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space-time

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Illustration of the earth warping space-time, surrounded by small gears and galaxies.
Quantized Columns

How to Think About Relativity

By Sean Carroll
November 14, 2022
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Albert Einstein’s ideas about space-time aren’t exactly intuitive, and they aren’t exactly Einstein’s, either.

Illustration of planets and other objects floating above the deformable sheet of space-time.
The Joy of Why

Where Do Space, Time and Gravity Come From?

By Steven Strogatz
May 4, 2022
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Einstein’s description of curved space-time doesn’t easily mesh with a universe made up of quantum wavefunctions. Theoretical physicist Sean Carroll discusses the quest for quantum gravity with host Steven Strogatz.

A man sits at a table in the middle of a wood-paneled library, perusing a large book.
Q&A

Pondering the Bits That Build Space-Time and Brains

By Charlie Wood
April 20, 2022
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Vijay Balasubramanian investigates whether the fabric of the universe might be built from information, and what it means that physicists can even ask such a question.

fundamental physics

Gravitational Waves Should Permanently Distort Space-Time

By Katie McCormick
December 8, 2021
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The “gravitational memory effect” predicts that a passing gravitational wave should forever alter the structure of space-time. Physicists have linked the phenomenon to fundamental cosmic symmetries and a potential solution to the black hole information paradox.

quantum gravity

One Lab’s Quest to Build Space-Time Out of Quantum Particles

By Adam Becker
September 7, 2021
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For over two decades, physicists have pondered how the fabric of space-time may emerge from some kind of quantum entanglement. In Monika Schleier-Smith’s lab at Stanford University, the thought experiment is becoming real.

Animation of black hole formation.
mathematical physics

New Math Proves That a Special Kind of Space-Time Is Unstable

By Steve Nadis
May 11, 2020
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Einstein’s equations describe three canonical configurations of space-time. Now one of these three — important in the study of quantum gravity — has been shown to be inherently unstable.

theoretical physics

Does Time Really Flow? New Clues Come From a Century-Old Approach to Math.

By Natalie Wolchover
April 7, 2020
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The laws of physics imply that the passage of time is an illusion. To avoid this conclusion, we might have to rethink the reality of infinitely precise numbers.

Abstractions blog

How (Relatively) Simple Symmetries Underlie Our Expanding Universe

By Natalie Wolchover
July 15, 2019
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Although Einstein’s theory of space-time seems more complicated than Newtonian physics, it greatly simplified the mathematical description of the universe.

Art for "How Our Universe Could Emerge as a Hologram"
Abstractions blog

How Our Universe Could Emerge as a Hologram

By Natalie Wolchover
February 21, 2019
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Physicists have devised a holographic model of “de Sitter space,” the term for a universe like ours, that could give us new clues about the origin of space and time.


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