Hacker News with Generative AI: Magnetism

Electric power generation from Earth's rotation through its own magnetic field (arxiv.org)
Earth rotates through the axisymmetric part of its own magnetic field, but a simple proof shows that it is impossible to use this to generate electricity in a conductor rotating with this http URL, we previously identified implicit assumptions underlying this proof and showed theoretically that these could be violated and the proof circumvented.
Electric Propulsion Magnets Ready for Space Tests (ieee.org)
Nestled at the foot of a steep, forested hill, 16 kilometers outside Wellington, New Zealand, is a rather unassuming building; one among many on a research campus that was first established in the 1940s. From outside, there’s little to suggest that this is the birthplace of a remarkable piece of technology bound for the International Space Station (ISS) in the coming months.
Physicists Confirm the Existence of a Third Form of Magnetism (sciencealert.com)
An experiment in Sweden has demonstrated control over a novel kind of magnetism, giving scientists a new way to explore a phenomenon with huge potential to improve electronics – from memory storage to energy efficiency.
What's the Deal with Magnetic Fields? (lcamtuf.substack.com)
In a recent article, I brought up an important gotcha about electricity:
Physicists have shown that an idealized form of magnetism is heatproof (quantamagazine.org)
Sunlight melts snowflakes. Fire turns logs into soot and smoke. A hot oven will make a magnet lose its pull. Physicists know from countless examples that if you crank the temperature high enough, structures and patterns break down.
Physicists Magnetize a Material with Light (news.mit.edu)
MIT physicists have created a new and long-lasting magnetic state in a material, using only light.
Tesla Cybertruck Becomes Extensively Corroded After Exposed to Magnet (torquenews.com)
Multiple Tesla Cybertruck owners share that their truck’s stainless steel has been rusted and corroded after exposure to a magnet. One owner specifically details the effects magnets have had on his Cybertruck’s stainless steel surface.
Researchers discover new third class of magnetism (nottingham.ac.uk)
A new class of magnetism called altermagnetism has been imaged for the first time in a new study. The findings could lead to the development of new magnetic memory devices with the potential to increase operation speeds of up to a thousand times.
The anomalous state of Uranus's magnetosphere during the Voyager 2 flyby (nature.com)
The Voyager 2 flyby of Uranus in 1986 revealed an unusually oblique and off-centred magnetic field.
Room temp chirality switching and detection in a helimagnetic MnAu2 thin film (nature.com)
Helimagnetic structures, in which the magnetic moments are spirally ordered, host an internal degree of freedom called chirality corresponding to the handedness of the helix.
The Solar Magnetic Field from Solar Minimum to Pole Flip (nasa.gov)
One advantage of long-lived missions like Solar Dynamics Observatory (SDO) is the ability to see slow but significant changes over long periods of time.
NASA Discovers a Long-Sought Global Electric Field on Earth (nasa.gov)
What Materials Are Magnetic? (sciencenotes.org)
Circularly Polarized Light Unlocks Ultrafast Magnetic Storage and Spintronics (scitechdaily.com)
EV Motors Without Rare Earth Permanent Magnets (ieee.org)
Tracing the hidden hand of magnetism in the galaxy (quantamagazine.org)
AI discovers new rare-earth-free magnet at 200 times the speed of man (newatlas.com)
The sun's magnetic field is about to flip (space.com)
Halbach Magnetic Array (wikipedia.org)
Life boomed on Earth half a billion years ago. You can thank magnets. (washingtonpost.com)
Making light 'feel' a magnetic field like an electron would (phys.org)
Digitized Continuous Magnetic Recordings for the 1859 Carrington Event (wiley.com)