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Archive for the ‘cosmology’ category: Page 132

Sep 7, 2022

“Unlimited Possibilities” — New Law of Physics Could Predict Genetic Mutations

Posted by in categories: biological, computing, cosmology, genetics, information science, mathematics, physics

According to a University of Portsmouth study, a new physics law could allow for the early prediction of genetic mutations.

The study discovers that the second law of information dynamics, or “infodynamics,” behaves differently from the second law of thermodynamics. This finding might have major implications for how genomic research, evolutionary biology, computing, big data, physics, and cosmology develop in the future.

Lead author Dr. Melvin Vopson is from the University’s School of Mathematics and Physics. He states “In physics, there are laws that govern everything that happens in the universe, for example how objects move, how energy flows, and so on. Everything is based on the laws of physics. One of the most powerful laws is the second law of thermodynamics, which establishes that entropy – a measure of disorder in an isolated system – can only increase or stay the same, but it will never decrease.”

Sep 6, 2022

These Experiments Could Prove Einstein Wrong

Posted by in categories: cosmology, mathematics, physics

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Einstein’s theory of general relativity has made countless correct predictions and yet physicists are constantly trying to prove it wrong. Why? What would it be good for to prove Einstein wrong? And how could it be done? In this video I go through the most promising experiments that physicists currently work on which could prove Einstein wrong.

Continue reading “These Experiments Could Prove Einstein Wrong” »

Sep 5, 2022

How Physicists Cracked a Black Hole Paradox

Posted by in categories: cosmology, quantum physics

Quantum entanglement and spacetime wormholes helped to solve a long-standing quandary.

By George Musser

By:

Sep 4, 2022

Is Dark Energy a Uniform Force Across Space and Time? (Weekend Feature)

Posted by in categories: cosmology, materials

Astronomers may soon have the answer to what is perhaps the greatest mystery of modern science –is dark energy a uniform force across space and time, or has its strength evolved over eons?

The universe is not only expanding – it is accelerating outward, driven by what is commonly referred to as “dark energy.” The term is a poetic analogy to the label for dark matter, the mysterious material that dominates the matter in the Universe and that really is dark because it does not radiate light (it reveals itself via its gravitational influence on galaxies).

Sep 3, 2022

5 Consensus Ideas in Astronomy That Might Soon be Overturned

Posted by in category: cosmology

From black holes to dark energy to chances for life in the Universe, our cosmic journey to understand it all is just getting started.

Sep 3, 2022

The Milky Way’s supermassive black hole erupted with a violent flare

Posted by in category: cosmology

Our own Milky Way has a relatively calm center, but this wasn’t always the case — just a few million years ago, the galaxy’s black hole flared briefly.

Sep 2, 2022

How The Penrose Singularity Theorem Predicts The End of Space Time

Posted by in categories: cosmology, physics, singularity

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The Nobel prize in physics this year went to black holes. Generally speaking. Specifically, it was shared by the astronomers who revealed to us the Milky Way’s central black hole and by Roger Penrose, who proved that in general relativity, every black hole contains a place of infinite gravity — a singularity. But the true impact of Penrose’s singularity theorem would is much deeper — it leads us to the limits Einstein’s great theory and to the origin of the universe.

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Sep 1, 2022

Thermodynamics, Information & Consciousness in a Quantum Multiverse (Max Tegmark)

Posted by in categories: cosmology, neuroscience, quantum physics

Lecture from the mini-series “Cosmology & Quantum Foundations” from the “Philosophy of Cosmology” project. A University of Oxford and Cambridge Collaboration.

Sep 1, 2022

Dark Matter: The Situation has Changed

Posted by in categories: cosmology, physics

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Today I tell you how my opinion about dark matter has changed an why. Is modified gravity better or worse? What evidence speaks for one side or the other, and is the case really as clear-cut as many astrophysicists claim?

Continue reading “Dark Matter: The Situation has Changed” »

Sep 1, 2022

Using magnetic and electric fields to emulate black hole and stellar accretion disks

Posted by in categories: computing, cosmology, mathematics, physics

A team of researchers at the Sorbonne University of Paris reports a new way to emulate black hole and stellar accretion disks. In their paper published in the journal Physical Review Letters, the group describes using magnetic and electric fields to create a rotating disk made of liquid metal to emulate the behavior of material surrounding black holes and stars, which leads to the development of accretion disks.

Prior research has shown that massive objects have a gravitational reach that pulls in gas, dust and other material. And since such massive objects tend to spin, the material they pull in tends to swirl around the object as it moves closer. When that happens, gravity exerted by materials in the swirling mass tends to coalesce, resulting in an . Astrophysicists have been studying the dynamics of accretion disks for many years but have not been able to figure out how angular momentum is transferred from the inner parts of a given accretion disk to its outer parts as material in the disk moves ever closer to the central object.

Methods used to study accretion disks have involved the development of math formulas, and real-world models using liquids that swirl like eddies. None of the approaches has proven suitable, however, which has led researchers to look for new models. In this new effort, the researchers developed a method to generate an accretion disk made of bits spinning in the air.