Friday, March 25, 2022

Why Do We Die Without Sleep?

Math and Science News from Quanta Magazine
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THE JOY OF WHY | ALL TOPICS

 

Why Do We Die Without Sleep?

By STEVEN STROGATZ

The reasons why sleep is so vital often hide in unexpected parts of the body, as host Steven Strogatz discovers in conversations with researchers Dragana Rogulja and Alex Keene.

Listen to the podcast | Read the transcript 

Related Video: 
Steven Strogatz's Secrets of Math Communication
Q&A filmed live at the Simons Foundation

NEUROSCIENCE

 

Brain Chemical Helps Signal to Neurons When to Start a Movement

By ALLISON WHITTEN

Work showing that dopamine helps trigger movement is the latest revelation about the power of neuromodulators.

Read the article

Related: 
New Brain Maps Can Predict Behaviors
by Monique Brouillette (2021)

ABEL PRIZE

 

Dennis Sullivan, Uniter of Topology and Chaos, Wins the Abel Prize

By JORDANA CEPELEWICZ

The American mathematician invented entire new ways to understand shapes and spaces.

Read the blog

Related: 
In Topology, When Are Two Shapes the Same?
by Kevin Hartnett (2021)

PARTICLE PHYSICS

 

A New Tool for Finding Dark Matter Digs Up Nothing

By THOMAS LEWTON

Physicists are devising clever new ways to exploit the extreme sensitivity of gravitational wave detectors like LIGO. But so far, they've seen no signs of exotica.

Read the blog


Related: 
The Search for Dark Matter
Is Dramatically Expanding

by Charlie Wood (2020)

QUANTIZED ACADEMY

 

What a Math Party Game Tells Us About Graph Theory

By PATRICK HONNER

Can we just shake on it? Play this simple math game with your friends to gain insights into some fundamental principles of graph theory.

Read the column


Related: 
Mathematicians Answer Old
Question About Odd Graphs

by Kevin Hartnett (2021)

Around the Web

Quantum Magnetic Migration
Birds navigate by "seeing" Earth's magnetic field. Peter J. Hore writes for Scientific American about his research into the quantum effects occurring in a bird's eye that enable this extra perception. Of course, quantum effects don't usually survive in warm, open environments. But in 2016 Jennifer Ouellette wrote for Quanta about a theory that entanglement can protect quantum particles from decoherence even in classical environments like a bird's eye.


Divine Distinctions
Some researchers theorize that what sets humans apart as a species is our capacity for abstract ideas like geometry and religion, reports Siobhan Roberts for The New York Times. Emulating our talent for symbolic reasoning could be a necessary step toward building truly intelligent AI. In a 2021 interview for Quanta, John Pavlus spoke with Melanie Mitchell, a computer scientist who teaches AI to think with analogies.
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