An anonymous reader quotes a report from Ars Technica: The fall of the Berlin Wall in November 1989 was a seminal moment in 20th century history, paving the way for German reunification. Many segments, both large and small, were preserved for posterity -- including portions covered in graffiti or murals. A team of Italian scientists used a combination of spectroscopic analysis and machine learning to study paint chips from wall fragments to learn more about the chemistry of the paints and pigments used, according to a new paper published in the Journal of the American Chemical Society. [...] Nondestructive techniques like Raman spectroscopy are often used to identify the molecular signatures of pigments, dyes, and other chemical compounds, but this usually requires bringing samples to the lab. Handheld Raman devices are used for cases where analysis must be done on-site, but they are far less precise than full-size laboratory equipment. So [Francesco Armetta of the University of Palermo and co-authors of the paper] decided to adopt a machine-learning approach to enhance the precision and sensitivity of spectral data collected by those handheld devices. The team collected 15 pictorial fragments of five different colors from Berlin Wall paintings. They used handheld Raman spectroscopy on the paint chips and compared that spectral data to a commercial library of pigment spectra, confirming those findings with X-ray fluorescence and optical fiber reflectance spectroscopy. Most of the fragments had two top layers that had been painted with a brush rather than spray paint; brushstrokes were clearly visible under a microscope in several cases. The underlying third layer, in contact with the masonry, was white and probably used to prepare the surface for painting. Calcium and titanium were the most abundant elements in all the samples. Chromium and lead were present in a green-colored sample, and the authors think this was mixed with another color to get that particular shade. There were also traces of copper in blue and green samples. Armetta et al. also created their own mock-up samples by mixing commercial German acrylic paints (commonly used since the 1800s) in different ratios to try to match colors and tints from the fragments -- crucial information for restoration. This is where their machine-learning algorithm (dubbed SAPNet) proved useful. They trained it on the Raman spectral data from the Berlin Wall samples and used it to determine the percentage of pigment. The model concluded that the Berlin Wall paint chips contained titanium white and as much as 75 percent pigment. "The identification of most of the components of the fragments was only possible through the comprehensive evaluation of the results provided by all the techniques [combined]," the authors concluded, further augmented by the development of SAPNet. "While SAPNet was specifically tailored for pigment mixture analysis, its robust framework demonstrates the transformative potential of deep learning methodologies for Raman spectral analysis across diverse scientific and industrial applications."

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An anonymous reader quotes a report from TechCrunch: The European Union is forging ahead with plans for a constellation of internet satellites to rival Elon Musk-owned Starlink, after signing a $11.1 billion deal to launch nearly 300 satellites into low- and medium-Earth orbits by 2030. The bloc wants the space tech to boost its digital sovereignty by providing secure comms to governments. First announced in 2022, Iris^2 (Infrastructure for Resilience, Interconnectivity and Security by Satellite) is a public-private partnership whose initial cost estimate (6 billion euros) leapt 76% through a fraught negotiation process. In the end, the program will be 61% funded from the public purse; an industry consortium called SpaceRise, selected in October, is making up the difference. This grouping includes French satellite giant Eutelsat, which merged with European rival OneWeb back in 2022.

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Arctic Wolf has acquired Cylance, BlackBerry's beleaguered cybersecurity business, for $160 million -- a significant discount from the $1.4 billion BlackBerry paid to acquire the startup in 2018. From a report: Under the terms of the deal, which is expected to close in BlackBerry's fiscal Q4, BlackBerry will sell its Cylance assets to Arctic Wolf for $160 million in cash. BlackBerry will get ~$80 million at closing and the rest of the tranche a year later, along with roughly 5.5 million common shares in Arctic Wolf.

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An anonymous reader shares a report: Google announced it's rolling out ChromeOS M131 to non-beta users, bringing with it a handy "Safety reset" feature that lets Chromebook users reset their laptops without totally wiping them. The update also introduced a new "Flash notifications" accessibility option to help those who might not otherwise easily hear or see them. Like Powerwash in ChromeOS, Safety reset will wipe the slate clean if you're experiencing computer virus-like behavior such as unusual pop-ups. But where Powerwash is a full factory reset, Safety reset preserves local data and apps, as well as things like bookmarks and saved passwords, according to a help document about the feature.

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Apple is preparing a series of major design and format changes to its lineup of iPhones and potentially other products, according to WSJ, a bid to revive growth after years of offering largely incremental upgrades. From the report: Starting next year, Apple plans to introduce an iPhone that will be thinner than the approximately 8-millimeter profile of current models, said people familiar with the company's plans. The model is intended to be cheaper than Pro models, with a simplified camera system to reduce costs. The company is also planning two foldable devices, the people said. A larger device, intended to serve as a laptop, would have a screen that unfolds to be nearly as large as some desktop monitors, at about 19 inches. A smaller model would unfold to a display size that would be larger than an iPhone 16 Pro Max, intended to serve as a foldable iPhone, the people said. Both foldable designs have been in development for years, but some key parts weren't ready. Major challenges included improving the hinge, a mechanism that allows the device to fold and unfold, and the display cover, a flexible material protecting the foldable screen. Current foldable phones on the market aren't thin, light or energy-efficient enough to meet Apple's standards, which is why Apple has been slower to enter this segment, said Jeff Pu, an analyst with Hong Kong-based brokerage Haitong International Securities.

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An anonymous reader shares a report: Softbank CEO Masayoshi Son will announce a $100 billion investment in the U.S. over the next four years during a Monday visit to President-elect Donald Trump's residence Mar-a-Lago in Palm Beach, Florida, sources familiar with the matter told CNBC's Sara Eisen. The billionaire investor and founder of the Japanese tech-investing firm will also promise in the joint announcement with Trump to create 100,000 jobs focused on artificial intelligence and related infrastructure, the sources said. The money will be deployed before the end of Trump's term. The funding could come from various sources controlled by Softbank, including the Vision Fund, capital projects or chipmaker Arm Holdings, where the firm is majority owner.

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One in five adults in developed nations demonstrate primary school-level literacy and numeracy skills, according to an OECD study of 160,000 people across 31 countries released December 10. The decennial Survey of Adult Skills reveals declining literacy rates over the past decade despite rising secondary education completion. Finland topped rankings across all tested areas -- numeracy, literacy, and problem-solving -- while Japan, Norway and the Netherlands performed above average. The United States showed declining scores, with Chile, Italy, Poland and Portugal reporting high proportions of below-average performers. The study found widening skill gaps between top and bottom performers, with declining scores concentrated among lower-performing adults.

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This month Bill Gates recommended four books about making sense of the world, including The Coming Wave, by Mustafa Suleyman. Gates calls it "the book I recommend more than any other on AI — to heads of state, business leaders, and anyone else who asks — because it offers something rare: a clear-eyed view of both the extraordinary opportunities and genuine risks ahead." After helping build DeepMind from a small startup into one of the most important AI companies of the past decade, [Suleyman] went on to found Inflection AI and now leads Microsoft's AI division. But what makes this book special isn't just Mustafa's firsthand experience — it's his deep understanding of scientific history and how technological revolutions unfold. He's a serious intellectual who can draw meaningful parallels across centuries of scientific advancement. Most of the coverage of The Coming Wave has focused on what it has to say about artificial intelligence — which makes sense, given that it's one of the most important books on AI ever written. And there is probably no one as qualified as Mustafa to write it... But what sets his book apart from others is Mustafa's insight that AI is only one part of an unprecedented convergence of scientific breakthroughs. Gene editing, DNA synthesis, and other advances in biotechnology are racing forward in parallel. As the title suggests, these changes are building like a wave far out at sea — invisible to many but gathering force. Each would be game-changing on its own; together, they're poised to reshape every aspect of society... [P]rogress is already accelerating as costs plummet and computing power grows. Then there are the incentives for profit and power that are driving development. Countries compete with countries, companies compete with companies, and individuals compete for glory and leadership. These forces make technological advancement essentially unstoppable — and they also make it harder to control... How do we limit the dangers of these technologies while harnessing their benefits? This is the question at the heart of The Coming Wave, because containment is foundational to everything else. Without it, the risks of AI and biotechnology become even more acute. By solving for it first, we create the stability and trust needed to tackle everything else... [Suleyman] lays out an agenda that's appropriately ambitious for the scale of the challenge — ranging from technical solutions (like building an emergency off switch for AI systems) to sweeping institutional changes, including new global treaties, modernized regulatory frameworks, and historic cooperation among governments, companies, and scientists... In an accompanying Christmas-themed video, Gates adds that "Of all the books on AI, that's the one I recommend the most." Gates also recommends The Anxious Generation by Jonathan Haidt, saying it "made me reflect on how much of my younger years — which were often spent running around outside without parental supervision, sometimes getting into trouble — helped shape who I am today. Haidt explains how the shift from play-based childhoods to phone-based childhoods is transforming how kids develop and process emotions." (In the video Gates describes it as "kind of a scary book, but very convincing. [Haidt] writes about the rise of mental illness, and anxiety in children. He, unlike some books, actually has some prescriptions, like kids not using phones until much later, parenting style differences. I think it's a super-important book.") Gates goes into the book's thesis in a longer blog post: that "we're actually facing two distinct crises: digital under-parenting (giving kids unlimited and unsupervised access to devices and social media) and real-world over-parenting (protecting kids from every possible harm in the real world). The result is young people who are suffering from addiction-like behaviors — and suffering, period — while struggling to handle challenges and setbacks that are part of everyday life." [Haidt] makes a strong case for better age verification on social media platforms and delaying smartphone access until kids are older. Literally and figuratively, he argues, we also need to rebuild the infrastructure of childhood itself — from creating more engaging playgrounds that encourage reasonable risk-taking, to establishing phone-free zones in schools, to helping young people rediscover the joy of in-person interaction. Gates also recommends Engineering in Plain Sight, by Grady Hillhouse, a book which he says "encourages curiosity." ("Hillhouse takes all of the mysterious structures we see every day, from cable boxes to transformers to cell phone towers, and explains what they are and how they work. It's the kind of read that will reward your curiosity and answer questions you didn't even know you had.") And finally, Gates recommends an autobiography by 81-year-old Pulitzer Prize-winning historian/biographer/former sports journalist Doris Kearns Goodwin, who assesses the impact of President Lyndon Johnson's policies in a surprising "personal history of the 1960s."

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