"China's navy has apparently tested out a hypersonic rail gun," reports Futurism, describing it as "basically a device that uses a series of electromagnets to accelerate a projectile to incredible speeds."

But "during a demonstration of its power, things didn't go quite as planned." As the South China Morning Post reports, the rail gun test lobbed a precision-guided projectile — or smart bomb — nine miles into the stratosphere. But because it apparently didn't go up as high as it was supposed to, the test was ultimately declared unsuccessful. This conclusion came after an analysis led by Naval Engineering University professor Lu Junyong, whose team found with the help of AI that even though the winged smart bomb exceeded Mach 5 speeds, it didn't perform as well as it could have. This occurred, as Lu's team found, because the projectile was spinning too fast during its ascent, resulting in an "undesirable tilt."
But what's more interesting is the project itself. "Successful or not, news of the test is a pretty big deal given that it was just a few months ago that reports emerged about China's other proposed super-powered rail gun, which is intended to send astronauts on a Boeing 737-size ship into space.... which for the record did not make it all the way to space..." Chinese officials, meanwhile, are paying lip service to the hypersonic rail gun technology's potential to revolutionize civilian travel by creating even faster railways and consumer space launches, too.
Japan and France also have railgun projects, according to a recent article from Defense One. "Yet the nation that has demonstrated the most continuing interest is China," with records of railgun work dating back as far as 2011: The Chinese team claimed that their railgun can fire a projectile 100 to 200 kilometers at Mach 6. Perhaps most importantly, it uses up to 100,000 AI-enabled sensors to identify and fix any problems before critical failure, and can slowly improve itself over time. This, they said, had enabled them to test-fire 120 rounds in a row without failure, which, if true, suggests that they solved a longstanding problem that reportedly bedeviled U.S. researchers. However, the team still has a ways to go before mounting an operational railgun on a ship; according to one Chinese article, the projectiles fired were only 25mm caliber, well below the size of even lightweight naval artillery.

As with many other Chinese defense technology programs, much remains opaque about the program...

While railguns tend to get the headlines, this lab has made advances in a wide range of electric and electromagnetic applications for the PLA Navy's warships. For example, the lab's research on electromagnetic launch technology has also been applied to the development of electromagnetic catapults for the PLAN's growing aircraft carrier fleet...

While it remains to be seen whether the Chinese navy can develop a full-scale railgun, produce it at scale, and integrate it onto its warships, it is obvious that it has made steady advances in recent years on a technology of immense military significance that the US has abandoned.
Thanks to long-time Slashdot reader Tangential for sharing the news.

Earlier this week the Washington Post reported that America's Defense department "is growing concerned that the United Launch Alliance, one of its key partners in launching national security satellites to space, will not be able to meet its needs to counter China and build its arsenal in orbit with a new rocket that ULA has been developing for years." In a letter sent Friday to the heads of Boeing's and Lockheed Martin's space divisions, Air Force Assistant Secretary Frank Calvelli used unusually blunt terms to say he was growing "concerned" with the development of the Vulcan rocket, which the Pentagon intends to use to launch critical national security payloads but which has been delayed for years. ULA, a joint venture of Boeing and Lockheed Martin, was formed nearly 20 years ago to provide the Defense Department with "assured access" to space. "I am growing concerned with ULA's ability to scale manufacturing of its Vulcan rocket and scale its launch cadence to meet our needs," he wrote in the letter, a copy of which was obtained by The Washington Post. "Currently there is military satellite capability sitting on the ground due to Vulcan delays...."

ULA originally won 60 percent of the Pentagon's national security payloads under the current contract, known as Phase 2. SpaceX won an award for the remaining 40 percent, but it has been flying its reusable Falcon 9 rocket at a much higher rate. ULA launched only three rockets last year, as it transitions to Vulcan; SpaceX launched nearly 100, mostly to put up its Starlink internet satellite constellation. Both are now competing for the next round of Pentagon contracts, a highly competitive procurement worth billions of dollars over several years. ULA is reportedly up for sale; Blue Origin is said to be one of the suitors...

In a statement to The Post, ULA said that its "factory and launch site expansions have been completed or are on track to support our customers' needs with nearly 30 launch vehicles in flow at the rocket factory in Decatur, Alabama." Last year, ULA CEO Tory Bruno said in an interview that the deal with Amazon would allow the company to increase its flight rate to 20 to 25 a year and that to meet that cadence it was hiring "several hundred" more employees. The more often Vulcan flies, he said, the more efficient the company would become. "Vulcan is much less expensive" than the Atlas V rocket that the ULA currently flies, Bruno said, adding that ULA intends to eventually reuse the engines. "As the flight rate goes up, there's economies of scale, so it gets cheaper over time. And of course, you're introducing reusability, so it's cheaper. It's just getting more and more competitive."
The article also notes that years ago ULA "decided to eventually retire its workhorse Atlas V rocket after concerns within the Pentagon and Congress that it relied on a Russian-made engine, the RD-180. In 2014, the company entered into a partnership with Jeff Bezos' Blue Origin to provide its BE-4 engines for use on Vulcan. However, the delivery of those engines was delayed for years — one of the reasons Vulcan's first flight didn't take place until earlier this year."

The article says Cavelli's letter cited the Pentagon's need to move quickly as adversaries build capabilities in space, noting "counterspace threats" and adding that "our adversaries would seek to deny us the advantage we get from space during a potential conflict."

"The United States continues to face an unprecedented strategic competitor in China, and our space environment continues to become more contested, congested and competitive."

America's Defense Department "is rushing to expand its capacity to wage war in space," reports the New York Times, "convinced that rapid advances by China and Russia in space-based operations pose a growing threat to U.S. troops and other military assets on the ground and U.S. satellites in orbit." [T]he Defense Department is looking to acquire a new generation of ground- and space-based tools that will allow it to defend its satellite network from attack and, if necessary, to disrupt or disable enemy spacecraft in orbit, Pentagon officials have said in a series of interviews, speeches and recent statements... [T]he move to enhance warfighting capacity in space is driven mostly by China's expanding fleet of military tools in space... [U.S. officials are] moving ahead with an effort they are calling "responsible counterspace campaigning," an intentionally ambiguous term that avoids directly confirming that the United States intends to put its own weapons in space. But it also is meant to reflect this commitment by the United States to pursue its interest in space without creating massive debris fields that would result if an explosive device or missile were used to blow up an enemy satellite. That is what happened in 2007, when China used a missile to blow up a satellite in orbit. The United States, China, India and Russia all have tested such missiles. But the United States vowed in 2022 not to do any such antisatellite tests again.

The United States has also long had ground-based systems that allow it to jam radio signals, disrupting the ability of an enemy to communicate with its satellites, and is taking steps to modernize these systems. But under its new approach, the Pentagon is moving to take on an even more ambitious task: broadly suppress enemy threats in orbit in a fashion similar to what the Navy does in the oceans and the Air Force in the skies.
The article notes a recent report drafted by a former Space Force colonel cited three ways to disable enemy satellite networks: cyberattacks, ground or space-based lasers, and high-powered microwaves. "John Shaw, a recently retired Space Force lieutenant general who helped run the Space Command, agreed that directed-energy devices based on the ground or in space would probably be a part of any future system. 'It does minimize debris; it works at the speed of light,' he said. 'Those are probably going to be the tools of choice to achieve our objective." The Pentagon is separately working to launch a new generation of military satellites that can maneuver, be refueled while in space or have robotic arms that could reach out and grab — and potentially disrupt — an enemy satellite. Another early focus is on protecting missile defense satellites. The Defense Department recently started to require that a new generation of these space-based monitoring systems have built-in tools to evade or respond to possible attack. "Resiliency feature to protect against directed energy attack mechanisms" is how one recent missile defense contract described it. Last month the Pentagon also awarded contracts to two companies — Rocket Lab and True Anomaly — to launch two spacecraft by late next year, one acting as a mock enemy and the other equipped with cameras, to pull up close and observe the threat. The intercept satellite will not have any weapons, but it has a cargo hold that could carry them.
The article notes that Space Force's chief of space operations has told Senate appropriators that about $2.4 billion of the $29.4 billion in Space Force's proposed 2025 budget was set aside for "space domain awareness." And it adds that the Pentagon "is working to coordinate its so-called counterspace efforts with major allies, including Britain, Canada and Australia, through a multinational operation called Operation Olympic Defender. France has been particularly aggressive, announcing its intent to build and launch by 2030 a satellite equipped with a high-powered laser." [W]hat is clear is that a certain threshold has now been passed: Space has effectively become part of the military fighting domain, current and former Pentagon officials said. "By no means do we want to see war extend into space," Lt. Gen. DeAnna Burt, deputy chief of space operations, said at a Mitchell Institute event this year. "But if it does, we have to be prepared to fight and win."

The head of Canada's Security Intelligence Service warned Canadians against using video app TikTok, saying data gleaned from its users "is available to the government of China," CBC News reported on Friday. From a report: "My answer as director of the Canadian Security Intelligence Service (CSIS) is that there is a very clear strategy on the part of the government of China to be able to acquire personal information from anyone around the world," CSIS Director David Vigneault told CBC in an interview set to air on Saturday.

"These assertions are unsupported by evidence, and the fact is that TikTok has never shared Canadian user data with the Chinese government, nor would we if asked," a TikTok spokesperson said in response to a request for comment. Canada in September ordered a national security review of a proposal by TikTok to expand the short-video app's business in the country. Vigneault said he will take part in that review and offer advice, CBC reported.

Volkswagen has walked away from talks with Renault to jointly develop an affordable electric version of the Twingo car, Reuters reported Friday, citing sources familiar with the situation, in a setback for the EU carmakers' efforts to fend off Chinese rivals. From the report: The collapse of negotiations could mean the German carmaker may have to go it alone in developing its own affordable electric vehicle (EV). Renault will continue designing its electric Twingo, scheduled to hit the market in 2026. Both had hoped that sharing the work would cut costs that represent a key hurdle for European carmakers in the face of cheaper cars from China.

Volkswagen broke off discussions mainly because Renault had wanted to build the car in one of its plants at a time when VW is seeking to fully utilise its European production network, one of the sources said.

Microsoft is asking hundreds of employees in its China-based cloud-computing and AI operations to consider transferring outside the country, as tensions between Washington and Beijing mount around the critical technology. WSJ: Such staff, mostly engineers with Chinese nationality, were recently offered the opportunity to transfer to countries including the U.S., Ireland, Australia and New Zealand, people familiar with the matter said. The company is asking about 700 to 800 people [non-paywalled link], who are involved in machine learning and other work related to cloud computing, one of the people said.ÂThe move by one of America's biggest cloud-computing and AI companies comes as the Biden administration seeks to put tighter curbs around China's capability to develop state-of-the-art AI. The White House is considering new rules that would require Microsoft and other U.S. cloud-computing companies to get licenses before giving Chinese customers access to AI chips.

An anonymous reader quotes a report from New Scientist: Efforts to build a global quantum internet have received a boost from two developments in quantum information storage that could one day make it possible to communicate securely across hundreds or thousands of kilometers. The internet as it exists today involves sending strings of digital bits, or 0s and 1s, in the form of electrical or optical signals, to transmit information. A quantum internet, which could be used to send unhackable communications or link up quantum computers, would use quantum bits instead. These rely on a quantum property called entanglement, a phenomenon in which particles can be linked and measuring one particle instantly influences the state of another, no matter how far apart they are. Sending these entangled quantum bits, or qubits, over very long distances, requires a quantum repeater, a piece of hardware that can store the entangled state in memory and reproduce it to transmit it further down the line. These would have to be placed at various points on a long-distance network to ensure a signal gets from A to B without being degraded.

Quantum repeaters don't yet exist, but two groups of researchers have now demonstrated long-lasting entanglement memory in quantum networks over tens of kilometers, which are the key characteristics needed for such a device. Can Knaut at Harvard University and his colleagues set up a quantum network consisting of two nodes separated by a loop of optical fibre that spans 35 kilometers across the city of Boston. Each node contains both a communication qubit, used to transmit information, and a memory qubit, which can store the quantum state for up to a second. "Our experiment really put us in a position where we're really close to working on a quantum repeater demonstration," says Knaut. To set up the link, Knaut and his team entangled their first node, which contains a type of diamond with an atom-sized hole in it, with a photon that they sent to their second node, which contains a similar diamond. When the photon arrives at the second diamond, it becomes entangled with both nodes. The diamonds are able to store this state for a second. A fully functioning quantum repeater using similar technology could be demonstrated in the next couple of years, says Knaut, which would enable quantum networks connecting cities or countries.

In separate work, Xiao-Hui Bao at the University of Science and Technology of China and his colleagues entangled three nodes together, each separated by around 10 kilometers in the city of Hefei. Bao and his team's nodes use supercooled clouds of hundreds of millions of rubidium atoms to generate entangled photons, which they then sent across the three nodes. The central of the three nodes is able to coordinate these photons to link the atom clouds, which act as a form of memory. The key advance for Bao and his team's network is to match the frequency of the photons meeting at the central node, which will be crucial for quantum repeaters connecting different nodes. While the storage time was less than Knaut's team, at 100 microseconds, it is still long enough to perform useful operations on the transmitted information.

A bipartisan group of four senators led by Majority Leader Chuck Schumer is recommending that Congress spend at least $32 billion over the next three years to develop AI and place safeguards around it, writing in a report released Wednesday that the U.S. needs to "harness the opportunities and address the risks" of the quickly developing technology. AP: The group of two Democrats and two Republicans said in an interview Tuesday that while they sometimes disagreed on the best paths forward, it was imperative to find consensus with the technology taking off and other countries like China investing heavily in its development. They settled on a raft of broad policy recommendations that were included in their 33-page report. While any legislation related to AI will be difficult to pass, especially in an election year and in a divided Congress, the senators said that regulation and incentives for innovation are urgently needed.

The United States is heading to Geneva this week to start a series of diplomatic talks with the Chinese government about artificial intelligence safety and risk standards. From a report: The U.S. and China are in tight competition to dominate the AI market, both in the private sector and within their own governments. However, the two world powers have yet to agree on what it means to safely use the technologies they're developing.

The United States and China will meet in Switzerland on Tuesday, senior administration officials told reporters during a briefing Friday. Officials from the White House and State Department will lead the U.S. delegation in the talks, while China will bring a delegation co-led by its Ministry of Foreign Affairs and National Development and Reform Commission. The talks will primarily focus on AI risk and safety "with an emphasis on advanced systems," one official said. Officials from the U.S. and China also plan to discuss the work they're doing in their own countries domestically to address AI risks.

Brian Shelton's type 1 diabetes was treated with an infusion of insulin-producing pancreas cells (grown from stem cells). In 2021, the New York Times reported: Now his body automatically controls its insulin and blood sugar levels. Shelton, now 64, may be the first person cured of the disease with a new treatment that has experts daring to hope that help may be coming for many of the 1.5 million Americans suffering from Type 1 diabetes. "It's a whole new life," Shelton said. Diabetes experts were astonished but urged caution. The study is continuing and will take five years, involving 17 people with Type 1 diabetes.
"By fall 2023, three patients, including Shelton, had achieved insulin independence by day 180 post-transplant," MedScape reported (in January of 2024): In the phase 1/2 study, 14 patients with type 1 diabetes and impaired hypoglycemia awareness or recurrent hypoglycemia received portal vein infusions of VX-880 [Vertex Pharmaceutical's pancreatic islet cell replacement therapy] along with standard immunosuppression. As of the last data cut, all 14 patients demonstrated islet cell engraftment and production of endogenous insulin. After more than 90 days of follow-up, 13 of the patients have achieved A1c levels < 7% without using exogenous insulin.
Brian Shelton and another patient died, and while Vertex says their deaths were unrelated to the treatment, they have "placed the study on a protocol-specified pause, pending review of the totality of the data by the independent data monitoring committee and global regulators." (MedScape adds that Vertex "is continuing with a phase 1/2 clinical trial of a different product, VX-264, which encapsulates the same VX-880 cells in a device designed to eliminate the need for immunosuppression.")

And meanwhile, a new study in China (again using stem cell-derived islet tissue) has provided "encouraging evidence that islet tissue replacement is an effective cure for diabetic patients," the researchers wrote in Nature. The treatment was administered to 59-year-old, type-2 diabetic.

"Marked changes in the patient's glycemic control were observed as early as week 2," the researchers write, and after week 32, the patient's Time In Tight Range (TITR) "had readily reached 99% and was maintained thereafter."

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

Tim Levin reports via InsideEVs: Two things of note in the electric vehicle world happened today around the same time. First, the Geely Group-owned Chinese EV brand Zeekr debuted on the New York Stock Exchange today at a valuation of around $5.2 billion. Then, around 250 miles south in Washington, D.C., news emerged that the Biden Administration is set to quadruple tariffs on Chinese-made electric cars if they hit American roads. The timing may be purely coincidental. But after this week, one thing feels clearer than ever: the automotive Cold War between China and the West is fully underway, and EVs specifically are at the center of it all.

The Wall Street Journal got the scoop that the White House plans to announce higher tariffs on Chinese clean-energy imports in the coming days. Under the reported new policies, tariffs on Chinese EVs are set to quadruple, rising from the current 25% to a whopping 100%, anonymous sources told the outlet. In theory, that would substantially increase the cost of any Chinese-made EVs on our market, including, potentially, ones sold by known Western and other Asian brands. It's no secret why the U.S. is attempting to push back on Chinese EVs, to say nothing of other clean energy imports from that country like solar panels. China has spent years aggressively building up its capacity to manufacture electric cars. It's developed a stranglehold on the supply chains for lithium-ion batteries and the critical minerals they contain. It has lavished state incentives on both EV production and purchasing. In recent years, the country has emerged as a global EV powerhouse -- and, for the first time ever, an exporter on par with leaders like Japan and Germany.

Many still believe that China's cars are cheap and technologically subpar. But the truth is China has learned to build cars very, very well, as InsideEVs' own Kevin Williams discovered during a recent trip to the Beijing auto show. China's homegrown electrified vehicles range from the inexpensive -- some, like the BYD Seagull, cost less than $10,000 in their home market -- to higher-end, luxury-focused offerings like the Yangwang U8, a kind of plug-in hybrid competitor to the Mercedes G-Class that can "float" on water. From batteries to software, most are incredibly advanced. Car companies and policymakers in the U.S. (and Europe) say these cars pose a real threat to our nascent EV market, where many options still remain unaffordable and things like batteries and software are works in progress. In response, European Union officials have also launched investigations into Chinese imports that could lead to stronger tariffs. "In effect, the tariffs may end up buying the U.S. some time, rather than being a permanent solution here," concludes Levin. "After all, as Kevin Williams pointed out after going to Beijing: all of these crackdowns aren't guaranteed to yield better cars from Ford, General Motors and the rest."

According to the WSJ, the new tariffs on Chinese goods will also apply to solar panels, batteries and critical battery minerals. They're expected to be announced as soon as next week.

Search giant Baidu fires its head of public relations after she outraged Gen Z workers. From a report [non-paywalled link]: The head of public relations at a major Chinese tech firm gained hundreds of thousands of followers seemingly overnight after posting a series of viral videos laying out her unapologetically tyrannical management style. The videos also earned her a pink slip from her employer after they set off an explosion of criticism among Gen Z Chinese fed up with the intense work culture that prevails in their country's tech industry.

"I'm not your mother-in-law. I'm not your mom," Qu Jing, a vice president at Chinese search giant Baidu, said in one widely excoriated clip, referring to a colleague who was struggling with a recent breakup. "I only care about your results." In other videos, she criticized employees who didn't want to work weekends and dismissed complaints from one subordinate that messages she sent to a group chat late at night had kept a crying child awake. "Why should it be my business that your child was crying?" she said.

On Thursday, as public outrage soared, Qu removed the videos from her account on Douyin, TikTok's sister platform in China, and replaced them with an apology. She said she had tried to do a good job but had been too impatient and hadn't adopted "a proper approach." Baidu Chief Executive Robin Li was furious at Qu and fired her on Thursday, according to people familiar with the matter. A top Baidu executive told employees that Qu's comments were "inappropriate and didn't represent and reflect the real culture and values of Baidu," the people said. The management also promised to review the company's corporate culture and working systems, they said.

China's hard-charging tech industry relies heavily on a Darwinian work culture that demands near-total devotion to the workplace. Tech workers coined the term "996" to describe the typical schedule: 9 a.m. to 9 p.m., six days a week. Half a decade ago, videos like Qu's were just as likely to garner a shrug as generate controversy. But younger Chinese, much like their counterparts in the U.S., are increasingly skeptical of the pressure to work themselves ragged in pursuit of financial success. They have coined their own terms -- "lying flat" and "letting it rot" -- to describe their antipathy to the grinding ethos of 996.

An anonymous reader quotes a report from MIT Technology Review: Once a week, Sun Kai has a video call with his mother. He opens up about work, the pressures he faces as a middle-aged man, and thoughts that he doesn't even discuss with his wife. His mother will occasionally make a comment, like telling him to take care of himself -- he's her only child. But mostly, she just listens. That's because Sun's mother died five years ago. And the person he's talking to isn't actually a person, but a digital replica he made of her -- a moving image that can conduct basic conversations. They've been talking for a few years now. After she died of a sudden illness in 2019, Sun wanted to find a way to keep their connection alive. So he turned to a team at Silicon Intelligence, an AI company based in Nanjing, China, that he cofounded in 2017. He provided them with a photo of her and some audio clips from their WeChat conversations. While the company was mostly focused on audio generation, the staff spent four months researching synthetic tools and generated an avatar with the data Sun provided. Then he was able to see and talk to a digital version of his mom via an app on his phone.

"My mom didn't seem very natural, but I still heard the words that she often said: 'Have you eaten yet?'" Sun recalls of the first interaction. Because generative AI was a nascent technology at the time, the replica of his mom can say only a few pre-written lines. But Sun says that's what she was like anyway. "She would always repeat those questions over and over again, and it made me very emotional when I heard it," he says. There are plenty of people like Sun who want to use AI to preserve, animate, and interact with lost loved ones as they mourn and try to heal. The market is particularly strong in China, where at least half a dozen companies are now offering such technologies and thousands of people have already paid for them. In fact, the avatars are the newest manifestation of a cultural tradition: Chinese people have always taken solace from confiding in the dead.

The technology isn't perfect -- avatars can still be stiff and robotic -- but it's maturing, and more tools are becoming available through more companies. In turn, the price of "resurrecting" someone -- also called creating "digital immortality" in the Chinese industry -- has dropped significantly. Now this technology is becoming accessible to the general public. Some people question whether interacting with AI replicas of the dead is actually a healthy way to process grief, and it's not entirely clear what the legal and ethical implications of this technology may be. For now, the idea still makes a lot of people uncomfortable. But as Silicon Intelligence's other cofounder, CEO Sima Huapeng, says, "Even if only 1% of Chinese people can accept [AI cloning of the dead], that's still a huge market."

The Biden administration is poised to open up a new front in its effort to safeguard U.S. AI from China with preliminary plans to place guardrails around the most advanced AI models, the core software of artificial intelligence systems like ChatGPT, Reuters reported Wednesday. From the report: The Commerce Department is considering a new regulatory push to restrict the export of proprietary or closed source AI models, whose software and the data it is trained on are kept under wraps, three people familiar with the matter said. Any action would complement a series of measures put in place over the last two years to block the export of sophisticated AI chips to China in an effort to slow Beijing's development of the cutting edge technology for military purposes. Even so, it will be hard for regulators to keep pace with the industry's fast-moving developments.

Currently, nothing is stopping U.S. AI giants like Microsoft-backed OpenAI, Alphabet's Google DeepMind and rival Anthropic, which have developed some of the most powerful closed source AI models, from selling them to almost anyone in the world without government oversight. Government and private sector researchers worry U.S. adversaries could use the models, which mine vast amounts of text and images to summarize information and generate content, to wage aggressive cyber attacks or even create potent biological weapons. To develop an export control on AI models, the sources said the U.S. may turn to a threshold contained in an AI executive order issued last October that is based on the amount of computing power it takes to train a model. When that level is reached, a developer must report its AI model development plans and provide test results to the Commerce Department.

An anonymous reader quotes a report from MSN: The US has revoked licenses allowing Huawei to buy semiconductors from Qualcomm and Intel, according to people familiar with the matter, further tightening export restrictions against the Chinese telecom equipment maker. Withdrawal of the licenses affects US sales of chips for use in Huawei phones and laptops, according to the people, who discussed the move on condition of anonymity. House Foreign Affairs Committee Chairman Michael McCaul confirmed the administration's decision in an interview Tuesday. He said the move is key to preventing China from developing advanced AI. "It's blocking any chips sold to Huawei," said McCaul, a Texas Republican who was briefed about the license decisions for Intel and Qualcomm. "Those are two companies we've always worried about being a little too close to China."

While the decision may not affect a significant volume of chips, it underscores the US government's determination to curtail China's access to a broad swathe of semiconductor technology. Officials are also considering sanctions against six Chinese firms that they suspect could supply chips to Huawei, which has been on a US trade restrictions list since 2019. [...] Qualcomm recently said that its business with Huawei is already limited and will soon shrink to nothing. It has been allowed to supply the Chinese company with chips that provide older 4G network connections. It's prohibited from selling ones that allow more advanced 5G access.

Computer models have found that recent heat waves in the north Pacific may be due to a large reduction in aerosols emitted by factories in China. The findings have been published in the Proceedings of the National Academy of Sciences. Phys.Org reports: In this new effort, the research team noted that the onset of the heat waves appeared to follow successful efforts by the Chinese government to reduce aerosol emissions from their country's factories. Beginning around 2010, factories and power generating plants in China began dramatically reducing emissions of aerosols such as sulfate, resulting in much cleaner air. Noting that aerosols can act like mirrors floating in the air, reflecting heat from the sun back into space, and also pointing out that earlier research efforts had suggested that massive reductions of aerosols in one place could lead to warming in other places -- they wondered if reductions of aerosols in China might be playing a role in the heat waves that began happening in the north Pacific.

To find out if that might be the case, the team began collecting data and then input it into 12 different computer climate models. They ran them under two conditions -- one where emissions from East Asia remained as they were over the past several decades and one where they dropped in the way they had in reality. They found that the models with no declines did not cause much change elsewhere, whereas those with aerosol drops showed heat waves occurring in the northeast parts of the Pacific Ocean.

The models also showed why -- as less heat was reflected back into space over China, warming of coastal regions in Asia began, resulting in the development of high-pressure systems. That in turn made low-pressure systems in the middle Pacific more intense. And that resulted in the Aleutian Low growing bigger and moving south which weakened the westerly winds that typically cool the sea surface. The result was hotter conditions.

Less than two weeks after President Biden signed a bill that will force TikTok's Chinese owner, ByteDance, to sell the popular social media app or face a ban in the United States, TikTok said it sued the federal government on Tuesday, arguing the law was unconstitutional. From a report: TikTok said that the law violated the First Amendment by effectively removing an app that millions of Americans use to share their views and communicate freely. It also argued that a divestiture was "simply not possible," especially within the law's 270-day timeline, pointing to difficulties such as Beijing's refusal to sell a key feature that powers TikTok in the United States.

"For the first time in history, Congress has enacted a law that subjects a single, named speech platform to a permanent, nationwide ban, and bars every American from participating in a unique online community with more than one billion people worldwide," the company said in the 67-page petition it provided, which initiates the lawsuit. "There is no question: The act will force a shutdown of TikTok by Jan. 19, 2025." TikTok is battling for its survival in the United States, with the fight set to play out primarily in courts over the next few months. While lawmakers who passed the bill have said the app is a national security threat because of its ties to China, the courts must now weigh those concerns against TikTok's argument that a sale or ban would violate the First Amendment free-speech rights of its users and hurt small businesses that owe their livelihood to the platform.

The Register provides a retrospective look at how Microsoft "absorbed the handset division of Nokia" ten years ago, only to kill the unit two years later and write it off as a tax loss. What went wrong? "It was a fatal combination of bad management, a market evolving in ways hidebound people didn't predict, and some really (with a few superb exceptions) terrible products," reports The Register. From the report: Like Nokia, Windows Mobile's popularity peaked in 2007, then started to drop away. The iPhone was the tech item of choice for fashionistas, Blackberry was seen as essential for serious business, and Android -- with Google as its new owner -- was gaining traction. Microsoft by that time had a new CEO in Steve Ballmer, who completely and famously failed to see the shifting sands in the mobile market. He dismissed the iPhone as a threat to what he thought was Windows Mobile's unassailable market position, and was roundly mocked for it. So the scene was set for a mobile standards war, and Steve Ballmer staked his professional pride on winning it. Microsoft recruited Nokia to help out. [...]

Under [Executive VP of Microsoft Stephen Elop's] leadership, a closer working relationship with Microsoft was a given -- but in 2013 Redmond announced it was going the whole hog and buying Nokia's handset business outright for $7.2 billion. The deal was done in April 2014, a decade ago from today. Microsoft also got a ten-year license on Nokia's patents and the option to renew in perpetuity. It also got Elop back, as executive vice president of the Microsoft Devices Group. That meant stepping down as CEO of Nokia, for which he trousered an 18.8 million bonus package -- a payoff the Finnish prime minister at the time called "outrageous." Nokia retained its networking business in Finland. It purchased Siemens' half of the Nokia Siemens Networks joint venture and renamed in Nokia Networks. The Nokia board rolled the dice again on hiring another non-Suomi manager, Rajeev Suri, and this time hit a double D20 in D&D terms.

When Ballmer stepped down from the helm at Microsoft in 2014 -- shortly before the Nokia deal completion -- he left a hot mess to deal with. His plan had been to develop the mobile operating system in conjunction with Windows 10, and Windows Mobile 10 was supposed to be a part of a unified code environment. While Windows 10 on the desktop wasn't a bad operating system, Windows Mobile 10 really was. The promised synergy just didn't happen -- it was power-hungry, clunky, and about as popular as a rattlesnake in a pinata. It was this mess that Satya Nadella faced when he took over the reins. Nadella was never very keen on the phone platform and spent more time in press conferences talking about cricket or the cloud than Microsoft's mobile ambitions. It was clear to all that this really wasn't working. Elop was laid off by Redmond a year later.

It was clear that Windows Mobile wasn't going to work. Android and iOS were drinking Microsoft's milkshake, and Redmond realized the game was up. Microsoft started shedding mobile jobs -- both in Finland and Redmond. While mobile was still publicly touted as the way forward for Microsoft with Ballmer gone, the impetus wasn't there and support for the mobile OS shriveled. In 2015 Microsoft declared it was writing off $7.6 billion on the Phone Hardware division as "goodwill and asset impairment charges" -- $400 million more than it had originally paid for the Finnish firm. Nokia bought European networking giant Alcatel-Lucent in a $16.7 billion deal in 2015. Around the same time, Suri announced a move into tablets, since it had a non-compete agreement with Microsoft on mobiles. Meanwhile a bunch of former Nokia execs who'd fled Elop and Microsoft had started a mobile biz of their own: HMD. It was Finnish, but outsourced production to Foxconn in China, and was planning to make cheapish Android devices. In 2016 Microsoft sold its mobile hardware arm to HMD for an undisclosed -- but probably not large -- sum. Nadella clearly wanted out of the whole business and the Finnish startup concentrated on selling good-enough Android smartphones to Nokia's traditional cheap markets.

Senior Department arms control official Paul Dean on Thursday urged China and Russia to declare that artificial intelligence would never make decisions on deploying nuclear weapons. Washington had made a "clear and strong commitment" that humans had total control over nuclear weapons, said Dean. Britain and France have made similar commitments. Reuters reports: "We would welcome a similar statement by China and the Russian Federation," said Dean, principal deputy assistant secretary in the Bureau of Arms Control, Deterrence and Stability. "We think it is an extremely important norm of responsible behaviour and we think it is something that would be very welcome in a P5 context," he said, referring to the five permanent members of the United Nations Security Council.

China launched an uncrewed lunar mission Friday that aims to bring back samples from the far side of the moon for the first time, in a potentially major step forward for the country's ambitious space program. From a report: The Chang'e-6 probe -- China's most complex robotic lunar mission to date -- blasted off on a Long March-5 rocket from the Wenchang Space Launch Center in south China's Hainan island, where space fans had gathered to watch the historic moment. The country's National Space Administration said the launch was a success. The launch marks the start of a mission that aims to be a key milestone in China's push to become a dominant space power with plans to land astronauts on the moon by 2030 and build a research base on its south pole.

It comes as a growing number of countries, including the United States, eye the strategic and scientific benefits of expanded lunar exploration in an increasingly competitive field. China's planned 53-day mission would see the Chang'e-6 lander touch down in a gaping crater on the moon's far side, which never faces Earth. China became the first and only country to land on the moon's far side during its 2019 Chang'e-4 mission. Any far-side samples retrieved by the Chang'e-6 lander could help scientists peer back into the evolution of the moon and the solar system itself -- and provide important data to advance China's lunar ambitions.