Science

Synthetic Magnetic Fields Steer Light On a Chip For Faster Communications (phys.org) 8

Researchers in China have created synthetic magnetic fields within silicon photonic crystals, allowing them to steer and control light on a chip with unprecedented precision. "Beyond immediate applications, the work opens new avenues for studying quantum-inspired phenomena with light," reports Phys.org. "The ability to impose artificial gauge fields in photonic systems could enable devices for optical computing, quantum information, and advanced communication technologies." Slashdot reader alternative_right shares an excerpt from the report: The team achieved this by systematically altering the symmetry of tiny repeating units in silicon photonic crystals. Adjusting the degree of local asymmetry at each point allowed them to 'design' pseudomagnetic fields with tailored spatial patterns, without breaking fundamental time-reversal symmetry. Both theoretical analysis and experiments confirmed that these engineered fields can guide and manipulate light in versatile ways. To demonstrate practical applications, the researchers built two devices commonly used in integrated optics. One was a compact S-shaped waveguide bend that transmitted light with less than 1.83 decibels of signal loss. The other was a power splitter that divided light into two equal paths with low excess loss and minimal imbalance. In a final test, the devices successfully transmitted a high-speed data stream at 140 gigabits per second using a standard telecommunications modulation format, showing that the technique is compatible with existing optical communication systems. The research has been published in Advanced Photonics.
Transportation

US EV Sales Smash Records In August (electrek.co) 94

US EV sales hit a record 146,332 in August, grabbing nearly 10% of all new car sales, according to Kelley Blue Book. That's the highest yet and up from 9.1% in July. Electrek reports: With the federal EV tax credit set to expire on September 30, analysts say Q3 2025 is shaping up to be the strongest quarter for EV sales in US history. The current record holder is Q4 2024, when 365,824 EVs were sold.

Prices ticked higher, too. The average transaction price (ATP) for an EV in August was $57,245, 3.1% more than July's revised lower ATP of $55,562. Year-over-year, though, EV prices were basically flat, down just 0.1%. The wave of EV sales also helped push up the overall market's ATP.

Incentives, while not as high as July's record, remained hefty. EV buyers received discounts averaging over $9,000 in August, equal to 16% of ATP. That's more than double the incentive rate in the overall auto market and up from 13.6% a year ago.
A separate report from Rho Motion found that global EV sales surged 25% in 2025, led by strong growth in Europe and China. "That amounts to 12.5 million EVs, although the data combines both battery EVs and plug-in hybrid EVs for the total," reports Ars Technica.

As for North America? "EV sales are still growing but barely -- up just 6 percent between January and August 2025 compared to the same time period in 2024."
China

'China Inside': How Chinese EV Tech Is Reshaping Global Auto Design (yahoo.com) 63

Global automakers are licensing Chinese electric vehicle technology to accelerate development and cut costs. Audi built its E5 Sportback in 18 months using SAIC's batteries, powertrain and software after the Zeekr 001 "shocked quite everyone" in 2021, according to Stefan Poetzl, president of SAIC Audi Sales and Marketing. Toyota and Volkswagen have joint development agreements for China-specific models using GAC and Xpeng technology respectively.

Renault and Ford plan to develop global models on Chinese platforms, according to Reuters. The licensing deals provide Chinese automakers additional revenue amid domestic price wars. Ready-made Chinese EV chassis and software can save billions of dollars and years of development time, industry experts told the publication. CATL and other Chinese suppliers are expanding chassis production for domestic and international customers.
Data Storage

DNA Cassette Tape Can Store Every Song Ever Recorded (newscientist.com) 34

Researchers in China have developed a "DNA cassette," a retro-styled plastic tape embedded with synthetic DNA strands that can store up to 36 petabytes of digital data -- enough to hold every song ever recorded. New Scientist reports: Xingyu Jiang at the Southern University of Science and Technology in Guangdong, China, and his colleagues created the cassette by printing synthetic DNA molecules on to a plastic tape. "We can design its sequence so that the order of the DNA bases (A, T, C, G) represents digital information, just like 0s and 1s in a computer," he says. This means it can store any type of digital file, whether text, image, audio or video.

One problem with previous DNA storage techniques is the difficulty in accessing data, so the team then overlaid a series of barcodes on the tape to assist with retrieval. "This process is like finding a book in the library," says Jiang. "We first need to find the shelf corresponding to the book, then find the book on the corresponding shelf."

The tape is also coated in what the researchers describe as "crystal armor" made of zeolitic imidazolate, which prevents the DNA bonds from breaking down. That means the cassette could store data for centuries without deteriorating. While a traditional cassette tape could boast around 12 songs on each side, 100 meters of the new DNA cassette tape can hold more than 3 billion pieces of music, at 10 megabytes a song. The total data storage capacity is 36 petabytes of data -- equivalent to 36,000 terabyte hard drives.
The research has been published in the journal Science Advances.
Communications

US Warns Hidden Radios May Be Embedded In Solar-Powered Highway Infrastructure (reuters.com) 92

U.S. officials issued an advisory warning that foreign-made solar-powered highway infrastructure may contain hidden radios embedded in inverters and batteries. Reuters reports: The advisory, disseminated late last month by the U.S. Department of Transportation's Federal Highway Administration, comes amid escalating government action over the presence of Chinese technology in America's transportation infrastructure. The four-page security note, a copy of which was reviewed by Reuters, said that undocumented cellular radios had been discovered "in certain foreign-manufactured power inverters and BMS," referring to battery management systems.

The note, which has not previously been reported, did not specify where the products containing undocumented equipment had been imported from, but many inverters are made in China. There is increasing concern from U.S. officials that the devices, along with the electronic systems that manage rechargeable batteries, could be seeded with rogue communications components that would allow them to be remotely tampered with on Beijing's orders. [...]

The August 20 advisory said the devices were used to power a range of U.S. highway infrastructure, including signs, traffic cameras, weather stations, solar-powered visitor areas and warehouses, and electric vehicle chargers. The risks it cited included simultaneous outages and surreptitious theft of data. The alert suggested that relevant authorities inventory inverters across the U.S. highway system, scan devices with spectrum analysis technology to detect any unexpected communications, disable or remove any undocumented radios, and make sure their networks were properly segmented.

China

Reuters Withdraws Xi, Putin Longevity Video After China State TV Pulls Legal Permission To Use It (reuters.com) 93

An anonymous reader writes: Reuters News on Friday withdrew a four-minute video containing an exchange between Russian President Vladimir Putin and Chinese President Xi Jinping discussing the possibility that humans can live to 150 years old, after China state TV demanded its removal and withdrew the legal permission to use it.

The footage, which included the open mic exchange from the military parade in Beijing marking the 80th anniversary of the end of World War Two, was licensed by the China state television network, China Central Television (CCTV). The clips were edited by Reuters into a four-minute video and distributed to more than 1,000 global media clients including major international news broadcasters and TV stations around the world. Other news agency licensees of CCTV also distributed edits of the footage.

Reuters removed the video from its website and issued a "kill" order to its clients on Friday after receiving a written request from CCTV's lawyer. The letter said the news agency exceeded usage terms of its agreement. The letter further criticized Reuters "editorial treatment applied to this material," but did not specify details.

United States

US Tech Companies Enabled the Surveillance and Detention of Hundreds of Thousands in China (apnews.com) 29

An Associated Press investigation based on tens of thousands of leaked documents revealed Tuesday that American technology companies designed and built core components of China's surveillance apparatus over the past 25 years, selling billions of dollars in equipment to Chinese police and government agencies despite warnings about human rights abuses.

IBM partnered with Chinese defense contractor Huadi in 2009 to develop predictive policing systems for the "Golden Shield" project, AP reports, citing classified government blueprints. The technology enabled mass detentions in Xinjiang, where administrators assigned 100-point risk scores to Uyghurs with deductions for growing beards or being aged 15-55. Dell promoted a laptop with "all-race recognition" capabilities on its WeChat account in 2019. Thermo Fisher Scientific marketed DNA kits as "designed" for ethnic minorities including Uyghurs and Tibetans until August 2024.

Oracle, Microsoft, HP, Cisco, Intel, NVIDIA, and VMware sold geographic mapping software, facial recognition systems, and cloud infrastructure to Chinese police through the 2010s. The surveillance network tracks "key persons" whose movements are restricted and monitored, with one estimate suggesting 55,000 to 110,000 people were placed under residential surveillance in the past decade. China now has more surveillance cameras than the rest of the world combined.
Security

Jaguar Land Rover Extends Shutdown After Cyber Attack 36

Jaguar Land Rover has extended the shutdown of its UK and overseas factories after a cyberattack forced it to take IT systems offline, disrupting production, dealerships, and suppliers. The BBC reports: Jaguar Land Rover's (JLR) UK factories are now expected to remain closed until at least Wednesday after work was disrupted by a cyber attack just over a week ago. The car plants at Halewood and Solihull and its Wolverhampton engine facility, along with production facilities in Slovakia, China and India, have been unable to operate since the company fell victim to the cyber attack. Staff who work on the production lines have been told to remain at home. JLR shut down its IT systems in response to the attack on 31 August, in order to protect them from damage. However, this caused major disruption. [...]

Under normal circumstances, the company builds about 1,000 cars a day. The production stoppage has had a significant impact on the company's suppliers, with some understood to have told their own staff not to come into work. As well as forcing the factories to stop building cars, it also left dealerships unable to register new cars and garages that maintain JLR vehicles unable to order the parts they needed -- although it is understood workarounds have since been put in place. The attack began at what is traditionally a popular time for consumers to take delivery of new vehicles. The latest batch of new registration plates became available on Monday, September 1.
China

Chinese Hackers Impersonated US Lawmaker in Email Espionage Campaign (msn.com) 25

As America's trade talks with China were set to begin last July, a "puzzling" email reached several U.S. government agencies, law firms, and trade groups, reports the Wall Street Journal. It appeared to be from the chair of a U.S. Congressional committee, Representative John Moolenaar, asking recipients to review an alleged draft of upcoming legislation — sent as an attachment. "But why had the chairman sent the message from a nongovernment address...?"

"The cybersecurity firm Mandiant determined the spyware would allow the hackers to burrow deep into the targeted organizations if any of the recipients had opened the purported draft legislation, according to documents reviewed by The Wall Street Journal." It turned out to be the latest in a series of alleged cyber espionage campaigns linked to Beijing, people familiar with the matter said, timed to potentially deploy spyware against organizations giving input on President Trump's trade negotiations. The FBI and the Capitol Police are investigating the Moolenaar emails, and cyber analysts traced the embedded malware to a hacker group known as APT41 — believed to be a contractor for Beijing's Ministry of State Security... The hacking campaign appeared to be aimed at giving Chinese officials an inside look at the recommendations Trump was receiving from outside groups. It couldn't be determined whether the attackers had successfully breached any of the targets.

A Federal Bureau of Investigation spokeswoman declined to provide details but said the bureau was aware of the incident and was "working with our partners to identify and pursue those responsible...." The alleged campaign comes as U.S. law-enforcement officials have been surprised by the prolific and creative nature of China's spying efforts. The FBI revealed last month that a Beijing-linked espionage campaign that hit U.S. telecom companies and swept up Trump's phone calls actually targeted more than 80 countries and reached across the globe...

The Moolenaar impersonation comes as several administration officials have recently faced impostors of their own. The State Department warned diplomats around the world in July that an impostor was using AI to imitate Secretary of State Marco Rubio's voice in messages sent to foreign officials. Federal authorities are also investigating an effort to impersonate White House chief of staff Susie Wiles, the Journal reported in May... The FBI issued a warning that month that "malicious actors have impersonated senior U.S. officials" targeting contacts with AI-generated voice messages and texts.

And in January, the article points out, all the staffers on Moolenaar's committee "received emails falsely claiming to be from the CEO of Chinese crane manufacturer ZPMC, according to people familiar with the episode."

Thanks to long-time Slashdot reader schwit1 for sharing the news.
Robotics

How Close Are We to Humanoid Robots? (msn.com) 92

At CES in January, Nvidia's CEO Jensen Huang "stood flanked by 14 humanoid robots from different companies," remembers the Washington Post. But how close are we to real-world robot deployments?

Agility Robotics "says its factory is designed to eventually manufacture 10,000 robots a year," the Post adds (with "some" of its robots "already at work in e-commerce warehouses and auto parts factories.") Amazon even invested $150 million in the 10-year-old company (spun out from Oregon State University's robotics lab) in 2022, according to the article, "and has tested the company's robots in its warehouses." The e-commerce revolution has spawned sprawling warehouses across the country where products must be organized and customer orders assembled and shipped, but some human workers have said the repetitive work is low paid and leaves them prone to injury. Agility rents out its robots to warehouse owners it says have struggled to keep their human jobs filled, including logistics company GXO, which uses them at a warehouse for Spanx shapewear in Flowery Branch, Georgia, northeast of Atlanta. The robots pick up baskets of clothing from wheeled robots and walk them over to conveyor belts that take them to other parts of the facility.

Agility Chief Business Officer Daniel Diez said facilities like this represent a first step for humanoid robots into gainful employment. "This work gets paid, and we have eyes on large-scale deployments just doing this, and that's what we're focused on," he said. German auto parts company Schaeffler uses Agility robots to load and unload equipment at a factory in Cheraw, South Carolina. Auto part plants have become a favored proving ground for humanoid robots, with Boston Dynamics, the company famous for its videos of back-flipping robots, doing tests with its majority owner, Hyundai.

But meanwhile, RoboForce makes a robot that has two arms on a base with four wheels, the article notes, "providing stability and making it possible to lift more weight than a bipedal robot." Humanoid designs make sense "if it is so important to justify the trade-off and sacrifice of other things," RoboForce CEO Leo Ma tells the Post. "Other than that, there is a great invention called wheels."

Still, the article argues there's "a new drive to make humanoid robots practical," fueled by "the surge of investment in AI" combined with advancements in robotics that "make humanoid designs more capable and affordable." Years of steady progress have made legged robots better at balancing and stepping through tricky terrain. Improved batteries allow them to operate for longer without trailing industrial power cords. AI developers are adapting the innovations behind services like ChatGPT to help humanoids act more independently... The progress has triggered a frenzy of investment in humanoid robots and made them into a mascot for the idea that AI will soon reorder the world on the scale tech leaders have promised... Venture capitalists have invested over $5 billion in humanoid robotics start-ups since the beginning of 2024, according to financial data firm Pitchbook, and the largest tech corporations are also placing bets... Meta is working on integrating its own AI technology with humanoid robots, and Google researchers are collaborating with Austin-based humanoid robot start-up Apptronik... A host of humanoid robot companies has spawned in China, the world leader in complex manufacturing, where the government is subsidizing the industry. Six of the 14 robots that shared the stage with Nvidia's Huang were made by Chinese companies; five were American.
"China's Unitree sells a 77-pound humanoid that stands 4-foot-3 for $16,000..."
Power

Bill Gates-Backed Nuclear Fusion Developer Wants to Deploy a Reactor in Japan (japantimes.co.jp) 73

"A U.S.-based nuclear fusion developer wants to deploy a reactor in Japan in the late 2030s or early 2040s," reports Bloomberg, "in line with the Asian country's broader plans to adopt the potent, low-carbon energy source." Commonwealth Fusion Systems, which last week announced it raised $863 million from investors including Nvidia, has been in dialogue with Japanese government officials on the use of its technology, CEO Bob Mumgaard said in an interview in Tokyo on Wednesday... Several countries are eyeing the technology for its climate and energy security benefits but only some, like China, the U.S., Russia and South Korea have managed to crack the basics. Japan revised its national strategy in June to support fusion deployment and build a demonstration plant in the 2030s.
The article notes that Commonwealth "does not currently have any reactors in operation" — but that Mitsubishi this week invested in the company, in collaboration with a consortium of 12 Japanese companies. From Mitsubishi's announcement: The Japanese Consortium will acquire technical and commercial expertise in policy, regulatory, and the development, construction, operation, and maintenance of ARC [power plant] from CFS's commercialization projects in the United States. In addition, each consortium company will bring together its know-how and expertise and aspire to expedite the commercialization and industrialization of fusion energy power generation in Japan.
Supercomputing

Europe Hopes To Join Competitive AI Race With Supercomputer Jupiter (france24.com) 41

Europe on Friday inaugurated Jupiter, its first exascale supercomputer and the most powerful AI machine on the continent. Built in Germany with 24,000 Nvidia chips, the 500-million-euro system aims to close the AI gap with the US and China while also advancing climate modeling, neuroscience, and renewable energy research. France 24 reports: Based at Juelich Supercomputing Centre in western Germany, it is Europe's first "exascale" supercomputer -- meaning it will be able to perform at least one quintillion (or one billion billion) calculations per second. The United States already has three such computers, all operated by the Department of Energy. Jupiter is housed in a centre covering some 3,600 meters (38,000 square feet) -- about half the size of a football pitch -- containing racks of processors, and packed with about 24,000 Nvidia chips, which are favored by the AI industry.

Half the 500 million euros ($580 million) to develop and run the system over the next few years comes from the European Union and the rest from Germany. Its vast computing power can be accessed by researchers across numerous fields as well as companies for purposes such as training AI models. "Jupiter is a leap forward in the performance of computing in Europe," Thomas Lippert, head of the Juelich centre, told AFP, adding that it was 20 times more powerful than any other computer in Germany. [...]

Yes, Jupiter will require on average around 11 megawatts of power, according to estimates -- equivalent to the energy used to power thousands of homes or a small industrial plant. But its operators insist that Jupiter is the most energy-efficient among the fastest computer systems in the world. It uses the latest, most energy-efficient hardware, has water-cooling systems and the waste heat that it generates will be used to heat nearby buildings, according to the Juelich centre.

AI

Anthropic Clamps Down on AI Services for Chinese-Owned Firms (bloomberg.com) 2

Anthropic is blocking its services from Chinese-controlled companies, saying it's taking steps to prevent a US adversary from advancing in AI and threatening American national security. From a report: The San Francisco-based startup is widening existing restrictions on "authoritarian" regimes to cover any company that's majority-owned by entities from countries such as China. That includes their overseas operations, it said in a statement. Foreign-based subsidiaries could be used to access its technology and further military applications, the startup added.

Anthropic's Dario Amodei has publicly advocated technological sanctions on China, particularly after DeepSeek stunned Silicon Valley with an advanced model this year. While Anthropic didn't name any companies, Chinese big tech firms from Alibaba to ByteDance have joined DeepSeek in an intensifying race to build AI services that can rival the likes of OpenAI in the US. Chinese entities "could use our capabilities to develop applications and services that ultimately serve adversarial military and intelligence services and broader authoritarian objectives," Anthropic said in its Friday post.

AI

India's AI Story Is 'All Talk, Little Substance,' Says Bernstein (indiadispatch.com) 11

Investment research firm Bernstein warned Thursday that India faces a "strategic tech crisis" as US technology giants deploy predatory pricing strategies to lock up the Indian AI market. Perplexity Pro launched free for one year to Airtel's 350 million subscribers while OpenAI introduced a $5 monthly India subscription compared to $20 in the United States.

Bernstein analysts described regulatory "double standards" where foreign tech companies receive favorable treatment while domestic companies face what the firm called "crushing rules and government-led 'tech stacks' that make private business unviable." Private AI investment in India totaled $11.29 billion between 2013 and 2024 compared to $471 billion in the United States and $119 billion in China. From the report: When OpenAI, which is reportedly looking to set up a data center in India, announced the plans to launch a new office, it was met with another round of excitement -- "as if Open AI will hire all Indians at hefty salaries," the firm wrote in a note to clients Thursday. Bernstein analysts pour cold water on this excitement, dismissing it as a "repeat of the 90s" and arguing that the hype misses the fundamental power imbalance.

"Anyone, we repeat anyone, can build a data center... This is the start of the dominance of US tech in Indian AI environment ensuring Indian entrepreneurs do not get a fighting chance to stay relevant. They will run on the sidelines - piggybacking on the US foundation models or maybe even the Chinese," they wrote.

Medicine

Putin and Xi Caught Discussing Organ Transplants and Immortality 128

An anonymous reader quotes a report from The Hill: Russian President Vladimir Putin and Chinese President Xi Jinping were caught on a hot mic discussing organ transplants and immortality at the military parade in Beijing on Wednesday. The two leaders were captured on the stream as they walked with North Korean leader Kim Jong Un at Tiananmen Square, with the Russian translator saying: "Biotechnology is continuously developing," according to Reuters. "Human organs can be continuously transplanted. The longer you live, the younger you become, and (you can) even achieve immortality," the translator added.

Xi responded by saying that some predict that humans could live up to "150 years old." The Kremlin head later confirmed that the two leaders discussed immortality. "Modern means of healing, and medical means, all kinds of surgical means related to organ replacement, they allow humanity to hope that active life will continue not as it does today. The average age in different countries is different, but nevertheless, life expectancy will increase significantly," Putin told reporters, according to CNN.
Businesses

The Age of Cheap Online Shopping is Ending (theatlantic.com) 258

The century-old duty-free import exemption that transformed American online shopping has ended, The Atlantic argues, closing a loophole that allowed packages valued under $800 to enter the United States without tariffs. The de minimis threshold, raised from $200 in 2016, processed millions of daily shipments directly from overseas sellers to American consumers.

China lost access earlier this year; the exemption now terminates for all countries. Platforms including Shein, Temu, and marketplace sellers on Amazon, Etsy, and eBay built business models around direct shipping from manufacturing hubs in Asia and elsewhere. Import duties will apply to all international packages regardless of value, with tariffs reaching 50% for some countries. The policy shift affects everything from $30 specialty faucet parts shipped from Britain to handmade crafts from India, fundamentally altering the economics of cross-border e-commerce that emerged over the past decade.
Intel

Intel Get $5.7 Billion Early. What's the Government's Strategy? (msn.com) 93

Intel amended its deal with the U.S. Department of Commerce "to remove earlier project milestones," reports Reuters, "and received about $5.7 billion in cash sooner than planned."

"The move will give Intel more flexibility over the funds." The amended agreement, which revises a November 2024 funding deal, retains some guardrails that prevent the chipmaker from using the funds for dividends and buybacks, doing certain control-changing deals and from expanding in certain countries.
The move makes the Wall Street Journal wonder what, beyond equity, the U.S. now gets in return, calling government's position "a stake without a strategy." The U.S. has historically shied away from putting money into private business. It can't really outguess the market on where the most promising returns lie. Yet there are exceptions. Sometimes a company or industry risks failing without public support, and that failure would hurt the whole country, not just its shareholders and employees. Intel meets both conditions. It isn't failing, but it is losing money, its core business is in decline, and it lacks the capital and customers needed to make the most advanced semiconductors. If Intel were to fail, it would take a sizable chunk of the semiconductor industrial base with it. At a time of existential competition with China, that is a national emergency...

[U.S. Commerce Secretary Howard Lutnick] said as a shareholder, the U.S. would help Intel "to create the most advanced chips in the world." And yet the deal doesn't provide Intel with new resources to accomplish that. Rather, to get the remaining $9 billion, Intel had to give the U.S. equity. This is more like a tax than an investment: Shareholders gave up a 10th of their ownership in return for money the company was supposed to get anyway... Some of the administration's forays into private business do reflect strategic thinking, such as the Pentagon's 15% stake in MP Materials in exchange for investment and contracts that help make the company a viable alternative to China as a supplier of rare-earth magnets for products such as automobiles, wind turbines, jet fighters and missile systems. But more often, companies recoil from government ownership...

Though the U.S. stake dilutes Intel's existing shareholders, its stock has held up. There could be several reasons. It eliminates uncertainty over whether the remaining $9 billion in federal funds will be forthcoming... [B]ecause Washington has a vested interest in Intel's share price, investors believe it may prod companies such as Nvidia and Apple to buy more of its chips.

But that only goes so far, the article seems to conclude, offering this quote from an analyst Bernstein investment research. "If Intel can prove they can make these leading-edge products in high volume that meets specifications at a good cost structure, they'll have customers lined up around the block. If they can't prove they can do it, what customer will put meaningful volume to them regardless of what pressure the U.S. government brings to bear?"

CBS News also notes the U.S. government stake "is being criticized by conservatives and some economic policy experts alike, who worry such extensive government intervention undermines free enterprise."

Thanks to Slashdot reader joshuark for sharing the news.
AI

Alibaba Creates AI Chip To Help China Fill Nvidia Void 29

Alibaba, China's largest cloud-computing company, has developed a domestically manufactured, versatile inference chip to fill the gap left by U.S. restrictions on Nvidia's sales in China. The Wall Street Journal reports: Previous cloud-computing chips developed by Alibaba have mostly been designed for specific applications. The new chip, now in testing, is meant to serve a broader range of AI inference tasks, said people familiar with it. The chip is manufactured by a Chinese company, they said, in contrast to an earlier Alibaba AI processor that was fabricated by Taiwan Semiconductor Manufacturing. Washington has blocked TSMC from manufacturing AI chips for China that use leading-edge technology.

[...] Private-sector cloud companies including Alibaba have refrained from bulk orders of Huawei's chips, resisting official suggestions that they should help the national champion, because they consider Huawei a direct rival in cloud services, people close to the firms said. China's biggest weakness is training AI models, for which U.S. companies rely on the most powerful Nvidia products. Alibaba's new chip is designed for inference, not training, people familiar with it said. Chinese engineers have complained that homegrown chips including Huawei's run into problems when training AI, such as overheating and breaking down in the middle of training runs. Huawei declined to comment.
China

China Turns On Giant Neutrino Detector That Took a Decade To Build (theregister.com) 26

China has turned on the world's most sensitive neutrino detector after more than a decade of construction. The Register reports: The Jiangmen Underground Neutrino Experiment (JUNO) is buried 700 meters under a mountain and features a 20,000-tonne "liquid scintillator detector" that China's Academy of Science says is "housed at the center of a 44-meter-deep water pool." There's also a 35.4-meter-diameter acrylic sphere supported by a 41.1-meter-diameter stainless steel truss. All that stuff is surrounded by more than 45,000 photo-multiplier tubes (PMTs). The latter devices are super-sensitive light detectors. A liquid scintillator is a fluid that, when exposed to ionizing radiation, produces light. At JUNO, the liquid is 99.7 percent alkylbenzene, an ingredient found in detergents and refrigerants.

JUNO's designers hope that any neutrinos that pass through its giant tank bonk a hydrogen atom and produce just enough light that the detector array of PMTs can record their passing, producing data scientists can use to learn more about the particles. At this point, readers could sensibly ask how JUNO will catch any of these elusive particles. The answer lies in the facility's location -- a few tens of kilometers away from two nuclear power plants that produce neutrinos.

The Chinese Academy of Science's Journal of High Energy Physics says trials of JUNO succeeded, suggesting it will be able to help scientists understand why some neutrinos are heavier than others so we can begin to classify the different types of the particle -- a key goal for the facility. The Journal also reports that scientists from Japan, the United States, Europe, India, and South Korea, are either already using JUNO or plan experiments at the facility.

China

Pentagon Halts Chinese Coders Affecting DOD Cloud Systems (defense.gov) 27

DOD: Defense Secretary Pete Hegseth said the Pentagon has halted a decade-old Microsoft program that has allowed Chinese coders, remotely supervised by U.S. contractors, to work on sensitive DOD cloud systems. In a digital video address to the public posted yesterday, the secretary said DOD was made aware of the "digital escorts" program last month and that the program has exposed the Defense Department to unacceptable risk -- despite being designed to comply with government contracting rules.

"If you're thinking 'America first,' and common sense, this doesn't pass either of those tests," Hegseth said, adding that he initiated an immediate review of the program upon learning of it. "I want to report our initial findings. ... The use of Chinese nationals to service Department of Defense cloud environments? It's over," he said. Additionally, Hegseth said DOD has issued a formal letter of concern to Microsoft, documenting a breach of trust, and that DOD is requiring a third-party audit of the digital escorts program to pore over the code and submissions made by Chinese nationals. The audit will be free of charge to U.S. taxpayers, he said.

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