Friday, March 24, 2023

Wormhole Experiment Called Into Question

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Wormhole Experiment Called Into Question

By CHARLIE WOOD

Last fall, a team of physicists announced that they had teleported a qubit through a holographic wormhole in a quantum computer. Now another group suggests that's not quite what happened.

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COMBINATORICS

 

Surprise Computer Science Proof Stuns Mathematicians

By LEILA SLOMAN

Two computer scientists have blown past decades of incremental progress on a key problem in arithmetic progression.

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Related: 
Coloring by Numbers Reveals
Arithmetic Patterns in Fractions

By Leila Sloman

QUANTIZED ACADEMY

 

The Symmetry That Makes Solving Equations Easy

By PATRICK HONNER

Learn why the quadratic formula works and why quadratics are easier to solve than cubics.

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Related: 
The Sordid Past
of the Cubic Formula

By David S. Richeson (2022)

THE JOY OF WHY

 

Is There Math Beyond the Equal Sign?

Podcast hosted by STEVEN STROGATZ

Can mathematics handle things that are essentially the same without being exactly equal? Category theorist Eugenia Cheng and host Steven Strogatz discuss the power and pleasures of abstraction.

Listen to the podcast

Read the transcript

DINOSAURS

 

Dinosaur Bone Study Reveals That Not All Giants Grew Alike

By ANNA GIBBS

A survey of prehistoric bones reveals that T. rex and some of its cousins had more than one way to reach enormous sizes. Evolution may have preserved that variation in modern animals too.


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TURING AWARD

 

Bob Metcalfe, Ethernet Pioneer, Wins Turing Award

By BEN BRUBAKER

The American researcher was recognized for his central role in inventing, standardizing and commercializing the ubiquitous networking technology.

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Related: 
To Boldly Go Where No Internet
Protocol Has Gone Before

By Susan D'Agostino (2020)

Around the Web

Bye Bye Bias
Artificial intelligence is notoriously plagued by bias. For MIT Technology Review, Niall Firth reports on research that suggests a surprisingly simple solution: Ask the AI to be unbiased. Biases in AI often reflect the biases — unconscious and otherwise — in our society. In 2020, Natalie Wolchover wrote for Quanta about how AI does what it's told and why that's often a problem.


Brain Stem
Researchers have traced how different types of stem cells take on specialized roles in the brain, reports Heidi Ledford for Nature. They injected stem cells into the brains of mice and watched as the human brain tissue grew and differentiated. Integrating human brain tissue into the brains of mice and rats is a young technology that enables a host of neurological experiments. In 2022, Allison Whitten wrote for Quanta about how implanted brain "organoids" could be used to study neurodevelopment.
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Scientist Pankaj

Today in Science: Humans think unbelievably slowly

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