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Apr 21, 2024

The World’s First X-Ray Of A Single Atom

Posted by in category: particle physics

Scientists could see what those atoms got up to in the molecules they were placed in.

Apr 21, 2024

Obscure $10 billion chip firm you never heard of finally delivers crucial tech for AI future — Astera Labs showcased its Aries 6 PCIe retimer board as it targets future Nvidia HGX boards

Posted by in categories: futurism, robotics/AI

The Aries 6 PCIe retimer board got a first showing at GTC2024.

Apr 21, 2024

Women in AI: Anna Korhonen studies the intersection between linguistics and AI

Posted by in category: robotics/AI

To give AI-focused women academics and others their well-deserved — and overdue — time in the spotlight, TechCrunch has been publishing a series of interviews focused on remarkable women who’ve contributed to the AI revolution. We’re publishing these pieces throughout the year as the AI boom continues, highlighting key work that often goes unrecognized. Read more profiles here.

In the spotlight today: Anna Korhonen is a professor of natural language processing (NLP) at the University of Cambridge. She’s also a senior research fellow at Churchill College, a fellow at the Association for Computational Linguistics, and a fellow at the European Laboratory for Learning and Intelligent Systems.

Korhonen previously served as a fellow at the Alan Turing Institute and she has a PhD in computer science and master’s degrees in both computer science and linguistics. She researches NLP and how to develop, adapt and apply computational techniques to meet the needs of AI. She has a particular interest in responsible and “human-centric” NLP that — in her own words — “draws on the understanding of human cognitive, social and creative intelligence.”

Apr 21, 2024

Two companies enter historic, multimillion-dollar deal to manufacture solar panels domestically — here’s how it could affect American energy

Posted by in categories: solar power, sustainability

A couple of solar-sector manufacturers have a powerhouse agreement that reaches a unique benchmark. Thanks to a $400 million, three-year deal between Heliene and Suniva, solar panels and cells will be entirely made in the U.S., a unique combination until now.

Electrek reports that to this point, solar cells — the contraption that turns sunlight into electricity — were imported.

Continue reading “Two companies enter historic, multimillion-dollar deal to manufacture solar panels domestically — here’s how it could affect American energy” »

Apr 21, 2024

Exodus Propulsion Technologies Claims Huge Space Propulsion Breakthrough

Posted by in categories: materials, space

Dr. Charles Buhler and Exodus Technologies claims that systems with electrostatic pressure differences or electrostatic divergent fields gives systems with a center of mass with non-zero force component (aka generate movement). Buhler is NASA’s subject matter expert on electrostatics. They want to move to demo the system in orbit. These kinds of claims are controversial but the work seems to be thorough. It will only cost about $500k to $1M to create a rideshare mission into orbit to test the system. The mass of an early orbital system would greatly exceed the active materials of the propulsion, which would reduce performance. High performance space propulsion would need to increase the active materials as a percentage of the mass of the craft.

Dr. Charles Buhler discusses an experimental propulsion results based on asymmetrical electrostatic pressure, in a device described in International Patent# WO2020159603A2. The device is described as a system and method for generating a force from a voltage difference applied across at least one electrically conductive surface. The applied voltage difference creates an electric field resulting in an electrostatic pressure force acting on at least one surface of an object. Asymmetries in the resulting electrostatic pressure force vectors result in a net resulting electrostatic pressure force acting on the object. The magnitude of the net resulting electrostatic pressure force is a function of the geometry of the electrically conductive surfaces, the applied voltage, and the dielectric constant of any material present in the gap between electrodes.

Dr. Buhler has experience working with electrostatic discharge & ESD safety for the Space Shuttle Program, the International Space Station Program and the Hubble Space Telescope Program. He was also a Co-Investigator for three NASA Research Announcements funded by the Mars Exploration Program, and is currently working on NASA’s Dust Project focused on utilizing electrostatic methods to remove dust from personnel and equipment that will be sent to the Moon through NASA’s Constellation Program.

Apr 21, 2024

Connecting Solar to the Grid is Harder Than You Think

Posted by in category: futurism

A lot of the interesting challenges with renewables are happening behind the scenes.🌌Get Nebula using my link for 40% off an annual subscription: https://go

Apr 21, 2024

NOAA warning: Severe geomagnetic storm in progress, aurora alert • Earth

Posted by in category: space

A significant space weather event has prompted the National Oceanic and Atmospheric Administration (NOAA) to issue a Geomagnetic Storm Alert.

The Space Weather Message Code ALTK07, issued at 1952 UTC on April 19, 2024, indicates that the geomagnetic K-index has reached a value of 7, crossing the threshold at 1951 UTC during the synoptic period of 1800–2100 UTC.

Initially, space experts anticipated the storm’s intensity to fluctuate between a G1 and G2 level, potentially escalating to G3 by Sunday.

Apr 21, 2024

“One Ring To Rule Them All” — Molecular Biologists Have Cracked the Formin Code

Posted by in categories: biotech/medical, chemistry

Actin is a highly abundant protein that controls the shape and movement of all our cells. Actin achieves this by assembling into filaments, one actin molecule at a time. The proteins of the formin family are pivotal partners in this process: positioned at the filament end, formins recruit new actin subunits and stay associated with the end by ‘stepping’ with the growing filament.

There are as many as 15 different formins in our cells that drive actin filament growth at different speeds and for different purposes. Yet, the exact mechanism of action of formins and the basis for their different inherent speeds have remained elusive. Now, for the first time, researchers from the groups of Stefan Raunser and Peter Bieling at the Max Planck Institute of Molecular Physiology in Dortmund have visualized at the molecular level how formins bind to the ends of actin filaments.

This allowed them to uncover how formins mediate the addition of new actin molecules to a growing filament. Furthermore, they elucidated the reasons for the different speeds at which the different formins promote this process. The MPI researchers used a combination of biochemical strategies and electron cryo-microscopy (cryo-EM). The breakthrough, published in the journal Science, can help us explain why certain mutations in formins can lead to neurological, immune, and cardiovascular diseases.

Apr 21, 2024

Scientists Get Serious in the Search for a Working Warp Drive

Posted by in category: space travel

A crucial development is propelling engineers toward faster-than-light travel.

Apr 21, 2024

US seeks alliance with Abu Dhabi on artificial intelligence

Posted by in category: robotics/AI

Biden administration brokers talks between Microsoft, OpenAI, Google and the UAE, as Washington seeks edge over China.

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