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Dec 14, 2024

Physicists Find Particle That Only Has Mass When Moving in One Direction

Posted by in categories: materials, particle physics

Scientists have made a satisfying and intriguing physics discovery some 16 years after it was first predicted to be a possibility: a quasiparticle (a group of particles behaving as one) that only has an effective mass when moving in one direction.

In physics, mass generally refers to a property of particles that relates to things like their energy and resistance to movement. Yet not all mass is built the same – some describes the energy of a particle at rest, for example, while mass may also take into account the energy of a particle’s motion.

In this case, the effective mass describes the quasiparticle’s response to forces, which varies depending on whether the movement through the material is up and down, or back and forth.

Dec 14, 2024

Warning of ‘Unprecedented Risks,’ Scientists Say Mirror Bacteria ‘Should Not Be Created’

Posted by in category: biotech/medical

“So when we’re talking about mirror-image life, it’s kind of like a ‘what if’ experiment: What if we constructed life with right-handed proteins instead of left-handed proteins? Something that would be very, very similar to natural life, but doesn’t exist in nature. We call this mirror-image life or mirror life,” explained to Michael Kay, a professor of biochemistry at University of Utah’s medical school.

Some scientists like Kay are interested in the medical possibilities of mirror-image therapeutics—which Kay says holds potential for treating chronic illness in a more cost-effective way—but both he and the authors of the recently published commentary are concerned about the potential threats posed by mirror bacteria.

“Our analysis suggests that mirror bacteria could broadly evade many immune defenses of humans, animals, and plants. Chiral interactions, which are central to immune recognition and activation in multicellular organisms, would be impaired with mirror bacteria,” according to the scientists.

Dec 14, 2024

Scientists achieve major milestone with levitating, virtually limitless energy device: ‘A feat in and of itself’

Posted by in category: nuclear energy

A New Zealand-based company just took one step closer to creating a working nuclear fusion reactor, Interesting Engineering reported.

Dec 14, 2024

AI framework automatically discovers experimental designs in microscopy

Posted by in category: robotics/AI

It performs optimizations 10,000 times faster than well-established methods.

Dec 14, 2024

Dust & Dust Mite Allergies

Posted by in category: health

When you’re allergic to dust and dust mites, it can feel like having an endless cold or even asthma. WebMD has tips to help prevent and ease your symptoms.

Dec 14, 2024

Robot in China persuades others to ‘go home’

Posted by in category: robotics/AI

Robots can convince other robots to do something.


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Dec 14, 2024

Sanctuary AI’s dexterous robotic hands offer in-hand manipulation

Posted by in category: robotics/AI

Sanctuary AI advances robotics with 21-DOF hands using hydraulic actuation, enabling intricate tasks and boosting humanoid robot potential.

Dec 14, 2024

DARPA awards BAE Systems Phase 2 of next-generation advanced electronics program

Posted by in categories: media & arts, military

After the successful completion of Phase 1 of the next-generation electronics program, the Defense Advanced Research Projects Agency (DARPA) has provided BAE Systems’ FAST Labs research and development organization a $5 million contract for Phase 2 of the Technologies for Mixed-mode Ultra Scaled Integrated Circuits (T-MUSIC) program.

T-MUSIC is designed to enable disruptive radio frequency (RF) mixed-mode technologies by developing high performance RF analog electronics integrated with advanced digital electronics on the same wafer. This technology supports critical communications, radar, and electronic warfare (EW) capabilities, and is widely used to support commercial telecommunications.

“Building on the success of Phase 1, in Phase 2 we’ll continue to develop the advanced electronics capabilities that could serve as the foundation for greatly enhanced Department of Defense capabilities in advanced RF sensors and high capacity communications,” said Chris Rappa, product line director for Radio Frequency, Electronic Warfare, and Advanced Electronics at BAE Systems’ FAST Labs. “Phase 2 of the program will move the industry closer to the eventual fielding of this disruptive technology to protect our warfighters.”

Dec 14, 2024

OpenAI Cofounder Ilya Sutskever Says The Way AI Is Built Is About To Change

Posted by in category: robotics/AI

“We’ve achieved peak data and there’ll be no more,” OpenAI’s former chief scientist told a crowd of AI researchers.

Dec 14, 2024

Creating ‘Mirror Life’ Could Be Disastrous, Scientists Warn

Posted by in categories: bioengineering, biological

Breakthroughs in synthetic biology could create mirror versions of natural molecules, with devastating consequences for life on Earth.

By Simon Makin

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