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Webb Sees an Early Galaxy Blowing Away the Cosmic Fog

Universe Today Feed - Fri, 03/28/2025 - 5:17am

When the James Webb Space Telescope was launched in December 2021, one of its primary purposes was to see the first galaxies in the Universe forming just a few million years after the Big Bang. In true JWST style though, it has surpassed all expectations and now, a team of astronomers think they have gone even further back, seeing one galaxy clearing the early fog that obscured the Universe! The image represents a point in time 330 million years after the Big Bang and reveals a bright hydrogen emission from the fog surrounding a galaxy. It was somewhat unexpected though as current models predict it would have been blown away long ago!

Categories: Science

H&M Will Use Digital Twins

neurologicablog Feed - Fri, 03/28/2025 - 4:55am

The fashion retailer, H&M, has announced that they will start using AI generated digital twins of models in some of their advertising. This has sparked another round of discussion about the use of AI to replace artists of various kinds.

Regarding the H&M announcement specifically, they said they will use digital twins of models that have already modeled for them, and only with their explicit permission, while the models retain full ownership of their image and brand. They will also be compensated for their use. On social media platforms the use of AI-generated imagery will carry a watermark (often required) indicating that the images are AI-generated.

It seems clear that H&M is dipping their toe into this pool, doing everything they can to address any possible criticism. They will get explicit permission, compensate models, and watermark their ads. But of course, this has not shielded them from criticism. According to the BBC:

American influencer Morgan Riddle called H&M’s move “shameful” in a post on her Instagram stories.

“RIP to all the other jobs on shoot sets that this will take away,” she posted.

This is an interesting topic for discussion, so here’s my two-cents. I am generally not compelled by arguments about losing existing jobs. I know this can come off as callous, as it’s not my job on the line, but there is a bigger issue here. Technological advancement generally leads to “creative destruction” in the marketplace. Obsolete jobs are lost, and new jobs are created. We should not hold back progress in order to preserve obsolete jobs.

Machines have been displacing human laborers for decades, and all along the way we have heard warnings about losing jobs. And yet, each step of the way more jobs were created than lost, productivity increased, and everybody benefited. With AI we are just seeing this phenomenon spread to new industries. Should models and photographers be protected when line workers and laborers were not?

But I get the fact that the pace of creative destruction appears to be accelerating. It’s disruptive – in good and bad ways. I think it’s a legitimate role of government to try to mitigate the downsides of disruption in the marketplace. We saw what happens when industries are hollowed out because of market forces (such as globalization). This can create a great deal of societal ill, and we all ultimately pay the price for this. So it makes sense to try to manage the transition. This can mean providing support for worker retraining, protecting workers from unfair exploitation, protecting the right for collective bargaining, and strategically investing in new industries to replace the old ones. One factory is shutting down, so tax incentives can be used to lure in a replacement.

Regardless of the details – the point is to thoughtfully manage the creative destruction of the marketplace, not to inhibit innovation or slow down progress. Of course, industry titans will endlessly echo that sentiment. But they appear to be interested mostly in protecting their unfettered ability to make more billions. They want to “move fast and break things”, whether that’s the environment, human lives, social networks, or democracy. We need some balance so that the economy works for everyone. History consistently shows that if you don’t do this, the ultimate outcome is always even more disruptive.

Another angle here is if these large language model AIs were unfairly trained on the intellectual property of others. This mostly applies to artists – train an AI on the work of an artist and then displace that artist with AI versions of their own work. In reality it’s more complicated than that, but this is a legitimate concern. You can theoretically train an LLM only on work that is in the public domain, or give artists the option to opt out of having their work used in training. Otherwise the resulting work cannot be used commercially. We are currently wrestling with this issue. But I think ultimately this issue will become obsolete.

Eventually we will have high quality AI production applications that have been scrubbed of any ethically compromised content but still are able to displace the work of many content creators – models, photographers, writers, artists, vocal talent, news casters, actors, etc. We also won’t have to use digital twins, but just images of virtual people who never existed in real life. The production of sound, images, and video will be completely disconnected (if desired) from the physical world. What then?

This is going to happen, whether we want it to or not. The AI genie is out of the bottle. I don’t think we can predict exactly what will happen. There are too many moving parts, and people will react in unpredictable ways. But it will be increasingly disruptive. Partly we will need to wait and see how it plays out. But we cannot just sit on the sideline and wait for it to happen. Along the way we need to consider if there is a role for thoughtful regulation to limit the breaking of things. My real concern is that we don’t have a sufficiently functional and expert political class to adequately deal with this.

The post H&M Will Use Digital Twins first appeared on NeuroLogica Blog.

Categories: Skeptic

Webb Sees Neptune's Auroras for the First Time

Universe Today Feed - Fri, 03/28/2025 - 4:10am

The outer planets remain somewhat of a mystery and Neptune is no exception. Voyager 2 has been the only probe that has visited the outermost planet but thankfully the James Webb Space Telescope is powerful enough to reveal it in all its glory. With its cameras regularly fixed on Neptune it has even picked up auroral activity in some of its latest images. The data was gathered back in 2023 using Webb’s Near-Infrared spectrograph which detected the tell tale sign of auroral activity, an emission line of trihydrogen cation. The element appears on other giant planets too when aurora are present.

Categories: Science

Could a new kind of carbon budget ensure top emitters pay their dues?

New Scientist Feed - Fri, 03/28/2025 - 4:00am
Some researchers propose that countries should start to rack up a carbon debt once they exceed their carbon budget, obliging them to do more to draw down carbon dioxide, but the idea is unlikely to form part of international climate agreements
Categories: Science

Science Based Satire: A Sneak Preview Of RFK Jr.’s Vaccine-Autism Study

Science-based Medicine Feed - Fri, 03/28/2025 - 12:07am

We Told You So: Vaccines Cause Autism And So Many Other Really Bad Things

The post Science Based Satire: A Sneak Preview Of RFK Jr.’s Vaccine-Autism Study first appeared on Science-Based Medicine.
Categories: Science

CoRaLS Instrument Could Identify Buried Lunar Ice

Universe Today Feed - Fri, 03/28/2025 - 12:01am

Can the cosmic rays bombarding the lunar surface be used to identify subsurface water ice deposits? This is what a recent study and iposter presented at the 56th Lunar and Planetary Science Conference (LPSC) hopes to address as a team of researchers developed a novel method called the Cosmic Ray Lunar Sounder (CoRaLS) capable of detecting subsurface lunar water ice deposits that are elusive to current radar systems. This study has the potential to help expand the human presence on the Moon since water ice deposits are currently being focused on the permanently shadowed regions (PSRs) of the Moon for the upcoming Artemis missions.

Categories: Science

Distracted by your phone? Putting it out of reach may not help

New Scientist Feed - Thu, 03/27/2025 - 10:00pm
When researchers asked people to work on a computer with their phones 1.5 metres away, the amount of time they spent on their phone went down – but they just scrolled social media on their laptop instead
Categories: Science

The Future of Studying ExoVenuses Looks Bright

Universe Today Feed - Thu, 03/27/2025 - 6:14pm

What can Venus-like exoplanets, also known as exoVenuses, teach us about our own solar system and potentially finding life beyond Earth, and how can the planned Habitable Worlds Observatory (HWO) provide these insights? This is what a recent study presented at the 56th Lunar and Planetary Science Conference (LPSC) hopes to address as a team of scientists discussed the difficulties of studying exoVenuses and how HWO can help alleviate these challenges by directly imaging them. This study has the potential to help astronomers develop advanced methods for better identifying and understanding potentially life-harboring exoplanets throughout the cosmos.

Categories: Science

Webb Sees a Young Star Create a Cosmic Tornado

Universe Today Feed - Thu, 03/27/2025 - 4:04pm

Way back in 2006, the Spitzer Space Telescope (SST) took an infrared look at a strange object called Herbig-Haro 49/50. It's a jet flowing away from a hot young star. The Spitzer image showed a fuzzy blob at the end of the jet. Was it part of the jet, or something more distant? Recently, the James Webb Space Telescope (JWST) focused its infrared eye on the same object and sent home a fantastic snapshot of this cosmic tornado. It also answered the question about the blob: it turns out to be a distant galaxy, itself bursting with hot young stars.

Categories: Science

When Glaciers Roamed Mars

Universe Today Feed - Thu, 03/27/2025 - 2:41pm

Mars is cold and dry, but long ago, it was warmer and wetter. Today, its geology is driven by wind and sand, but it was also shaped by water and maybe even glaciers. Glacial activity on Mars was long assumed to be dry, with glaciers frozen right to their beds, scouring the landscape of the Red Planet. But now, researchers think they've found evidence of subglacial melting, where a layer of water forms under the glacier, helping to form various features on Mars.

Categories: Science

Breakthrough copper alloy achieves unprecedented high-temperature performance

Matter and energy from Science Daily Feed - Thu, 03/27/2025 - 1:45pm
A team of researchers has developed a groundbreaking high-temperature copper alloy with exceptional thermal stability and mechanical strength. The research team's findings on the new copper alloy introduce a novel bulk Cu-3Ta-0.5Li nanocrystalline alloy that exhibits remarkable resistance to coarsening and creep deformation, even at temperatures near its melting point.
Categories: Science

Physics of irregular objects on inclined planes probed

Matter and energy from Science Daily Feed - Thu, 03/27/2025 - 1:45pm
How gravity causes a perfectly spherical ball to roll down an inclined plane is part of elementary school physics canon. But the world is messier than a textbook. Scientists have sought to quantitatively describe the much more complex rolling physics of real-world objects. They have now combined theory, simulations, and experiments to understand what happens when an imperfect, spherical object is placed on an inclined plane.
Categories: Science

Physics of irregular objects on inclined planes probed

Computers and Math from Science Daily Feed - Thu, 03/27/2025 - 1:45pm
How gravity causes a perfectly spherical ball to roll down an inclined plane is part of elementary school physics canon. But the world is messier than a textbook. Scientists have sought to quantitatively describe the much more complex rolling physics of real-world objects. They have now combined theory, simulations, and experiments to understand what happens when an imperfect, spherical object is placed on an inclined plane.
Categories: Science

Dark Matter Could Make Planets Spin Faster

Universe Today Feed - Thu, 03/27/2025 - 11:58am

Dark matter is a confounding concept that teeters on the leading edges of cosmology and physics. We don't know what it is or how exactly it fits into the Standard Cosmological Model. We only know that its unseen mass is a critical part of the Universe.

Categories: Science

Revolutionary brain-computer interface decoding system

Computers and Math from Science Daily Feed - Thu, 03/27/2025 - 11:20am
Researchers have conducted groundbreaking research on memristor-based brain-computer interfaces (BCIs). This research presents an innovative approach for implementing energy-efficient adaptive neuromorphic decoders in BCIs that can effectively co-evolve with changing brain signals.
Categories: Science

The hidden spring in your step

Matter and energy from Science Daily Feed - Thu, 03/27/2025 - 11:20am
Researchers reveal the way our legs adapt to fast movements. When people hop at high speeds, key muscle fibers in the calf shorten rather than lengthen as forces increase, which they call 'negative stiffness.' This counterintuitive process helps the leg become stiffer, allowing for faster motion. The findings could improve training, rehabilitation, and even the design of prosthetic limbs or robotic exoskeletons.
Categories: Science

The hidden spring in your step

Computers and Math from Science Daily Feed - Thu, 03/27/2025 - 11:20am
Researchers reveal the way our legs adapt to fast movements. When people hop at high speeds, key muscle fibers in the calf shorten rather than lengthen as forces increase, which they call 'negative stiffness.' This counterintuitive process helps the leg become stiffer, allowing for faster motion. The findings could improve training, rehabilitation, and even the design of prosthetic limbs or robotic exoskeletons.
Categories: Science

Physicists discover a copper-free high-temperature superconducting oxide

Matter and energy from Science Daily Feed - Thu, 03/27/2025 - 11:19am
Engineers have designed and synthesized a groundbreaking new material -- a copper-free superconducting oxide -- capable of superconducting at approximately 40 Kelvin, or about minus 233 degrees Celsius, under ambient pressure.
Categories: Science

Physicists discover a copper-free high-temperature superconducting oxide

Computers and Math from Science Daily Feed - Thu, 03/27/2025 - 11:19am
Engineers have designed and synthesized a groundbreaking new material -- a copper-free superconducting oxide -- capable of superconducting at approximately 40 Kelvin, or about minus 233 degrees Celsius, under ambient pressure.
Categories: Science

Physics meets art: A new twist on interference patterns

Matter and energy from Science Daily Feed - Thu, 03/27/2025 - 11:17am
Researchers have discovered brand new interference patterns in twisted two-dimensional tungsten ditelluride lattices. These so-called moir patterns can be tuned to look like periodic spots or even one-dimensional bands by adjusting the twist angle between layers, and they can drastically alter the physical properties of the material.
Categories: Science

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