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Archive for the ‘physics’ category

Jan 31, 2023

DeepMind’s ChatGPT-Like AI Writes Amazing Screenplays!

Posted by in categories: entertainment, physics, robotics/AI

❤️ Check out Weights & Biases and sign up for a free demo here: https://wandb.com/papers.

📝 The paper “Co-Writing Screenplays and Theatre Scripts with Language Models: An Evaluation by Industry Professionals” is available here:
https://deepmind.github.io/dramatron/details.html.

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Jan 30, 2023

A computer scientist explains why even AI has computational limits

Posted by in categories: information science, mathematics, physics, robotics/AI

There are two aspects to a computer’s power: the number of operations its hardware can execute per second and the efficiency of the algorithms it runs. The hardware speed is limited by the laws of physics. Algorithms—basically sets of instructions —are written by humans and translated into a sequence of operations that computer hardware can execute. Even if a computer’s speed could reach the physical limit, computational hurdles remain due to the limits of algorithms.

These hurdles include problems that are impossible for computers to solve and problems that are theoretically solvable but in practice are beyond the capabilities of even the most powerful versions of today’s computers imaginable. Mathematicians and computer scientists attempt to determine whether a problem is solvable by trying them out on an imaginary machine.

Jan 30, 2023

Rethinking Relativity: A Surge of Cosmological Inconsistencies Prompts a Reevaluation of Einstein’s Theories

Posted by in categories: computing, physics

After a century of Einsteinian relativistic physics gone unchallenged, Computational Physics assume this demonstrable challenge.

Jan 29, 2023

First observation of de Broglie-Mackinnon wave packets achieved by exploiting loophole in 1980s theorem

Posted by in category: physics

University of Central Florida College of Optics and Photonics researchers achieved the first observation of de Broglie-Mackinnon wave packets by exploiting a loophole in a 1980s-era laser physics theorem.

The by CREOL and Florida Photonics Center of Excellence professor Ayman Abouraddy and research assistant Layton Hall has been published in the journal Nature Physics.

Observation of optical de Broglie–Mackinnon wave packets highlights the team’s research using a class of pulsed laser beams they call space-time wave packets.

Jan 27, 2023

Cybernetic Theory: The Code of Reality & Our Future as Cybergods | Talk

Posted by in categories: cosmology, existential risks, physics, robotics/AI, singularity, transhumanism, virtual reality

CYBERNETIC THEORY: THE CODE OF REALITY & OUR FUTURE AS CYBERGODS: presenting my published works in a recent talk. Topics include evolutionary cybernetics, computational physics, consciousness, philosophy of mind, cybernetic theory, Omega Point cosmology, physics of time, simulation theory, Global Mind, AGI, VR, Metaverse, Cybernetic Singularity, transhumanism, posthumanism, cybernetic immortality, synthetic telepathy, mind-uploading, neurotechnologies, Fermi Paradox, Dark Matter, Dark Energy, the Argument for Cybertheism, and more.

The main 45-minute slide presentation is followed by a 15-minute Q&A session. This presentation is in Russian with slides and subtitles in English.

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Jan 26, 2023

Green comet’s new “anti-tail” seemingly breaks the laws of physics

Posted by in categories: cosmology, physics

Astrophotographers spotted what looks like a third tail flowing in front of, instead of behind, the glowing comet.

The green comet C/2022 E3 (ZTF), which last flew by Earth 50,000 years ago when Neanderthals still coexisted with humans, has been gradually making its way across the night sky over the last few days.

What’s more, as per a LiveScience report, this “anti-tail” appears to be flowing in the wrong direction and is, therefore, seemingly breaking the laws of physics.

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Jan 24, 2023

Joelle Elbez-Uzan — Head, Nuclear Safety Office — DEMO Fusion Reactor — EUROfusion

Posted by in categories: nuclear energy, physics, security

Is the Head, Nuclear Safety Office, overseeing the development of the DEMO Fusion Reactor (https://euro-fusion.org/programme/demo/), at EUROfusion.

DEMO (DEMOnstration Power Plant) refers to a proposed class of nuclear fusion experimental reactors that are intended to demonstrate the net production of electric power from nuclear fusion.

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Jan 23, 2023

New Research Could Link Evolution of Complex Life to Genetic “Dark Matter”

Posted by in categories: biological, chemistry, cosmology, evolution, genetics, neuroscience, physics

Octopuses have fascinated scientists and the public with their remarkable intelligence, from using tools to engaging in creative play, problem-solving, and even escaping from aquariums. Now, their cognitive abilities may provide significant insight into understanding the evolution of complex life and cognition, including the human brain.

An international team of researchers from Dartmouth College and the Max Delbrück Center (MDC) in Germany has published a study in the journal Science Advances.

<em>Science Advances</em> is a peer-reviewed, open-access scientific journal that is published by the American Association for the Advancement of Science (AAAS). It was launched in 2015 and covers a wide range of topics in the natural sciences, including biology, chemistry, earth and environmental sciences, materials science, and physics.

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Jan 20, 2023

Ripples in fabric of universe may reveal start of time

Posted by in categories: cosmology, nuclear energy, physics

Scientists have advanced in discovering how to use ripples in space-time known as gravitational waves to peer back to the beginning of everything we know. The researchers say they can better understand the state of the cosmos shortly after the Big Bang by learning how these ripples in the fabric of the universe flow through planets and the gas between the galaxies.

“We can’t see the directly, but maybe we can see it indirectly if we look at how gravitational waves from that time have affected matter and radiation that we can observe today,” said Deepen Garg, lead author of a paper reporting the results in the Journal of Cosmology and Astroparticle Physics. Garg is a graduate student in the Princeton Program in Plasma Physics, which is based at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL).

Garg and his advisor Ilya Dodin, who is affiliated with both Princeton University and PPPL, adapted this technique from their research into , the process powering the sun and stars that scientists are developing to create electricity on Earth without emitting greenhouse gases or producing long-lived radioactive waste. Fusion scientists calculate how move through plasma, the soup of electrons and that fuels fusion facilities known as tokamaks and stellarators.

Jan 19, 2023

Researchers gain deeper understanding of mechanism behind superconductors

Posted by in categories: energy, physics

Physicists at Leipzig University have once again gained a deeper understanding of the mechanism behind superconductors. This brings the research group led by Professor Jürgen Haase one step closer to their goal of developing the foundations for a theory for superconductors that would allow current to flow without resistance and without energy loss. The researchers found that in superconducting copper-oxygen bonds, called cuprates, there must be a very specific charge distribution between the copper and the oxygen, even under pressure.

This confirmed their own findings from 2016, when Haase and his team developed an experimental method based on that can measure changes that are relevant to superconductivity in the structure of materials. They were the first team in the world to identify a measurable material parameter that predicts the maximum possible —a condition required to achieve superconductivity at . Now they have discovered that cuprates, which under pressure enhance superconductivity, follow the charge distribution predicted in 2016. The researchers have published their new findings in the journal PNAS.

“The fact that the transition temperature of cuprates can be enhanced under pressure has puzzled researchers for 30 years. But until now we didn’t know which mechanism was responsible for this,” Haase said. He and his colleagues at the Felix Bloch Institute for Solid State Physics have now come a great deal closer to understanding the actual mechanism in these materials.

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