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Apr 30, 2022

How An “Ocean” in Your Brain Helps Transmit Information

Posted by in categories: biological, computing, neuroscience

For years, the brain has been thought of as a biological computer that processes information through traditional circuits, whereby data zips straight from one cell to another. While that model is still accurate, a new study led by Salk Professor Thomas Albright and Staff Scientist Sergei Gepshtein shows that there’s also a second, very different way that the brain parses information: through the interactions of waves of neural activity. The findings, published in Science Advances on April 22, 2022, help researchers better understand how the brain processes information.

“We now have a new understanding of how the computational machinery of the brain is working,” says Albright, the Conrad T. Prebys Chair in Vision Research and director of Salk’s Vision Center Laboratory. “The model helps explain how the brain’s underlying state can change, affecting people’s attention, focus, or ability to process information.”

Researchers have long known that waves of electrical activity exist in the brain, both during sleep and wakefulness. But the underlying theories as to how the brain processes information—particularly sensory information, like the sight of a light or the sound of a bell—have revolved around information being detected by specialized brain cells and then shuttled from one neuron to the next like a relay.

Apr 29, 2022

A unified 3D map of microscopic architecture and MRI of the human brain

Posted by in categories: biotech/medical, neuroscience

A 200-μm scale 3D reconstruction of the human brain was created based on ultrahigh-field quantitative MRI and light microscopy.

Apr 29, 2022

Write an essay in 5 lines of code using GPT-Neo

Posted by in category: robotics/AI

Eleuther AI developed GPT Neo, an open-source model, an autoregressive transformer using the mesh library.

Apr 29, 2022

Ultra-pure diamond could store 25 exabytes (EB) of data

Posted by in category: computing

Engineers have developed a way to mass-produce diamond wafers that could store the equivalent of a billion Blu-ray disks on a single device.

Apr 29, 2022

[Exclusive] Elon Musk: A future worth getting excited about | TED | Tesla Gigafactory interview

Posted by in categories: business, economics, Elon Musk, robotics/AI, space travel, sustainability

Elon talks about x-risks and making us a multi-planetary species, amongst other things.


What’s on Elon Musk’s mind? In this exclusive conversation with head of TED Chris Anderson, Musk details how the radical new innovations he’s working on — Tesla’s intelligent humanoid robot Optimus, SpaceX’s otherworldly Starship and Neuralink’s brain-machine interfaces, among others — could help maximize the lifespan of humanity and create a world where goods and services are abundant and accessible for all. It’s a compelling vision of a future worth getting excited about. (Recorded at the Tesla Texas Gigafactory on April 6, 2022)

Continue reading “[Exclusive] Elon Musk: A future worth getting excited about | TED | Tesla Gigafactory interview” »

Apr 29, 2022

‘Doomed’ Moon Phobos Is Going To Crash Into Mars

Posted by in categories: biological, physics, space

Last week, NASA’s Perseverance Rover captured a gorgeous view of Phobos eclipsing the Sun, from the surface of Mars. From the point of view of any Martian microbes lurking out there, the eclipse may have seemed more ominous (yeah ok, there might not be living organisms up there, let alone ones sentient enough to grasp the concept of an eclipse) as the moon is destined by physics to one day slam into the red planet.

Phobos – the closest of Mars’ two moons – is set to get ever closer to the planet, before its final descent, while Deimos will drift ever outwards until it leaves Mars’ orbit.

Apr 29, 2022

A Headline Yesterday Stated the Green Energy Transition Has Stalled — Why?

Posted by in categories: government, sustainability

Alex Pourbaix, the CEO of Cenovus, Canada’s second-largest oil and gas company, spoke up in a call with industry analysts where he criticized the plan and the money being offered to the industry. He called for a much large commitment from governments if the industry were to build large-scale CCUS. Pourbaix suggested that there were examples from other countries where the industry was being given up to 70% of the capital costs on new CCUS projects and was receiving additional money to offset operating costs.

While Pourbaix was complaining about the lack of money to build CCUS projects, he also announced to analysts that Cenovus had earned a seven-fold jump in its quarterly profits, and was tripling dividend payments to shareholders. This wasn’t mentioned in Jones’ article but did appear in the same edition of the paper, two pages later, tucked away well below the fold. It reported Cenovus had announced per-share dividends rising from $0.14 US to $0.42, with earnings exceeding analyst estimates at $0.79 per share. In the same report, Cenovus announced production output of synthetic crude from oil sands operations growing from over 769 to almost 800,000 barrels a day. There was no mention of GHG emissions contributions. And when I went to look at the company’s annual and quarterly reports, there was no reporting on GHG emissions or even intensity per barrel or per cubic metre related to production although there was a pledge to sustainability and best ESG practices. A 2020 Bloomsberg report states that GHG emissions at Cenovus continue to rise.

Cenovus is one of the founding members of the Clean Resource Innovation Network (CRIN). Its mission is to keep Canadian oil and natural gas companies competitive in world markets. Other members are fossil fuel companies, think tanks, academics, and government departments. CRIN acknowledges a low-carbon future but seems to lack a roadmap to get there. As I perused the website there was little information on strategies for carbon emission reductions. There was content related to intensity per unit of production as well as discussion about cleaner fuel standards. But I found nothing about CCUS.

Apr 29, 2022

MIT’s new desalination unit generates drinking water without the need for filters

Posted by in categories: mobile phones, solar power, sustainability

Apr 29, 2022

Cloud-seeding operation begins in skies over Saudi Arabia

Posted by in category: food

Apr 29, 2022

New hydrogen fuel cell uses iron instead of rare and expensive platinum

Posted by in category: energy

A cheaper hydrogen fuel cell could mean better green energy options.