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Q&A

The Physicist Who Glues Together Universes

By Charlie Wood
May 25, 2023
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Renate Loll has helped pioneer a radically new approach to quantum gravity. She assumes that the fabric of space-time is a blend of all possible fabrics, and she has developed the computational tools needed to calculate the far-reaching implications of that assumption.

A person stares at a thought bubble.
cognition

Is It Real or Imagined? How Your Brain Tells the Difference.

By Yasemin Saplakoglu
May 24, 2023
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New experiments show that the brain distinguishes between perceived and imagined mental images by checking whether they cross a “reality threshold.”

Quantized Academy

Math Patterns That Go On Forever but Never Repeat

By Patrick Honner
May 23, 2023
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Simple math can help explain the complexities of the newly discovered aperiodic monotile.

machine learning

Some Neural Networks Learn Language Like Humans

By Steve Nadis
May 22, 2023
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Researchers uncover striking parallels in the ways that humans and machine learning models acquire language skills.

information theory

Secret Messages Can Hide in AI-Generated Media

By Stephen Ornes
May 18, 2023
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In steganography, an ordinary message masks the presence of a secret communication. Humans can never do it perfectly, but a new study shows it’s possible for machines.

The Joy of Why

Are There Reasons to Believe in a Multiverse?

By Steven Strogatz
May 17, 2023
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Several areas of physics suggest reasons to think that unobservable universes with different natural laws could lie beyond ours. The theoretical physicist David Kaplan talks with Steven Strogatz about the mysteries that a multiverse would solve.

An illustrated human figure with memories of a blue flower looks out at the world and is more attuned to seeing other blue flowers.
memory

Memories Help Brains Recognize New Events Worth Remembering

By Yasemin Saplakoglu
May 17, 2023
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Memories may affect how well the brain will learn about future events by shifting our perceptions of the world.

nonlinear dynamics

New Proof Finds the ‘Ultimate Instability’ in a Solar System Model

By Jordana Cepelewicz
May 16, 2023
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For the first time, mathematicians have proved that planetary orbits in a solar system will always be unstable.

solar physics

The Tiny Physics Behind Immense Cosmic Eruptions

By Zack Savitsky
May 15, 2023
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A new theory describes how particle interactions fuel fast magnetic reconnection, the process behind solar flares and other astrophysical jets.


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