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time

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

How the Brain Creates a Timeline of the Past

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

Multimedia

Quanta Writers and Editors Discuss Trends in Science and Math

On November 16, 2018, more than 200 readers joined writers and editors from Quanta Magazine for a wide-ranging panel discussion that examined the newest ideas in fundamental physics, biology and mathematics research.

Illustration for thermodynamics
Abstractions blog

Quantum Correlations Reverse Thermodynamic Arrow of Time

A recent experiment shows how quantum mechanics can make heat flow from a cold body to a hot one, an apparent (though not real) violation of the second law of thermodynamics.

Tim Maudlin
Q&A

A Defense of the Reality of Time

Time isn’t just another dimension, argues Tim Maudlin. To make his case, he’s had to reinvent geometry.

Illustration: black, numbered cats crossing a calendar. An extra "13" lurks in the background.
insights puzzle

Solution: ‘Friday the 13th’

There’s more than one good way to bring order to our unruly, seemingly arbitrary calendar.

Illustration: black, numbered cats crossing a calendar. An extra "13" lurks in the background.
insights puzzle

Is It Friday the 13th Again?

How our society defines years, months and weeks can seem frustratingly arbitrary. Can you bring order to our unruly calendar?

Warped time. Olena Shmahalo/Quanta Magazine
Abstractions blog

Quantum Gravity’s Time Problem

The effort to unify quantum mechanics and general relativity means reconciling totally different notions of time.

insights puzzle

Solution: ‘Time Through an LCD Display’

Insights about time’s arrow from a liquid crystal universe.

insights puzzle

Seeing Time Through a Liquid Crystal Display

What insights can an LCD display give us about time’s arrow?