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Archive for the ‘cosmology’ category: Page 123

Apr 24, 2023

Information Mastery Scale

Posted by in categories: cosmology, futurism

The possible levels of information mastery in the future of technology.


This series focus will be on the Information Mastery version of the Kardashev scale. In his book, The Cosmic Connection, Carl Segan proposed an alternative approach to the Kardashev Scale. He added another dimension to the original scale in addition to the pure energy usage that was first used to characterize different civilizations. Sagan believed that the amount of information available to a civilization should be an important criterion when trying to come up with a useful metric to measure different types of civilizations. So he assigned a lettered scale from A-Z where each letter meant an order of magnitude increase in the volume of information a civilization can hold. This information, he proposed, could be described in terms of bits, the number of yes or no statements concerning different civilizations, and the universe that such civilizations occupy.

Apr 23, 2023

The strongest evidence for a Universe before the Big Bang

Posted by in categories: cosmology, singularity

The Big Bang Theory is widely accepted as the explanation for the origin of the universe, but it doesn’t tell us what came before it. The idea of a universe before the Big Bang may seem impossible, but recent scientific discoveries suggest otherwise. In this article, we’ll explore the strongest evidence for a universe before the Big Bang.

The Big Bang Theory is the most widely accepted explanation for the origin of the universe. According to this theory, the universe began as a singularity, a point of infinite density and temperature. But what caused the Big Bang? And what came before it? These questions have puzzled scientists and philosophers for centuries.

Apr 23, 2023

2 newfound black holes are the closest ever to Earth and like nothing seen before

Posted by in category: cosmology

Astronomers have discovered two new black holes that are the closest ones to Earth known, and also represent something that astronomers have never seen before.

The black holes, designated Gaia BH1 and Gaia BH2, were discovered in data collected by the European Space Agency’s (ESA) Gaia spacecraft.

Apr 23, 2023

Is Reality an Illusion? — Professor Donald Hoffman, PhD

Posted by in categories: computing, cosmology, neuroscience

Get early access to our latest psychology lectures: http://bit.ly/new-talks5

If I have a visual experience that I describe as a red tomato a meter away, then I am inclined to believe that there is, in fact, a red tomato a meter away, even if I close my eyes. I believe that my perceptions are, in the normal case, veridical—that they accurately depict aspects of the real world. But is my belief supported by our best science? In particular: Does evolution by natural selection favor veridical perceptions? Many scientists and philosophers claim that it does. But this claim, though plausible, has not been properly tested. In this talk, I present a new theorem: Veridical perceptions are never more fit than non-veridical perceptions which are simply tuned to the relevant fitness functions. This entails that perception is not a window on reality; it is more like a desktop interface on your laptop. I discuss this interface theory of perception and its implications for one of the most puzzling unsolved problems in science: the relationship between brain activity and conscious experiences.

Continue reading “Is Reality an Illusion? — Professor Donald Hoffman, PhD” »

Apr 23, 2023

Researchers Argue Black Holes Will Destroy All Quantum States

Posted by in categories: cosmology, quantum physics

New calculations suggest that the event horizons will eventually “decohere” quantum possibilities—even those that are far away.

Apr 23, 2023

Cosmologists Parry Attacks on the Vaunted Cosmological Principle

Posted by in category: cosmology

A central pillar of cosmology — the universe is the same everywhere and in all directions — is surviving a storm of possible evidence against it.

Apr 23, 2023

Quantum entanglement could make accelerometers and dark matter sensors more accurate

Posted by in categories: cosmology, mobile phones, quantum physics

The “spooky action at a distance” that once unnerved Einstein may be on its way to being as pedestrian as the gyroscopes that currently measure acceleration in smartphones.

Quantum entanglement significantly improves the precision of sensors that can be used to navigate without GPS, according to a new study in Nature Photonics.

“By exploiting entanglement, we improve both measurement sensitivity and how quickly we can make the measurement,” said Zheshen Zhang, associate professor of electrical and computer engineering at the University of Michigan and co-corresponding author of the study. The experiments were done at the University of Arizona, where Zhang was working at the time.

Apr 22, 2023

New dark matter map created with ‘cosmic fossil’ shows Einstein was right (again)

Posted by in categories: cosmology, mapping, physics

The mapping of matter in the cosmos helps to confirm Einstein’s theory of general relativity and reveals more about mysterious dark matter.

Apr 21, 2023

Artificial intelligence has improved the first-ever real photo of a supermassive black hole 6.5 billion times heavier than the Sun

Posted by in categories: cosmology, information science, robotics/AI

In 2017, the European Southern Observatory (ESO) obtained the first ever real photo of a black hole. Six years later, artificial intelligence was able to improve the image.

Here’s What We Know

American scientists have decided to improve the photo of a black hole. The original image shows something resembling a “fuzzy donut”. Experts have applied the PRIMO algorithm, based on machine learning, to improve the image.

Apr 21, 2023

Probing fundamental symmetries of nature with the Higgs boson

Posted by in categories: cosmology, particle physics

Where did all the antimatter go? After the Big Bang, matter and antimatter should have been created in equal amounts. Why we live in a universe of matter, with very little antimatter, remains a mystery. The excess of matter could be explained by the violation of charge-parity (CP) symmetry, which essentially means that certain processes that involve particles behave differently to those that involve their antiparticles.

However, the CP-violating processes that have been observed so far are insufficient to explain the matter–antimatter asymmetry in the universe. New sources of CP violation must be out there—and might be hiding in interactions involving the Higgs boson. In the Standard Model of particle physics, Higgs-boson interactions with other particles conserve CP symmetry. If researchers find signs of CP violation in these interactions, they could be a clue to one of the universe’s oldest mysteries.

In a new analysis of its full dataset from Run 2 of the LHC, the ATLAS collaboration tested the Higgs-boson interactions with the carriers of the weak force, the W and Z bosons, looking for signs of CP violation. The collaboration studied Higgs-boson decays into two Z bosons, each of which transforms into a pair of leptons (an electron and a positron or a muon and an antimuon), thus resulting in four charged leptons. The researchers also studied interactions in which two W or Z bosons combine to produce a Higgs boson. In this case, one quark and one antiquark are produced together with the Higgs boson, creating ‘jets’ of particles in the ATLAS detector.