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Jan 16, 2023

Artificial intelligence discovers new nanostructures

Posted by in categories: nanotechnology, robotics/AI

By Brookhaven National Laboratory

Scientists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory have successfully demonstrated that autonomous methods can discover new materials. The artificial intelligence (AI)-driven technique led to the discovery of three new nanostructures, including a first-of-its-kind nanoscale “ladder.” The research was published today in Science Advances…

The newly discovered structures were formed by a process called , in which a material’s molecules organize themselves into unique patterns. Scientists at Brookhaven’s Center for Functional Nanomaterials (CFN) are experts at directing the self-assembly process, creating templates for materials to form desirable arrangements for applications in microelectronics, catalysis, and more. Their discovery of the nanoscale ladder and other new structures further widens the scope of self-assembly’s applications.

Jan 16, 2023

Laser-controlled synthetic microswimmers show swarm intelligence can be caused by physical mechanisms

Posted by in category: physics

Seemingly spontaneously coordinated swarm behavior exhibited by large groups of animals is a fascinating and striking collective phenomenon. Experiments conducted by researchers at Leipzig University on laser-controlled synthetic microswimmers now show that supposed swarm intelligence can sometimes also be the result of simple and generic physical mechanisms.

A team of physicists led by Professor Frank Cichos and Professor Klaus Kroy found that swarms of synthetically produced Brownian microswimmers appear to spontaneously decide to orbit their target point instead of heading for it directly. They have just published their findings in the renowned journal Nature Communications.

“Scientific research on herd and flock behavior is usually based on field observations. In such cases, it is usually difficult to reliably record the internal states of the herd animals,” Kroy said. As a result, the interpretation of observations frequently relies on plausible assumptions as to which individual behavioral rules are necessary for the complex collective groups under observation.

Jan 16, 2023

Evolutionary transcriptomics reveals longevity mostly driven by polygenic and indirect selection in mammals

Posted by in categories: biotech/medical, life extension

The maximum lifespan varies more than 100-fold in mammals. This experiment of nature may uncover of the evolutionary forces and molecular features that define longevity. To understand the relationship between gene expression variation and maximum lifespan, we carried out a comparative transcriptomics analysis of liver, kidney, and brain tissues of 106 mammalian species. We found that expression is largely conserved and very limited genes exhibit common expression patterns with longevity in all the three organs analyzed. However, many pathways, e.g., “Insulin signaling pathway”, and “FoxO signaling pathway”, show accumulated correlations with maximum lifespan across mammals. Analyses of selection features further reveal that methionine restriction related genes whose expressions associated with longevity, are under strong selection in long-lived mammals, suggesting that a common approach could be utilized by natural selection and artificial intervention to control lifespan. These results suggest that natural lifespan regulation via gene expression is likely to be driven through polygenic model and indirect selection.

The authors have declared no competing interest.

Jan 16, 2023

Death’s End

Posted by in category: existential risks

https://www.youtube.com/watch?v=UEuyA6k7ntc

More Science Fiction Audiobooks : https://bit.ly/3Lx162h.

If you like this book, please buy the paper to support the author.

Continue reading “Death’s End” »

Jan 16, 2023

Italy Invents Robot That Carves Sculptures Out of Marble Like Michelangelo

Posted by in category: robotics/AI

Italian robotics startup Robotor has crafted a machine that is just as good at creating marble masterpieces out of Carrara marble than human artists.

Jan 16, 2023

The Terrible Fate of Mankind | Three Body Problem Series

Posted by in category: futurism

The Three Body Problem series aka The Remembrance of Earth’s Past Trilogy is one of the coolest modern science fiction series that I’ve read. Reading about humanity’s struggle throughout the eons to survive in a hostile cosmos is beyond compelling to me. In this video I’ll pick up where I left off in the last video. At the beginning of the Deterrence Era, which brought peace between the Trisolarans and humanity. Keep in mind this video will have spoilers for the books!

Get This book: https://amzn.to/3xFTS6P

Continue reading “The Terrible Fate of Mankind | Three Body Problem Series” »

Jan 15, 2023

Microbial Cocktails Are More Than a Gut Feeling

Posted by in categories: biotech/medical, health

Targeted manipulation of bacteria could boost immunity and help sufferers of chronic diseases and allergies.

Jan 15, 2023

NASA Captures Star Eaten

Posted by in categories: cosmology, ethics, policy

This is not investment advice. The author has no position in any of the stocks mentioned. Wccftech.com has a disclosure and ethics policy. The National Aeronautics and Space Administration (NASA) has captured rare footage of a black hole eating up a start and creating a gas cloud that is as large as the solar system.

Jan 15, 2023

NASA is asking for your help to study exoplanets

Posted by in categories: mobile phones, robotics/AI, space

With new tools like the James Webb Space Telescope, we’re discovering more exoplanets than ever and even peering into their atmospheres. Now, NASA is asking for the public’s help in learning more about some of the exoplanets that have already been detected in a citizen science program called Exoplanet Watch.

“With Exoplanet Watch you can learn how to observe exoplanets and do data analysis using software that actual NASA scientists use,” said Rob Zellem, the creator of Exoplanet Watch and an astrophysicist at NASA’s Jet Propulsion Laboratory, in a statement. “We’re excited to show more people how exoplanet science is really done.”

The Exoplanet Watch project has two parts, one involving observing for those who have access to a telescope, and one involving identifying exoplanets in existing data. Even if you don’t have access to equipment other than a computer or smartphone, you can still help in learning about exoplanets by requesting access to data collected by robotic telescopes and assisting with data analysis. That’s needed because observing exoplanets passing in front of their host stars — in events called transits — is only half of the challenge of finding a new planet. These transits result in dips in the star’s brightness, but these dips are very small at typically less than 1% of the star’s brightness.

Jan 15, 2023

James Webb captures image of star formation in nearby galaxy

Posted by in category: cosmology

A stunning new image from the James Webb Space Telescope shows a stellar nursery called NGC 346, which is not only beautiful but is also leading astronomers to rethink their theories about how stars and planets could have formed in the early universe.

The star cluster NGC 346 is a busy region full of star formation and is located in the nearby Small Magellanic Cloud, a satellite galaxy of the Milky Way. The composition of the Small Magellanic Cloud is rather different from that of the Milky Way, as it has fewer heavier elements. As dust is typically composed of these heavier elements, astronomers thought that there would be less dust in the Small Magellanic Cloud — but that’s not what Webb found.

Instead, Webb found abundant dust as well as hydrogen, which means this galaxy has the building blocks not only for stars but also for planets. This is interesting to astronomers who had wanted to study the Small Magellanic Cloud because its composition makes it similar to much older galaxies that existed in a period of the universe called the cosmic noon, around 2 to 3 billion years after the Big Bang.