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Ancient Slashdot reader Epeeist shares a report from The Guardian: The newest version of the maglev train is capable of traveling at 600km/h (about 370mph). However, the train's engineers have wrestled with the problem of the shock waves which occur as the train exits the mouth of a tunnel. When a high-speed train enters an enclosed space such as a tunnel, air in front is compressed, like in a piston. The resulting fluctuations in air pressure coalesce at the tunnel mouth, generating low-frequency shock waves. These are colloquially known as a "tunnel boom" -- a related, albeit different phenomenon to the "sonic boom" heard as aircraft pass the speed of sound. Tunnel booms pose serious challenges to operational safety, as the shock waves can disturb humans and animals nearby, as well as causing structural damage. Now, however, researchers have discovered that placing innovative soundproofing buffers at tunnel mouths can reduce shock waves by up to 96%. This promises improvements in operational safety, noise pollution and passenger comfort, as well as safeguarding animals in the vicinity of future lines. [...] The porous structure of the new 100-meter long buffers, combined with porous coatings on the tunnel body, allow the trapped air to escape before the train reaches the tunnel mouth, suppressing the boom in the same way as a silencer fitted to a firearm.

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An anonymous reader quotes a report from 404 Media: Some of the first reviews ever written for the original Legend of Zelda and Super Mario Bros. have been digitized and published by the Video Game History Foundation. The reviews appeared in Computer Entertainer, an early video game magazine that ran from 1982 to 1990. The archivists at the Foundation tracked down the magazine's entire run and have published it all online under a Creative Commons license.

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Duolingo's decision to go "AI-first" sparked backlash from users, but the company's second quarter earnings result tell a different story. Quarterly revenue exceeded expectations, stock surged nearly 30%, and daily active users grew 40% year-over-year. TechCrunch reports: Now the company anticipates making over $1 billion in revenue this year, and daily active users have grown 40% year-over-year. The growth is significant but falls in the lower range of the company's estimates of growing between 40% and 45%, which an investor brought up to [CEO Luis von Ahn] on Wednesday's quarterly earnings call. "The reason we came [in] towards the lower end was because I said some stuff about AI, and I didn't give enough context. Because of that, we got some backlash on social media," von Ahn said. "The most important thing is we wanted to make the sentiment on our social media positive. We stopped posting edgy posts and started posting things that would get our sentiment more positive. That has worked."

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Despite dwindling global market share, retreat from key regions like Europe, and halting in-house production, Sony insists its Xperia smartphone line remains "very important" to its business. 9to5Google reports: During Sony's latest financial results presentation this week, Sony CFO Lin Tao addressed the state of its Xperia smartphone brand, saying that Xperia is part of "a very important business for us" as reported by CNET Japan (translated). Tao said that "communication technology is a very important technology that Sony has cultivated for a long time. We also want to continue to value our smartphone business." Though adding that "communication technology is used in areas other than smartphones."

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Amazon Web Services has struck a deal with the U.S. government to provide up to $1 billion in cloud service discounts through 2028. CNBC reports: The agreement is expected to speed up migration to the cloud, as well as adoption of artificial intelligence tools, the General Services Administration said. "AWS's partnership with GSA demonstrates a shared public-private commitment to enhancing America's AI leadership," the agency said in a release. Amazon's cloud boss, Matt Garman, hailed the agreement as a "significant milestone in the large-scale digital transformation of government services." The discounts aggregated across federal agencies include credits to use AWS' cloud infrastructure, modernization programs and training services, as well as incentives for "direct partnership." Further reading: OpenAI Offers ChatGPT To US Federal Agencies for $1 a Year

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An anonymous reader quotes a report from Wired: Two years ago, researchers in the Netherlands discovered an intentional backdoor in an encryption algorithm baked into radios used by critical infrastructure -- as well as police, intelligence agencies, and military forces around the world -- that made any communication secured with the algorithm vulnerable to eavesdropping. When the researchers publicly disclosed the issue in 2023, the European Telecommunications Standards Institute (ETSI), which developed the algorithm, advised anyone using it for sensitive communication to deploy an end-to-end encryption solution on top of the flawed algorithm to bolster the security of their communications. But now the same researchers have found that at least one implementation of the end-to-end encryption solution endorsed by ETSI has a similar issue that makes it equally vulnerable to eavesdropping. The encryption algorithm used for the device they examined starts with a 128-bit key, but this gets compressed to 56 bits before it encrypts traffic, making it easier to crack. It's not clear who is using this implementation of the end-to-end encryption algorithm, nor if anyone using devices with the end-to-end encryption is aware of the security vulnerability in them. Wired notes that the end-to-end encryption the researchers examined is most commonly used by law enforcement and national security teams. "But ETSI's endorsement of the algorithm two years ago to mitigate flaws found in its lower-level encryption algorithm suggests it may be used more widely now than at the time."

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Warner Bros. Discovery is preparing to crack down on HBO Max password sharing by the end of 2025, with "aggressive" enforcement and messaging starting next month. Deadline reports: JB Perrette, head of streaming and gaming at Warner Bros. Discovery said on the company's second-quarter earnings call that messaging to consumers is about to get more "aggressive." The media company looking to close the loopholes by the end of 2025, with the impact starting to appear in its financials by 2026. Several months of testing has enabled WBD to determine "who's a legitimate user who may not be a legitimate user," Perrette said. Once that is determined, he continued, the next step is to "turn on the more aggressive language around what needs to happen" in order to and make sure that "we are putting the net in the right place, so to speak." Asked about what "inning" the process is in, to use the baseball cliche, Perrette said only the first. By the fourth quarter, he said, the process will be happening "in a much more aggressive fashion." "The message language right now has been a fairly soft, cancel-able message," he said. It will "start to get more fixed and such that people have to take action as opposed to right now, sort of having to be a voluntary process." Once those directives are established, he said, "the real benefit will start probably in the fourth quarter and then kick in in 2026."

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An anonymous reader quotes a report from ZDNet: In an interview, Lansweeper, an IT asset discovery and inventory company, revealed to ZDNET that, in its analysis of over 15 million identified consumer desktop operating systems, it found that Linux desktops currently account for just over 6% of PC market share. This news comes after several other studies have shown the Linux desktop is right around the 6% mark. Indeed, according to the US Federal Government Website and App Analytics count, the Linux desktop market share over the last 90 days has reached 6.3%, a new high. In July, according to StatCounter, the Linux desktop also set a record high by its metrics with 5.24%.

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President Trump is set to sign an executive order opening up 401(k) retirements plans to alternative assets, like private equity, real estate, and cryptocurrency. The move has the potential to unlock trillions in new investment for asset managers outside of stocks, bonds, and cash, "though critics say it also could bring too much risk into retirement investments," reports Reuters. From the report: "The order directs the Securities and Exchange Commission to facilitate access to alternative assets for participant-directed defined-contribution retirement savings plans by revising applicable regulations and guidance," the White House official said on condition of anonymity. The order directs the Labor Secretary to consult with her counterparts at the Treasury Department, the SEC, and other federal "regulators to determine whether parallel regulatory changes should be made at those agencies," the official said. [...] The new investment options carry lower disclosure requirements and are generally less easy to sell quickly for cash than the publicly traded stocks and bonds that most retirement funds rely on. Investing in them also tends to carry higher fees. In defined contribution plans, employees make contributions to their own retirement account, frequently with a matching contribution from their employer. The invested funds belong to the employee, but unlike a defined benefit pension plan, there is no guaranteed regular payout upon retirement. Many private equity firms are hungry for the new source of cash that retail investors could offer after three years in which high interest rates shook their time-honored model of buying companies and selling them at a profit. Whatever results may come from Trump's order, it likely will not happen overnight, private equity executives say. Plaintiffs' lawyers are already preparing for lawsuits that could be filed by investors who do not understand the complexity of the new forms of investments.

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Microsoft's $30 Extended Security Updates license for Windows 10 will cover up to 10 devices under a single Microsoft Account, the company confirmed in updated support documentation. The ESU program, which provides security updates through October 13, 2026, requires a Microsoft Account for all three enrollment options: the $30 one-time purchase, redemption of 1,000 Microsoft Reward points, or free enrollment for users who sync their PC settings to OneDrive. Windows 10's support ends October 14, 2025.

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Google has quietly admitted defeat in selling advertising for its smart TV platform, returning ad inventory to publishers and accepting a revenue share instead of controlling ad spots directly, according to The Verge. The policy reversal comes as Google spends hundreds of millions of dollars annually on Google TV without breaking even, while Amazon outspends the company on retail incentives that have already pushed Google TV sets out of Costco stores in favor of Fire TV models. Amazon pays up to $50 per activated television to retailers and manufacturers, The Verge reported. Google TV has grown to 270 million monthly active devices worldwide since unifying Android TV and Chromecast under a single brand in 2020, but many devices operate in overseas markets that generate little revenue or run customized versions controlled by pay-TV operators. YouTube's success in the living room -- generating $9.8 billion in quarterly ad revenue and accounting for 12.5% of all US television viewing -- has reduced internal support for Google TV, with sales teams prioritizing the video platform and some YouTube executives arguing the smart TV budget should be redirected, the report adds.

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OpenAI released GPT-5 on Thursday, ending a two-year development cycle that CEO Sam Altman called a "significant leap in intelligence" over previous models. The updated AI system achieved state-of-the-art performance across multiple benchmarks, scoring 94.6% on AIME 2025 mathematics problems and 74.9% on SWE-bench Verified coding tasks. The model operates as a unified system combining a standard response mode with deeper reasoning capabilities that activate automatically based on query complexity. OpenAI reduced hallucinations by approximately 45% compared to GPT-4o and 80% compared to its previous reasoning model when using extended thinking modes. GPT-5 becomes available immediately to all ChatGPT users at no cost, with paid subscribers receiving higher usage limits and access to GPT-5 pro for more complex reasoning tasks.

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An anonymous reader shares a report: OpenAI is paying bonuses to around 1,000 employees on its technical research and engineering teams, or about a third of the company, ranging from the low hundreds of thousands to millions, as the company gears up to release its latest flagship GPT-5 model and faces an ever-rising battle for AI talent, according to a person with knowledge of the bonuses.

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schwit1 shares a report: China's biggest solar firms shed nearly one-third of their workforces last year, company filings show, as one of the industries hand-picked by Beijing to drive economic growth grapples with falling prices and steep losses. The job cuts illustrate the pain from the vicious price wars being fought across Chinese industries, including solar and electric vehicles, as they grapple with overcapacity and tepid demand. The world produces twice as many solar panels each year as it uses, with most of them manufactured in China. Longi Green Energy, Trina Solar, Jinko Solar, JA Solar, and Tongwei, collectively shed some 87,000 staff, or 31% of their workforces on average last year, according to a Reuters review of employment figures in public filings.

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Digital Foundry, the gaming hardware analysis publication known for its technical console breakdowns, has separated from IGN ownership as of today, with founder Richard Leadbetter purchasing the outlet and its complete archives. Leadbetter, who retained 50% ownership since selling half to Eurogamer in 2015, acquired an additional 25 percent from IGN while investor Rupert Loman, Eurogamer's original co-founder, purchased the remaining quarter. The five-person team will operate independently, maintaining its YouTube channel with 1.5 million subscribers and Patreon support generating approximately $200,000 annually. The publication plans to develop a full website for its written content and expand coverage while keeping most content free.

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President Trump and Apple are expected to announce a new $100 billion commitment by Apple to boost manufacturing in the U.S. CBS News: The new investment would increase Apple's commitment to U.S. manufacturing to $600 billion over the next four years, according to a White House official. And it's expected to include a new "American Manufacturing Program" focused on bringing more of Apple's supply chain and advanced manufacturing to the U.S. [...] In May, the president threatened to impose a 25% tariff on iPhones made outside the U.S., writing on Truth Social that he told Cook that he expects that iPhones that will be sold in the U.S. "will be manufactured and built in the United States, not India, or anyplace else."

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Nvidia's chief security officer has published a blog post insisting that its GPUs "do not and should not have kill switches and backdoors." From a report: It comes amid pressure from both sides of the Pacific, with some US lawmakers pushing Nvidia to grant the government backdoors to AI chips, while Chinese officials have alleged that they already exist. David Reber Jr.'s post seems pointedly directed at US lawmakers. In May a bipartisan group introduced the Chip Security Act, a bill that would require Nvidia and other manufacturers to include tracking technology to identify when chips are illegally transported internationally, and leaves the door open for further security measures including remote kill switches. While Nvidia is expecting to be granted permits to once again sell certain AI chips in China, its most powerful hardware is still under strict US export controls there and elsewhere.

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An anonymous reader quotes a report from the New York Times: China's automakers have teamed up with software companies togo global with their driverless cars, which are poised to claim a big share of a growing market as Western manufacturers are still preparing to compete. The industry in China is expanding despite tariffs imposed last year by the European Union on electric cars, and despite some worries in Europe about the security implications of relying on Chinese suppliers. Baidu, one of China's biggest software companies, said on Monday that it would supply Lyft, an American ride-hailing service, with self-driving cars assembled by Jiangling Motors of China (source paywalled; alternative source). Lyft is expected to begin operating them next year in Germany and Britain, subject to regulatory approval, the companies said. The announcement comes three months after Uber and Momenta, a Chinese autonomous driving company, announced their own plans to begin offering self-driving cars in an unspecified European city early next year. Momenta will soon provide assisted driving technology to the Chinese company IM Motors for its cars sold in Britain. While Momenta has not specified the model that Uber will be using, it has already signaled it will choose a Chinese model. In China, "the pace of development and the pressure to deliver at scale push companies to improve quickly," said Gerhard Steiger, the chairman of Momenta Europe. China's state-controlled banking system has been lending money at low interest rates to the country's electric car industry in a bid for global leadership. [...] Expanding robotaxi services to new cities, not to mention new countries, is not easy. While the individual cars do not have drivers, they typically require one controller for every several cars to handle difficulties and answer questions from users. And the cars often need to be specially programmed for traffic conditions unique to each city. Lyft and Baidu nonetheless said that they had plans for "the fleet scaling to thousands of vehicles across Europe in the following years."

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A San Francisco jury ruled that Meta violated the California Invasion of Privacy Act by collecting sensitive data from users of the Flo period-tracking app without consent. "The plaintiff's lawyers who sued Meta are calling this a 'landmark' victory -- the tech company contends that the jury got it all wrong," reports SFGATE. From the report: The case goes back to 2021, when eight women sued Flo and a group of other tech companies, including Google and Facebook, now known as Meta. The stakes were extremely personal. Flo asked users about their sex lives, mental health and diets, and guided them through menstruation and pregnancy. Then, the women alleged, Flo shared pieces of that data with other companies. The claims were largely based on a 2019 Wall Street Journal story and a 2021 Federal Trade Commission investigation. Google, Flo and the analytics company Flurry, which was also part of the lawsuit, reached settlements with the plaintiffs, as is common in class action lawsuits about tech privacy. But Meta stuck it out through the entire trial and lost. The case against Meta focused on its Facebook software development kit, which Flo added to its app and which is generally used for analytics and advertising services. The women alleged that between June 2016 and February 2019, Flo sent Facebook, through that kit, various records of "Custom App Events" -- such as a user clicking a particular button in the "wanting to get pregnant" section of the app. Their complaint also pointed to Facebook's terms for its business tools, which said the company used so-called "event data" to personalize ads and content. In a 2022 filing (PDF), the tech giant admitted that Flo used Facebook's kit during this period and that the app sent data connected to "App Events." But Meta denied receiving intimate information about users' health. Nonetheless, the jury ruled (PDF) against Meta. Along with the eavesdropping decision, the group determined that Flo's users had a reasonable expectation they weren't being overheard or recorded, as well as ruling that Meta didn't have consent to eavesdrop or record. The unanimous verdict was that the massive company violated the California Invasion of Privacy Act. The jury's ruling could impact over 3.7 million U.S. users who registered between November 2016 and February 2019, with updates to be shared via email and a case website. The exact compensation from the trial or potential settlements remains uncertain.

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The Trump administration has reportedly directed NASA to draw up plans to shut down its Orbiting Carbon Observatory satellite missions, which provide vital climate and agricultural data for scientists, oil and gas companies and farmers who need detailed information about carbon dioxide and crop health. As NPR reports, the satellites are "the only two federal satellite missions that were designed and built specifically to monitor planet-warming greenhouse gases." From the report: It is unclear why the Trump administration seeks to end the missions. The equipment in space is state of the art and is expected to function for many more years, according to scientists who worked on the missions. An official review by NASA in 2023 found that "the data are of exceptionally high quality" and recommended continuing the mission for at least three years. Both missions, known as the Orbiting Carbon Observatories, measure carbon dioxide and plant growth around the globe. They use identical measurement devices, but one device is attached to a stand-alone satellite while the other is attached to the International Space Station. The standalone satellite would burn up in the atmosphere if NASA pursued plans to terminate the mission. NASA employees who work on the two missions are making what the agency calls Phase F plans for both carbon-monitoring missions, according to David Crisp, a longtime NASA scientist who designed the instruments and managed the missions until he retired in 2022. Phase F plans lay out options for terminating NASA missions. The OCO missions would lose funding under the Trump Administration's budget proposal for Fiscal Year 2026, which begins Oct. 1 but has yet to pass. "Presidential budget proposals are wish lists that often bear little resemblance to final congressional budgets," notes NPR. "The Orbiting Carbon Observatory missions have already received funding from Congress through the end of the 2025 fiscal year, which ends Sept. 30." "Draft budgets that Congress is currently considering for next year keep NASA funding basically flat. But it's not clear whether these specific missions will receive funding again, or if Congress will pass a budget before current funding expires on Sept. 30."

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