#general-relativity

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fromNature
5 days ago

Does gravity produce quantum weirdness? Proposal divides physicists

The nature of gravity - and whether it can be reconciled with quantum mechanics - is one of the biggest mysteries in physics. Most researchers think that at a fundamental level, all phenomena follow the principles of quantum physics, but those principles do not seem to be compatible with the accepted theory of gravity. For years, researchers have been proposing experiments to show whether gravity could produce a phenomenon known as quantum entanglement.
Science
fromBig Think
5 days ago

We still don't know how "hot" the hot Big Bang was

This tremendously successful theory gave us everything from gravitational waves to black holes based on one profound insight: that the fabric of spacetime itself would evolve, curve, and even ripple based on the properties and behavior of the matter and energy within it. When we applied Einstein's equations to the entire Universe as a whole, along with the idea that the Universe was filled nearly uniformly with matter and energy on the largest scales, we wound up with an expanding Universe.
Science
#black-holes
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fromWIRED
6 months ago

Scientists Are Mapping the Bizarre, Chaotic Spacetime Inside Black Holes

Singularities challenge our understanding of space, time, and gravity, and simplifications in Einstein's equations help explore these complex phenomena.
OMG science
fromWIRED
6 months ago

Scientists Are Mapping the Bizarre, Chaotic Spacetime Inside Black Holes

Singularities challenge our understanding of space, time, and gravity, and simplifications in Einstein's equations help explore these complex phenomena.
Science
fromBig Think
2 months ago

LIGO, facing threats of closure, more than doubles its black hole haul

Gravitational wave astronomy matured since 2015 with LIGO detecting hundreds of black hole mergers, yet its future risks abrupt termination without decisive action.
Science
fromWIRED
3 months ago

The Hunt for a Fundamental Theory of Quantum Gravity

Singularities in black holes and the Big Bang break current theories of gravity, indicating a need for a new fundamental theory.
#cosmology
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fromBig Think
4 months ago

How to understand the Universe's the most important equation

Cosmology integrates subatomic particles and cosmic structures, showcasing the universe's evolution through Einstein's theories of General Relativity and the Friedmann equation.
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fromMail Online
4 months ago

What could go wrong? Scientists create world's first black hole BOMB

The world's first black hole bomb, a safe lab model, amplifies energy using mirrors and demonstrates superradiance principles from black hole physics.
fromwww.npr.org
5 months ago

Why this physicist says we shouldn't write off wormholes

Ron Gamble describes wormholes as a subway tube connecting distant points in space-time, representing a theoretical concept influenced by the curvature of space and gravity.
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OMG science
fromBig Think
5 months ago

Ask Ethan: Is dark energy just leftover momentum from the Big Bang?

Dark energy dominates the expansion of the Universe, comprising about 70% of it, while traditional matter accounts for roughly 30%.
OMG science
fromBig Think
6 months ago

Why does physics break down at the Planck scale?

The laws of physics remain consistent across all times and locations despite complex interactions and limitations at the Planck scale.
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