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graph theory

New Proof Shows That ‘Expander’ Graphs Synchronize

By Leila Sloman
July 24, 2023
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The proof establishes new conditions that cause connected oscillators to sway in sync.

Quantized Academy

Math That Lets You Think Locally but Act Globally

By Patrick Honner
July 21, 2023
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Knowing a little about the local connections on flight maps and other networks can reveal a lot about a system’s global structure.

Illustration of a lady walking through a hedge maze, with a man sweeping up her footprints.
quantum computing

To Move Fast, Quantum Maze Solvers Must Forget the Past

By Ben Brubaker
July 20, 2023
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Quantum algorithms can find their way out of mazes exponentially faster than classical ones, at the cost of forgetting the path they took. A new result suggests that the trade-off may be inevitable.

geometry

Mathematicians Solve Long-Standing Coloring Problem

By Anna Kramer
July 19, 2023
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A new result shows how much of the plane can be colored by points that are never exactly one unit apart.

geophysics

How Quantum Physicists Explained Earth's Weather Patterns

By Katie McCormick
July 18, 2023
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By treating Earth as a topological insulator — a state of quantum matter — physicists found a powerful explanation for the movements of the planet’s air and seas.

Top of the illustration shows vegetation and half of a chloroplast releasing dots of oxygen. Bottom shows half of a cell in darkness releasing similar dots.
microbiology

Underground Cells Make ‘Dark Oxygen’ Without Light

By Saugat Bolakhe
July 17, 2023
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In some deep subterranean aquifers, cells have a chemical trick for making oxygen that could sustain whole underground ecosystems.

algorithms

How to Build a Big Prime Number

By Stephen Ornes
July 13, 2023
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A new algorithm brings together the advantages of randomness and deterministic processes to reliably construct large prime numbers.

The Joy of Why

Can Math and Physics Save an Arrhythmic Heart?

By Steven Strogatz
July 12, 2023
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Abnormal waves of electrical activity can cause a heart’s muscle cells to beat out of sync. In this episode, Flavio Fenton, an expert in cardiac dynamics, talks with Steve Strogatz about ways to treat heart arrhythmias without resorting to painful defibrillators.

Panoramic view of Pan de Azúcar National Park in Chile’s Atacama Desert, showing fog, hills in the background and a solitary human figure in the distance at center. The desert floor is mottled.
microbiology

In a Fierce Desert, Microbe ‘Crusts’ Show How Life Tamed the Land

By Zack Savitsky
July 12, 2023
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Extreme microorganisms carpeting the Atacama Desert in Chile illuminate how life might have first taken hold on Earth’s surface.


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