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Mar 12, 2023

Breathtaking Early Stages of Star Formation Captured With James Webb Space Telescope

Posted by in category: space

Webb space telescope’s mid-infrared capabilities allowed scientists to see past gas and dust clouds to observe previously obscured details in faraway galaxies.

A team of researchers has been able to see inside faraway spiral galaxies for the first time to study how they formed and how they change over time, thanks to the powerful capabilities of the James Webb Space Telescope.

“We’re studying 19 of our closest analogs to our own galaxy. In our own galaxy we can’t make a lot of these discoveries because we’re stuck inside it,” says Erik Rosolowsky, professor in the University of Alberta Department of Physics and co-author on a recent paper — published in The Astrophysical Journal Letters.

Mar 12, 2023

Social sponges: Gendered brain development comes from society, not biology

Posted by in categories: biological, neuroscience

After debunking many myths around male and female brains, Gina Rippon’s research interests now include gender gaps in science and why they persist, even in allegedly gender-equal societies.

Mar 12, 2023

Decoding the Brain

Posted by in categories: nanotechnology, neuroscience, physics

How does the brain retrieve memories, articulate words, and focus attention? Recent advances have provided a newfound ability to decipher, sharpen, and adjust electrical signals relevant to speech, attention, memory and emotion. Join Brian Greene and leading neuroscientists György Buzsáki, Edward Chang, Michael Halassa, Michael Kahana and Helen Mayberg for a thrilling exploration of how we’re learning to read and manipulate the mind.

The Kavli Prize recognizes scientists for their seminal advances in astrophysics, nanoscience, and neuroscience — topics covered in the series “The Big, the Small, and the Complex.” This series is sponsored by The Kavli Foundation and The Norwegian Academy of Science and Letters.

Continue reading “Decoding the Brain” »

Mar 12, 2023

Scientists created a black hole in an unique lab experiment. Then, it started to glow

Posted by in category: cosmology

This experiment can be used to solve several questions that scientists have been seeking the answers to for years.

Mar 12, 2023

Think more rationally with Bayes’ rule | Steven Pinker

Posted by in categories: ethics, neuroscience

The formula for rational thinking explained by Harvard professor Steven Pinker.

Up next, The war on rationality ► https://youtu.be/qdzNKQwkp-Y

Continue reading “Think more rationally with Bayes’ rule | Steven Pinker” »

Mar 12, 2023

Some Stars Chew Up and Spit Out Their Planets — But It’s Not a Death Sentence

Posted by in category: space

That’s some tough parenting.


Stars commonly engulf planets, but some can survive and even outlive the star.

Mar 12, 2023

Muscle is the Cornerstone of Longevity

Posted by in category: life extension

Pumping iron, weight-lifting, strength training—call it what you want, but it is key to living longer, according to Dr. Gabrielle Lyon.

Mar 12, 2023

ARTEMIS: ‘World’s fastest’ humanoid robot readies for RoboCup

Posted by in category: robotics/AI

The University of California, Los Angeles (UCLA), Samueli School of Engineering has developed Advanced Robotic Technology for Enhanced Mobility and Improved Stability (ARTEMIS), a cutting-edge humanoid robot.

The robot will travel to Bordeaux, France, in July to compete in the soccer match of the 2023 RoboCup, as per a press release by the university on Friday.

Mar 12, 2023

The Nobel Prize in Physics 1973

Posted by in categories: materials, physics

Was divided, one half jointly to Leo Esaki and Ivar Giaever ‘for their experimental discoveries regarding tunneling phenomena in semiconductors and superconductors, respectively’ and the other half to Brian David Josephson ‘for his theoretical predictions of the properties of a supercurrent through a tunnel barrier, in particular those phenomena which are generally known as the Josephson effects’

Mar 12, 2023

How Einstein tried to model the shape of the Universe

Posted by in categories: cosmology, information science, mathematics, quantum physics

To keep his Universe static, Einstein added a term into the equations of general relativity, one he initially dubbed a negative pressure. It soon became known as the cosmological constant. Mathematics allowed the concept, but it had absolutely no justification from physics, no matter how hard Einstein and others tried to find one. The cosmological constant clearly detracted from the formal beauty and simplicity of Einstein’s original equations of 1915, which achieved so much without any need for arbitrary constants or additional assumptions. It amounted to a cosmic repulsion chosen to precisely balance the tendency of matter to collapse on itself. In modern parlance we call this fine tuning, and in physics it is usually frowned upon.

Einstein knew that the only reason for his cosmological constant to exist was to secure a static and stable finite Universe. He wanted this kind of Universe, and he did not want to look much further. Quietly hiding in his equations, though, was another model for the Universe, one with an expanding geometry. In 1922, the Russian physicist Alexander Friedmann would find this solution. As for Einstein, it was only in 1931, after visiting Hubble in California, that he accepted cosmic expansion and discarded at long last his vision of a static Cosmos.

Einstein’s equations provided a much richer Universe than the one Einstein himself had originally imagined. But like the mythic phoenix, the cosmological constant refuses to go away. Nowadays it is back in full force, as we will see in a future article.