Gravity experiments on the kitchen table: Why a tiny, tiny measurement may be a big leap forward for physics
Just over a week ago, European physicists announced they had measured the strength of gravity on the smallest scale ever.
Just over a week ago, European physicists announced they had measured the strength of gravity on the smallest scale ever.
General Physics
Mar 4, 2024
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Scientists are a step closer to unraveling the mysterious forces of the universe after working out how to measure gravity on a microscopic level.
Quantum Physics
Feb 23, 2024
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A quarter century ago, physicist Juan Maldacena proposed the AdS/CFT correspondence, an intriguing holographic connection between gravity in a three-dimensional universe and quantum physics on the universe's two-dimensional ...
Astronomy
Dec 24, 2023
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Attempts to turn string theory into a workable theory of nature have led to the potential conclusion that our universe is a hologram—that what we perceive as three spatial dimensions is actually composed of only two. The ...
General Physics
Dec 21, 2023
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As weird as it might sound, black holes appear to be holograms.
Astronomy
Dec 19, 2023
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A radical theory that consistently unifies gravity and quantum mechanics while preserving Einstein's classical concept of spacetime has been announced in two papers published simultaneously by UCL (University College London) ...
General Physics
Dec 4, 2023
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While physics tells us that information can neither be created nor destroyed (if information could be created or destroyed, then the entire raison d'etre of physics, that is to predict future events or identify the causes ...
Astronomy
Nov 16, 2023
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Einstein's theory of gravity—general relativity—has been very successful for more than a century. However, it has theoretical shortcomings. This is not surprising: the theory predicts its own failure at spacetime singularities ...
General Physics
Sep 25, 2023
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Our ideas about the universe are based on a century-old simplification known as the cosmological principle. It suggests that when averaged on large scales, the Cosmos is homogeneous and matter is distributed evenly throughout.
Astronomy
Jun 29, 2023
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Theoretical physicists have long been trying to devise a complete theory of gravity that would also account for quantum mechanics phenomena, as existing models do not. Such a theory could collectively explain the many intricate ...