide Castelvecchi

Medicine

COVID Smell Loss and Long COVID Linked to Inflammation

Hamsters eating Cocoa Krispies reveal inflammation pathways from the olfactory system to the brain

By Robin Lloyd

Sponsor Content Provided by PNAS

PNAS Front Matter

Dive into today’s stories of science in PNAS Front Matter and explore cutting-edge scientific trends, opinion pieces, in-depth news features, and more. Explore now.

Engineering

Synthetic Enamel Could Make Teeth Stronger and Smarter

Scientists say that the new material is even more durable than real dental enamel

By Joanna Thompson

Quantum Physics

Turbulence Equations Discovered after Century-Long Quest

The formulas describe the complex behavior of a liquid when it meets a boundary

By Rachel Crowell

Policy

Facial Recognition Plan from IRS Raises Big Concerns

Government agencies are tapping a facial recognition company to prove you’re you

By James Hendler,The Conversation US

Electronics

New Charging Technique Puts Crumbling Batteries Back Together

The method could extend the lifetime of lithium-metal batteries by 30 percent, a new study suggests

By Sophie Bushwick

Ecology

Beaver Dams Help Wildfire-Ravaged Ecosystems Recover Long after Flames Subside

Dams mop up debris that would otherwise kill fish and other downstream wildlife, new observations suggest

By Isobel Whitcomb

Epidemiology

How Sneezing Hamsters Sparked a COVID Outbreak in Hong Kong

Hamsters are only the second species known to have spread SARS-CoV-2 to humans

By Smriti Mallapaty,Nature magazine

Astronomy

Possible Third Planet Spotted around Proxima Centauri, Our Sun's Nearest Neighbor Star

Proxima d might be only a quarter the mass of Earth, potentially making it one of the smallest worlds yet discovered beyond our solar system

By Mike Wall,SPACE.com

Defense

Cyberattack Misinformation Could Be Plan for Ukraine Invasion

A falsified video would be an update on the traditional use of propaganda campaigns during warfare

By Sophie Bushwick

Animals

Answering an Age Old Mystery: How do Birds Actually Fly?

Equally surprising is the fact that we still do not know how birds actually stay airborne.

By Emily Schwing | 06:14

Microbiology

Omicron's Surprising Anatomy Explains Why It Is Wildly Contagious

Specific mutations hide the COVID variant from the immune system and give it a new route into more cells

By Megan Scudellari
FROM THE STORE

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BRING SCIENCE HOME
Ears: Do Their Design, Size and Shape Matter?

Animal ears come in all shapes and sizes. How do these design details affect hearing? Make replicas and test them out on your own ears--see if they give you super hearing!  Credit: George Retseck

 

Have you ever been puzzled by a faint noise nearby, trying to discover what it is? Maybe you turned your head or cupped your hand behind your ear, hoping to hear the sound better. What if we could make this cup huge? Some animals know the answer. Many animals with exceptional hearing have big ears. A serval (a type of African wildcat), for example, can hear a mouse wiggling its way underground. And bats, which rely on sound to help navigate in the dark, have notoriously large ears on their small heads.

In this activity you will design and test your own earlike "hearing aids," looking at animal ears for clues about what helps improve the auditory sense.

Try This Experiment
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