Understanding fluids requires mathematical tools that operate at different scalesKARL GAFF / SCIENCE PHOTO LIBRARYMathematicians have finally succeeded in unifying the laws of physics that govern the motions of particles at different scales. Their efforts resolve a question set by mathematician David Hilbert in 1900 as part of an ambitious programme for all mathematicians of the 20th century and could deepen our understanding of the complex behaviour of fluids in the atmosphere and oceans.This is a major result in my view. I thought it was completely beyond reach, says Benjamin Texier at the University of Lyon

An artists impression of a Starlink satellite in orbitMichal Bednarek/ShutterstockA fragment of an out-of-control SpaceX Starlink satellite smashed into a farm in Canada last year, New Scientist can reveal raising questions about the risks of de-orbiting space junk.Thatll punch a hole in whatever it lands on, including your head, says Samantha Lawler, an astronomer at the University of Regina in Canada.Last July, SpaceX launched a batch of its internet-providing Starlink satellites on a Falcon 9 rocket, but a malfunction with the rockets upper

2025-03-14T18:18:35Z Read in app Shopify has acquired another AI-focused shopping startup. Bennett Raglin/Getty Images This story is available exclusively to Business Insider subscribers. Become an Insider and start reading now.Have an account? Shopify has acquired Vantage Discovery, a startup building AI search for retailers.Vantage Discovery was founded by two former Pinterest engineering leaders.Shopify has been acquiring startups in an effort to bring on more AI talent.Shopify has acquired Vantage Discovery, a startup that builds AI-powered search functions for retailers.Cofounders Lance Riedel and Nigel Daley both previously worked in engineering at Pinterest. Riedel built out Pinterest Shopping, while Daley worked in engineering infrastructure.They started Vantage Discovery in early 2023 to bring a "Pinterest-like capability to any retailer" using generative AI, Daley said in an interview with Business Insider in February.Vantage Discovery uses LLMs to enhance retailers' search functions, allowing shoppers to see more personalized, relevant results when searching through a store's product catalog."In the past, machine learning and AI had been held by some of the much bigger companies," he said. "Now with Gen AI and technology like Vantage Discovery, we can bring that same power to any retailer, from the smallest mom-and-pop shop to massive enterprises."Riedel said in a LinkedIn post that Vantage Discovery would integrate its "revolutionary technology with Shopify's commerce platform." Daley confirmed the news in an email but declined to comment further on the deal to BI. Representatives for Shopify did not immediately return a request for comment from BI.Shopify has been on an acquisition spree. It acquihired six startups in 2024 with the goal of bringing on AI talent."These have been very tactical, thoughtful AI hires and we want to continually be thoughtful, proactive, and judicious on thinking about the cash," CFO Jeff Hoffmeister said during the company's earnings call in February.Have a tip? Contact this reporter via email at mstone@businessinsider.com or Signal at mlstone.04. Use a personal email address and a nonwork device; here's our guide to sharing information securely.

2025-03-14T18:11:07Z Read in app The full details of the as-yet-revealed cheaper model could revealed by this summer. Frederic J. Brown/AFP via Getty Images This story is available exclusively to Business Insider subscribers. Become an Insider and start reading now.Have an account? Tesla has said it will unveil a new more affordable model by mid-2025.The car, reportedly inspired by the Model Y, may be mass-produced in China in 2026.Elon Musk emphasized self-driving as essential for a cheaper Tesla model, dismissing alternatives.Tesla's plans for its upcoming more affordable electric vehicle seem to be getting clearer.The automaker has promised that the model will be unveiled in the first half of 2025, which means it could debut by the end of June if Tesla meets the deadline.The other morsel of company info so far has come from CEO Elon Musk. On January's earnings call, he said it would be "pointless" to make a cheaper model without self-driving abilities, in response to a question about a "$25,000 non-robotaxi regular car model.""It would be silly. It would be completely at odds with what we believe," Musk said.Outside of its deadline and Musk's comments, Tesla has kept the details of this project hush-hush. However, 36Kr, a Chinese media outlet, reported on March 13 that the car will take after the Model Y, which currently starts at over $50,000 on Tesla's official website. The Tesla Model Y is one of the automaker's most popular models. Tesla Hong Kong The Model Y is a popular option for Tesla buyers, and a newer version of the vehicle with a longer range and Cybertruck-style light bar was released in January.Meanwhile, Reutersreportedon March 14 that the potential lower-cost vehicle will be produced in Shanghai, the US, and Europe, with mass production in China expected in 2026.The slate of anticipated launches and announcements in 2025 follows a year of losses for Tesla. The company missed estimates in Q4, and sales declined 13% in Europe in 2024.Tesla analysts have previously told BI that an affordable model launch could be what it needs to regain its footing as Chinese rivals emerge with their own low-cost EVs. As of Friday, Tesla's cheapest existing vehicle is the Model 3, which starts at over $30,000.

While fans have been holding out hope for a remaster of Kratos' classic God of War adventures, Sony apparently has other plans with freebies for fans but no classic returnTech16:26, 14 Mar 2025Updated 16:31, 14 Mar 2025That's a big (cute) serpent(Image: Fangamer/Sony)The PS2 was home to some fantastic games, but Kratos' adventures throughout Ancient Greece in God of War 1 and 2 are undoubtedly some of the most fondly remembered.The killing machine has since turned his attention to being a good Dad in the series 2018 reboot and 2022's God of War Ragnarok, but rumours have persisted that a remaster of the classic titles would come at some point.Article continues belowSadly, we've not heard anything in some time, and the series' 20th anniversary feels like an ideal time to reveal a revisit to Ancient Greece but Sony has other ideas.Ragnarok was the last God of War game(Image: Sony )While fans had hoped the first trilogy of God of War games would get a new lick of paint, Sony has revealed its plans for the series in a new blog post and there's no remaster among them, at least not yet.To celebrate two decades of Kratos being the angriest demigod in history, the Santa Monica Studio is handing out Dark Odyssey weapons and armour, inspired by God of War II's God Mode skin.Content cannot be displayed without consentThey'll be free for all players on console and PC on Thursday March 20, with the anniversary two days later, while Atreus and Freya will get fresh looks, too.Before that, players can grab a bunch of free social media assets, while free PSN avatars and God of War items in the Steam Points Shop will also drop on March 20.Fans in LA can visit Gallery Nucleus for a God of War art exhibition, while preorders start on Monday, March 17 for new merch."Featuring interviews from key developers, the God of War: 20th Anniversary Retrospective set brings together stories, insights, and art capturing an intimate, behind-the-scenes look into how the games came to be," the blog post reads.God of War is one of PlayStation's biggest franchises(Image: SONY )Elsehwere there are 67 inches of World Serpent available with a giant plushy Jrmungandr, clothing, and vinyls. Both Norse mythology games are discounted as part of the Steam Spring Sale.Article continues belowThe series, which began on PS2 in 2005, stars Kratos, as he carves his way through the Greek pantheon in violent fashion. The original trilogy, and the unnumbered Ascension, as well as two PSP games, have all been ported to PS3 and Vita, while God of War 3 made its way to PS4.For the latest breaking news and stories from across the globe from the Daily Star, sign up for our newsletters.

Warhammer 40,000: Space Marine 2 was fantastic, so it's perhaps not all that surprising that Focus Entertainment and Saber Interactive are working on a sequelTech15:59, 14 Mar 2025Warhammer 40,000: Space Marine 2 is a fantastic shooter(Image: Saber Interactive)2024 was a great year for games, but one that might have flown under your radar is Warhammer 40,000: Space Marine 2. If you didn't play the original, or had no skin in the Warhammer 40k universe, you could perhaps be forgiven for skipping it.Those who did give it a go, however, were rewarded with some of the most chaotic battles in any game of 2024, as players cut swathes through Tyranid swarms in gory fashion.Article continues belowIt's an easy recommendation in the Steam Spring Sale, which among a whole bunch of discounts has the game reduced on PC, and while the developers have committed to further updates it appears there's even more to come.Will it be Ultramarines again?(Image: Saber Interactive)While publishers often keep things close to their proverbial chests in gaming, Focus Entertainment and developer Saber Interactive have released a joint statement confirming a sequel is coming."We have been honored by the incredible response from fans following the launch of Warhammer 40,000: Space Marine 2. We will continue to support the game with exciting content and regular updates in the coming years. Today, we are thrilled to announce that the adventure will continue with Space Marine 3," said John Bert, Deputy CEO of Focus Entertainment Publishing in a press release.Expect even bigger battles, apparently(Image: Saber Interactive)"Players can look forward to an immersive campaign, a multiplayer mode, and innovations that will redefine the standards of third-person action games. Developed in close collaboration with Games Workshop, Warhammer 40,000: Space Marine 3 will take the genre to new heights by introducing large-scale battles that are even more spectacular," Bert added.The promise of larger battles is particularly exciting given Space Marine 2 often features hundred of enemies on screen swarming over each other to sink their teeth into players."Space Marine 2 has proven to be a transformative game for Saber. It is the culmination of everything we have learned about game development in our 25 years in the business," Matthew Karch, CEO of Saber Interactive revealed."We are now starting to develop Space Marine 3, a game that carries with it tremendous expectations from our rapidly expanding fanbase. "Warhammer 40,000: Space Marine 2 was a breakout success(Image: Saber Interactive)"While we will continue to support and grow the Space Marine 2 universe over the coming years, we will take all our learnings and apply them to an even bigger and more spectacular game for the third instalment. We view this as an opportunity to create a true love letter to the Warhammer 40.000 universe."Given the first game launched in 2011 (albeit from a different developer), here's hoping it doesn't take quite as long to get a sequel.Article continues belowFor more on PC gaming, be sure to check out the latest on how Assassin's Creed: Shadows will be Steam Deck Verified after all, as well as what it's like moving from console to PC.For the latest breaking news and stories from across the globe from the Daily Star, sign up for our newsletters.

Starfield looks PS5 bound (Bethesda)Microsoft appears to have outed the next Xbox game to appear on PS5, as the PlayStation logo appears on the Starfield website.As more and more Xbox games are released on other platforms, were now approaching the point where practically every Xbox exclusive feels destined for the PlayStation 5.Weve already seen the likes of Hi-Fi Rush, Sea Of Thieves, Pentiment, and Grounded on the console, with some on the Nintendo Switch too. In the coming months, were set to see Forza Horizon 5 and Indiana Jones And The Great Circle on Sonys console as well.The next obvious contender is Starfield, which launched on Xbox Series X/S and PC in 2023 and received the Shattered Space expansion last year. There have already been rumours of it going multiformat, but now a website update appears to suggest an announcement is imminent.As spotted by users on ResetEra, a listing posted on the official Bethesda website for Starfield Creations has a PlayStation logo next to the Xbox and PC icons.The listing, which has since been taken down, is for some work in progress ship decals, but this is the first time a PlayStation logo has been attached to a mod on the website, suggesting PlayStation 5 functionality is coming sooner than expected. The listing has since been removed (Bethesda/Metro)Some have already speculated the announcement of a PlayStation 5 version could coincide with details around the next expansion. Bethesdas Todd Howard previously promised therell be a new expansion for Starfield this year, and while it hasnt been officially announced, leaks suggest it will be called Starborn.More TrendingA recent tweet from the Starfields X account teased that there are a lot of exciting things planned for the game this year which would be shared when the time is right.The big question is when it could be announced. Microsoft randomly confirmed that Forza Horizon 5 is coming to PlayStation 5 in a news post, so this might done in the same way, but with a release date for Indiana Jones And The Great Circle yet to be announced, and reports of an Oblivion remake, this could be all tied to some upcoming event.Beyond Starfield, there have also been rumours of Halo and Gears Of War coming to PlayStation 5, while the former is also touted for the Switch 2. In fact, itd be surprising if multiple Xbox games werent part of the keenly awaited Nintendo Direct on April 2. The PlayStation logo in the wild of the Starfield website (Bethesda/Metro)Emailgamecentral@metro.co.uk, leave a comment below,follow us on Twitter, andsign-up to our newsletter.To submit Inbox letters and Readers Features more easily, without the need to send an email, just use ourSubmit Stuff page here.For more stories like this,check our Gaming page.GameCentralSign up for exclusive analysis, latest releases, and bonus community content.This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Your information will be used in line with our Privacy Policy

Tooth-brushing reigns supreme. But fluoride in tap water is a good safety net

By Matt Novak Published March 14, 2025 | Comments (0) | A screenshot from a concept video showing off the Tesla Cybercab, played on Oct. 10, 2024 in Burbank, California. Screenshot: Tesla John Krafcik, the former CEO of the robotaxi company Waymo from 2015-2021, knows a thing or two about the driverless vehicle industry. And when he says that Tesla CEO Elon Musk might use some extremely shady tactics to fake the launch of his own robotaxi service this summer in Austin, Texas, people stand up and listen. Thats exactly whats happening in a new interview with Krafcik, which was published in the German magazine Manager and has trickled down through English-language blogs today. The interview has gotten attention in places like Electrek and Autopian, which explain how Musks stated goals for the Cybercab robotaxi dont really match with the reality of making a safe business. From Autopians English-language translation of Krafciks thoughts: If a company were serious about building a safe robotaxi business, the robotaxi wouldnt look anything like this prototype. A serious robotaxi would demonstrate the primacy of safety; the manufacturer would place sensors in optimal positionson the roof, as well as on the sides and corners of the vehicle. These sensors would also have cleaning and drying functionswindshield wipers, compressed air nozzles, and so on. A serious robotaxi also wouldnt have a low-slung coupe body design. This design makes it difficult for people to easily get in and out; not everyone will be able to use these robotaxi vehicles comfortably. Some of these things were pointed out the time, when Musk held a glitzy unveiling at Warner Bros. movie studios in Burbank, California, back in October. If youre going to release a robotaxi service, why make the vehicles so small, with just two seats? And how is this design safe in any way? But the line from Krafcik thats getting all the attention right now calls into question what kind of tricks Musk might try to pull. There are many ways to fake a robotaxi service, Krafcik is quoted as saying.How could someone question Musks integrity when it comes to what he may unleash in Texas this summer? Well, the billionaire oligarch has stretched the truth before, including at the big event where Teslas Cybercab was previewed. You may recall that Musks event included many of his Optimus robots, something that he keeps suggesting are acting autonomously. The problem is that the robots at the event were actually being remotely controlled for the most part. Musk has a long history of blurring the line between putting on a show and actually delivering a real product. Remember back in January 2024 when Musk posted a video of Optimus that pretended like his robots could fold a shirt? It was quite a development in a really short period of time. Except that it was fake. As you can see in the GIF below, there was someone just off-screen actually teleoperating the robot.A video released by Elon Musk in January 2024, with a red arrow annotation showing the teleoperator of the robot GIF: Tesla / Gizmodo And it seems many people have even memory-holed Musks first robot demonstration in 2021 when he just brought up a person dancing in a skin-tight suit. The billionaires promises are often way ahead of what he can actually deliver. Who knows what Musk will produce in June? As other sites like Autopian point out, Musk might just miss the promised deadline entirely. That wouldnt be a huge surprise, especially since hes incredibly busy right now dismantling the federal government. But well have to wait and see what the wealthiest man in the world delivers. As Electrek explains:I do share Krafciks concerns about Tesla faking its robotaxi launch although faking might not be exactly the correct term. It simply nowhere near what Musk has been promising Tesla customers for years, which is that their vehicles bought since 2016 would be self-driving without driver supervision. There are robotaxi companies like Waymo that are currently operating, so its not like this is an impossible problem to solve. The question is whether Musk, specifically, can deliver on what hes promised. And guys like Krafcik seem to be skeptical. So well have to see.Daily NewsletterYou May Also Like By Matthew Gault Published March 14, 2025 By Lucas Ropek Published March 13, 2025 By Matt Novak Published March 13, 2025 By Lucas Ropek Published March 13, 2025 By AJ Dellinger Published March 12, 2025 Eli Hager, ProPublica Published March 12, 2025

By Florence Ion Published March 14, 2025 | Comments (0) | Soon, RCS messages will be fully encrypted between Android and iOS devices. Florence Ion / Gizmodo Its been less than a year since iPhones were granted the ability to send messages to Green Bubbles unfettered, and only now is proper end-to-end encryption making an appearance. Better late than never. The GSM Association announced new specifications for RCS, requiring it to be end-to-end encrypted (E2EE) based on a protocol called the Messaging Layer Security (MLS). The organization laid out the plan in a press release, citing the need to provide users with the highest level of privacy and security. The new specifications will use RCS Universal Profile 3.0, a cross-platform encryption protocol that will make it easier for iPhones and Android devices to identify each other. The profile allows for richer deep linking, better audio codec for voice messaging between parties, and ease of unsubscribing from a subscription text thread. The protocol will continue to support the rest of the high-resolution messaging capabilities introduced in the initial rollout of the RCS protocol, including tap-backs, read receipts, typing indicators, group messaging, and the ability to send photos without dialing down the quality. On Apples end, the company confirmed that it would support end-to-end encrypted RCS messaging and extend it to iOS, iPadOS, macOS, and watchOS in future software updates. End-to-end encryption is a powerful privacy and security technology that iMessage has supported since the beginning, and now we are pleased to have helped lead a cross-industry effort to bring end-to-end encryption to the RCS Universal Profile published by the GSMA, Apple spokesperson Shane Bauer told The Verge. As for Googles side of things, Android users already have E2EE between them by default for RCS texts. What does all this mean? Messages you send to your Android brothers and sisters wont hit Apples servers before theyre delivered. Theyll float on to where theyre supposed to go, encrypted in the tube. But remember to turn on Advanced Data Protection for your iCloud backups if you dont want Apple peeking in on your conversations. Not that it wouldmaybe if you were subpoenaed for some reasonbut were mainly speaking theoretically here. This option ensures all data thats backed up to iCloud is encrypted.Daily NewsletterYou May Also Like By Florence Ion Published March 14, 2025 By Florence Ion Published March 13, 2025 By Kyle Barr Published March 11, 2025 By Kyle Barr Published March 11, 2025 By Sherri L Smith Published March 11, 2025 By Florence Ion Published March 10, 2025