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Art for "Mysterious Quantum Rule Reconstructed from Scratch"
quantum physics

Mysterious Quantum Rule Reconstructed From Scratch

By Philip Ball
February 13, 2019
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The new work promises to give researchers a better grip on the core mystery of quantum mechanics.

Art for "How the Brain Creates a Timeline of the Past"
neuroscience

How the Brain Creates a Timeline of the Past

By Jordana Cepelewicz
February 12, 2019
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The brain can’t directly encode the passage of time, but recent work hints at a workaround for putting timestamps on memories of events.

Art for "Smaller Is Better: Why Finite Number Systems Pack More Punch"
Abstractions blog

Smaller Is Better: Why Finite Number Systems Pack More Punch

By Kevin Hartnett
February 11, 2019
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Recent progress on the “sum product” problem recalls a celebrated mathematical result that revealed the power of miniature number systems.

A row of skulls ending with homo sapiens, foreground, found at The Smithsonian Museum of Natural History’s Hall of Human Origins.
Abstractions blog

Artificial Intelligence Finds Ancient ‘Ghosts’ in Modern DNA

By Jordana Cepelewicz
February 7, 2019
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With the help of deep learning techniques, paleoanthropologists find evidence of long-lost branches on the human family tree.

number theory

How a Strange Grid Reveals Hidden Connections Between Simple Numbers

By Kevin Hartnett
February 6, 2019
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A graduate student has helped illuminate a long-suspected connection between addition and multiplication.

Art for "Fragile DNA Enables New Adaptations to Evolve Quickly"
evolution

Fragile DNA Enables New Adaptations to Evolve Quickly

By Viviane Callier
February 5, 2019
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If highly repetitive gene-regulating sequences in DNA are easily lost, that may explain why some adaptations evolve quickly and repeatedly.

Photo of Priya Natarajan
Q&A

An Astrophysicist Who Maps the Universe’s Terra Incognita

By Natalie Wolchover
February 4, 2019
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Priyamvada Natarajan has pioneered the mapping and modeling of the universe’s invisible contents, especially dark matter and supermassive black holes.

artificial intelligence

Foundations Built for a General Theory of Neural Networks

By Kevin Hartnett
January 31, 2019
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Neural networks can be as unpredictable as they are powerful. Now mathematicians are beginning to reveal how a neural network’s form will influence its function.

Photo of the female penis structure of the cave insect Neotrogla aurora.
Abstractions blog

Why Evolution Reversed These Insects’ Sex Organs

By Jordana Cepelewicz
January 30, 2019
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Among these cave insects, the females evolved to have penises — twice. The reasons challenge common assumptions about sex.


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