Dream behavior can predict brain disease, why star cores spin slowly, roots of human language in hand signs, and more!

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January 24, 2023

Neuroscience

Acting Out Dreams Predicts Parkinson's and Other Brain Diseases

Enacted dreams could be an early sign of Parkinson's disease

By Diana Kwon

Astronomy

Star Cores Spin Surprisingly Slowly--Scientists Now Think They Know Why

Scientists find that magnetic fields and turbulence amplify each other inside stars' hidden layers, slowing down the stellar cores' spin

By Stephanie Pappas

Cognition

Humans Can Correctly Guess the Meaning of Chimp Gestures

A new finding that humans can correctly interpret the gestures of chimps and bonobos adds to growing research that suggests that human language may have evolved from a dictionary of hand and body signals

By Ingrid Wickelgren

Energy

Government Researchers Aim for Better--And Cheaper--Batteries

Department of Energy researchers are partnering with battery manufacturers to help them find new ways to make cheap batteries that can store a lot of energy

Astrophysics

All the Gold in the Universe Was (Likely) Created This Way

For a long time, no one knew how "heavy metals" formed—or showed up on Earth. Now some new evidence finally points the way to an answer.

By Jason Drakeford,Clara Moskowitz,Jeffery DelViscio

Engineering

Mighty Morphin' Turtle Robot Goes Amphibious by Shifting Leg Shape

A turtle-inspired robot can morph its legs to move from land to water and back

By Sophie Bushwick

Engineering

Flavor-Enhancing Spoons and Chopsticks Could Make Food Taste Better

New types of cutlery can enhance flavors such as sweetness or saltiness for a more satisfying meal

By Saugat Bolakhe

Arts

Poem: 'Weight'

Science in meter and verse

By Barbara Ungar
FROM THE STORE

New Frontiers in Alzheimer's

Until recently, one idea has dominated research in treating Alzheimer's disease: the amyloid hypothesis. Those therapies have repeatedly fallen short, and in this eBook we take a look at where that hypothesis stands today. We examine recent research into the spectrum of disease causes, including inflammation and immune dysfunction; cutting-edge treatments, including deep-brain stimulation and magnetic resonance–guided focused ultrasound; as well as lifestyle interventions that can help protect from disease.

Buy Now
FROM THE ARCHIVE

The COVID-19 Pandemic Is Changing Our Dreams

Anxiety about social distancing and infection is altering how much we dream and the nature of our dreams themselves

QUOTE OF THE DAY

"Anybody who has any symptom, even if it's not one of the usual ones, could get a head start on dealing with the progressive nature of the disease."

Alan Alda, actor.

WHAT WE'RE READING

Device Transmits Radio Waves with Almost No Power – Without Violating the Laws of Physics

A new ultra-low-power method of communication at first glance seems to violate the laws of physics.

By Joshua R. Smith and Zerina Kapetanovic | The Conversation | Jan. 24, 2023

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