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Toothpaste made with keratin may protect and repair damaged teeth: study

news.ycombinator.com King'S College London 2025-12-20 23:13:12

The King’s College London team of scientists discovered that keratin produces a protective coating that mimics the structure and function of natural enamel when it comes into contact with minerals in saliva. In a new study published today, scientists discovered that keratin, a protein found in hair, skin and wool, can repair tooth enamel and stop early stages of decay. Unlike bones and hair, enamel does not regenerate, once it is lost, it’s gone forever. Acidic foods and drinks, poor oral hyg

Topics: discovered enamel keratin scientists tooth

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Tversky Neural Networks

news.ycombinator.com Grigory Sapunov 2025-12-21 04:59:51

Authors: Moussa Koulako Bala Doumbouya, Dan Jurafsky, Christopher D. Manning Paper: https://arxiv.org/abs/2506.11035 Once a year, some interesting architecture inevitably appears where they change some fundamental building block. This happened with KAN last year, where they changed the parameterization of the neuron activation function (though it's unclear what the outcome is after a year — many follow-up works seem to have appeared, but KANs haven't displaced anyone anywhere yet). The same is

Topics: features layer object similarity tversky

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The Raft Consensus Algorithm (2015)

news.ycombinator.com Unknown 2025-12-17 05:09:34

What is Raft? Raft is a consensus algorithm that is designed to be easy to understand. It's equivalent to Paxos in fault-tolerance and performance. The difference is that it's decomposed into relatively independent subproblems, and it cleanly addresses all major pieces needed for practical systems. We hope Raft will make consensus available to a wider audience, and that this wider audience will be able to develop a variety of higher quality consensus-based systems than are available today. Hol

Topics: consensus fault machine servers state

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A brilliant puzzle-platformer, Enter the Gungeon on mobile and other new indie games worth checking out

engadget.com Unknown 2025-12-21 04:00:42

Welcome to our latest recap of what's going on in the indie game space. Quite a few intriguing games dropped this week and some high-profile ones have been ported to more platforms. Before we get to those, though, I'd like to tell you about one of my favorite games of the year so far. I struggle to fully engage with many RPGs. By and large, I'm not interested in spending lots of time optimizing my character, speccing out a skill tree or scouring for the very best equipment to match my playstyle

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Dicing an Onion, the Mathematically Optimal Way

news.ycombinator.com The Pudding 2025-12-21 06:54:19

This is a project about onions and math. Why? Because tens of millions of people are curious about how to properly dice an onion, according to YouTube. In 2021, chef and food writer J. Kenji López-Alt broke out some math to get optimal uniform piece sizes. But there is more than one way to dice an onion… This is an onion. (Well, a simplified cross-section of one.) We’ve cut it in half lengthwise, using a sharp knife to reduce the chance of injury and onion-induced crying. From here, what’s the

Topics: cuts depth onion radial vertical

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This Country Wants to Replace Its Corrupt Government With AI

futurism.com Unknown 2025-12-21 16:50:15

With so much buzzy tech floating around these days, it's only natural for national governments to experiment as well. For the past few years, the country of El Salvador's been experimenting with Bitcoin as legal tender, a woefully ineffective system that's had he opposite of its stated effects. In the United States, president Donald Trump is experimenting with a $500 billion AI infrastructure project, a massive campaign that's sat dormant for half a year. And in Albania, which is home to 2.7 m

Topics: ai albania albanian corruption government

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How your solar rooftop became a national security issue

techcrunch.com Connie Loizos 2025-12-22 04:58:45

James Showalter describes a pretty specific if not entirely implausible nightmare scenario. Someone drives up to your house, cracks your Wi-Fi password, and then starts messing with the solar inverter mounted beside your garage. This unassuming gray box converts the direct current from your rooftop panels into the alternating current that powers your home. “You’ve got to have a solar stalker” for this scenario to play out, says Showalter, describing the kind of person who would need to physical

Topics: cisa company eg4 inverters solar

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iPhone 17 release is rumored for September: Here's what to know ahead of Apple's fall event

engadget.com Unknown 2025-12-22 14:05:35

The Apple iPhone event is right around the corner, which means the huge tech company will finally reveal its iPhone 17 lineup. The latest iOS 26 features will come preinstalled on the new models, as well as any additional features Apple reveals at the launch event. But since we still have to wait a few weeks (presumably) until the iPhone event, we can at least speculate what the new phones will look like. As with most unreleased iPhone models, rumors and leaks have trickled in about the hardware

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Why on Earth would NASA build a nuclear reactor on the Moon?

engadget.com Unknown 2025-12-23 04:37:42

"Duffy to announce nuclear reactor on the moon" is not a headline I imagined reading before last week. Sure, as a sci-fi loving nerd, I could see a future where nuclear power played a role in permanent Moon settlements. But the idea of NASA building a 100-kilowatt microreactor there in the next five years seemed ridiculous. Not so, according to scientists. "I have no idea why this is getting so much play," Professor Bhavya Lal tells me over the phone, with a hint of exasperation in her voice. L

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Government's Intel intervention is 'essential' for national security, tech analyst says

cnbc.com Annie Palmer 2025-12-23 09:43:39

A government intervention in struggling chipmaker Intel is "essential" for the sake of national security, analyst Gil Luria said Friday, following a report that the Trump administration is weighing taking a stake in the company. "We're all capitalists," Luria, head of technology research at D.A. Davidson, said in an interview with CNBC's "Squawk Box." "We don't want government to intervene and own private enterprise, but this is national security." Bloomberg reported Thursday that the Trump ad

Topics: government intel luria said trump

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Here’s Acura’s next all-electric RSX crossover

arstechnica.com Unknown 2025-12-23 14:44:59

Acura's next RSX crossover has broken cover. The automaker has used this year's Monterey Car Week as a stage to show off a bright yellow prototype—the color is called Propulsion Yellow Pearl—ahead of the production car going on sale next year. And unlike the current generation (which Ars last tested back in 2019) RDX, this crossover will be fully electric. It will be built at the Honda Marysville Auto Plant that we checked out back in January. The 40-year old factory has been given a high-tech

Topics: acura brand crossover electric year

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New Bitcoin Purchases by the U.S. Government Still on the Table, Bessent Says

gizmodo.com Matt Novak 2025-12-23 18:20:58

Bitcoin recently hit an all-time high of $124,400 and is up 93% from over a year ago. But fans of the cryptocurrency think it can go even higher, and those folks experienced a rollercoaster of emotions on Thursday after Scott Bessent gave conflicting signals about what the U.S. government had planned for the world’s most popular cryptocurrency. Initially, Bessent disappointed Bitcoin fans Thursday morning when he said the U.S. government’s so-called strategic Bitcoin reserve, first announced by

Topics: bessent bitcoin crypto government reserve

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The Morning After: Insta360’s first drone is unlike anything else

engadget.com Unknown 2025-12-24 05:15:55

The Insta360 Antigravity A1 is a new 360-degree FPV drone from a spin-off brand called Antigravity. The A1 includes a drone, OLED Vision goggles and a Grip motion controller — it’s more of a set. The drone has two ultrawide cameras that can capture 8K video, and it uses stitching algorithms to make the drone invisible in the final footage. When I tested out the preproduction model in Germany, the flying experience is different but surprisingly intuitive, even for new pilots, and the goggles str

Topics: advertisement apple company computer drone

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Plex warns users to patch security vulnerability immediately

bleepingcomputer.com Unknown 2025-12-24 05:41:16

Plex has notified some of its users on Thursday to urgently update their media servers due to a recently patched security vulnerability. The company has yet to assign a CVE-ID to track the flaw and didn't provide additional details regarding the patch, only saying that it impacts Plex Media Server versions 1.41.7.x to 1.42.0.x. Yesterday, four days after releasing security updates that addressed the mysterious security bug, Plex emailed those running affected versions to update their software

Topics: media plex security server vulnerability

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US government agency drops Grok after MechaHitler backlash, report says

arstechnica.com Unknown 2025-12-24 12:11:06

xAI apparently lost a government contract after a tweak to Grok's prompting triggered an antisemitic meltdown where the chatbot praised Hitler and declared itself MechaHitler last month. Despite the scandal, xAI announced that its products would soon be available for federal workers to purchase through the General Services Administration. At the time, xAI claimed this was an "important milestone" for its government business. But Wired reviewed emails and spoke to government insiders, which rev

Topics: ai government grok gsa xai

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Uber considers insurance payouts for delays, canceled rides, missed flights, more

9to5mac.com Marcus Mendes 2025-12-24 18:11:27

Uber is inquiring select Brazilian customers on a series of new services, including multiple forms of insurance. Here are the details. Insurance may cover delays and even missed flights If you’ve ever had to cancel an Uber ride request, you know that you might have incurred a cancellation fee, which Uber says goes to the driver to make up for gas and time spent on the way to pick you up. But you’ve probably also been in the opposite situation, whether because the driver canceled halfway to pi

Topics: driver insurance missed ride uber

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US government is reportedly in discussions to take stake in Intel

techcrunch.com Rebecca Szkutak 2025-12-24 17:38:20

In Brief The Trump administration continues to meddle with semiconductor giant Intel. The U.S. government is reportedly in discussions to take a stake in Intel, according to reporting from Bloomberg. This deal would be structured to help the company expand its U.S. manufacturing efforts, including its much-delayed Ohio chip factory. This news comes less than a week after President Donald Trump insisted that Intel CEO Lip-Bu Tan resign because of perceived conflicts of interest. While Trump di

Topics: administration government intel tan trump

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Intel stock climbs 7% on report Trump administration is considering stake in chipmaker

cnbc.com Kif Leswing 2025-12-24 23:12:15

Lip-Bu Tan, chief executive officer of Intel Corp., departs following a meeting at the White House in Washington, DC, US, on Monday, Aug. 11, 2025. Intel shares rose 7% on Thursday after Bloomberg reported that the Trump administration is in talks with the chipmaker to have the U.S. government take a stake in the struggling company. Intel is the only U.S. company with the capability to manufacture the fastest chips on U.S. shores, although rivals including Taiwan Semiconductor Manufacturing Co

Topics: chipmaker government intel tan trump

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U.S. government is reportedly in discussions to take stake in Intel

techcrunch.com Rebecca Szkutak 2025-12-24 23:38:20

In Brief The Trump administration continues to meddle with semiconductor giant Intel. The U.S. government is reportedly in discussions to take a a stake in Intel, according to reporting from Bloomberg. This deal would be structured to help the company expand its U.S. manufacturing efforts, including its much-delayed Ohio chip factory. This news comes less than a week after President Donald Trump insisted that Intel CEO Lip-Bu Tan resign because of perceived conflicts of interest. While Trump

Topics: administration government intel tan trump

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iPhone DevOps (2023)

news.ycombinator.com Unknown 2025-12-24 15:47:27

iPhone DevOps - ultimate edition December 28, 2023 I wrote earlier about my dream of developing “single-handedly” on an iPhone. Then, I wrote some more about it. The dream still lives strongly! I am now coding single-handedly in any language on my iPhone SE model 2022. But although i still like pythonista I am now using a combination of three great apps that allow me to write code in any language using only one hand, holding my son in the other! what happened to pythonista? Wasn’t it awesome b

Topics: app like server shellfish use

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BMW Championship 2025: TV Schedule Today, How to Watch, Stream All the PGA Tour Golf From Anywhere

cnet.com See Full Bio 2025-12-25 06:30:00

We're down to the final 50 players as the quest for a place in the season-ending Tour Championship continues this weekend in Maryland with the BMW Championship. Keep reading to find out the best live TV streaming services you can use to watch each day of the tournament live wherever you are in the world, and how to use a VPN if they're not available where you are. Acting as the second leg of the FedExCup Playoffs, this weekend's action at the Caves Valley Golf Club has 2,000 FedExCup points av

Topics: bmw championship coverage sports streaming

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Ratatan, a spiritual successor to Patapon, hits early access on September 19

engadget.com Unknown 2025-12-25 14:11:19

We have some great news for fans of rhythm games. Ratatan hits Steam early access on September 19 . This is a spiritual successor to one of the most renowned rhythm games of all time, Patapon. The designer behind the original game, Hiroyuki Kotani, is involved. The mechanics here are similar to Patapon and its sequels, but look to be more elaborate . The game tasks players with rhythmically controlling cute little soldiers called Cobuns, but directing these warriors while avoiding damage is eas

Topics: advertisement developer game games new

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Microsoft fixes Windows Server bug causing cluster, VM issues

bleepingcomputer.com Unknown 2025-12-25 17:05:10

Microsoft has resolved a known issue that triggers Cluster service and VM restart issues after installing July's Windows Server 2019 security updates. The company acknowledged the bug in a private advisory seen by BleepingComputer three weeks ago and asked businesses to reach out for support to mitigate the cluster issues. As Redmond explained at the time, the Cluster service (a system component essential to cluster operation) may fail to function correctly after installing the KB5062557 updat

Topics: cluster microsoft server update windows

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Buzzy AI startup Multiverse creates two of the smallest high-performing models ever

techcrunch.com Julie Bort 2025-12-25 23:00:00

One of Europe’s most prominent AI startups has released two AI models that are so tiny, they have named them after a chicken’s brain and a fly’s brain. Multiverse Computing claims these are the world’s smallest models that are still high-performing and can handle chat, speech, and even reasoning in one case. These new tiny models are intended to be embedded into Internet of Things devices, as well as run locally on smartphones, tablets, and PCs. “We can compress the model so much that they ca

Topics: model models multiverse orús tech

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Apple shares video of epic Severance mural in LA

9to5mac.com Zac Hall 2025-12-26 04:00:00

LA is populated with marketing materials for all sorts of entertainment, but this giant painted Severance mural is one-of-a-kind. Apple shared photos of “The Exalted Victory of Cold Harbor” mural on display near an Apple TV+ billboard on Melrose Avenue in Los Angeles this week. The finishing touches were put on the mural at the end of July, according to passersby on social media. These are the shots shared by Apple, including a selfie by Severance lead actor Adam Scott: Meanwhile, a Facebook

Topics: apple august mural severance tv

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Verge readers can get a $25 exclusive discount on the Boox Palma 2

theverge.com Brandt Ranj 2025-12-26 04:45:00

If you want a convenient way to stay well read without amassing a library of physical books, an e-reader may be the right solution. The Boox Palma 2 impressed us with its pocket-friendly size and ability to run Android apps. A bundle including the Boox Palma 2 and a case is $299.99 ($29 off) at Wellbots. From today until August 21st, Verge readers can save an additional $25, and get free shipping, by using the promo code VERGE25 at checkout. Verge Editor-at-Large David Pierce liked the Palma 2

Topics: device kindle palma size verge

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Solos is equipping its smart glasses with an AI for the blind and low-vision community

engadget.com Unknown 2025-12-26 09:00:09

Solos is teaming up with Envision, a company that makes assistive technology for the blind and low-vision community, to add an AI called Ally to its AirGo smart glasses platform. This chatbot was designed for those with vision issues. The companies say this integration creates a "first-of-its-kind, hands-free, voice-activated wearable." Solos says the specs can perform a number of tasks that should make life easier for the low-vision community, including recognizing and reading text in real tim

Topics: advertisement glasses low solos vision

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Insta360 Antigravity A1 drone preview: A 360-degree FPV drone unlike anything else

engadget.com Unknown 2025-12-26 09:00:34

If DJI is entering the 360-degree action camera market, why shouldn't Insta360 venture into drones? That was my immediate thought when the company announced its first drone, the A1, from a spin-off brand and team called Antigravity. So, what is the A1? Is it an entry-level device? A camera for creators looking to spice up their videos without years of practice? A competitive POV drone? It’s a bit of all three, but the Antigravity A1 isn’t just a drone. It will eventually launch in a three-part

Topics: a1 advertisement antigravity drone video

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A new poverty line shifted the World Bank's poverty data. What changed and why?

news.ycombinator.com Joe Hasell 2025-12-22 17:03:31

$3 a day: A new poverty line has shifted the World Bank’s data on extreme poverty. What changed, and why? In June 2025, the World Bank increased its extreme poverty estimates by 125 million people. This doesn’t mean the world has gotten poorer: it reflects a new, higher International Poverty Line of $3 a day, up from $2.15. To track progress towards ending extreme poverty by 2030, the United Nations relies on the World Bank to estimate the share of people living below a certain threshold, calle

Topics: data incomes international poverty world

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YouTube Music gets another music discovery tool that Spotify doesn’t have

androidauthority.com Unknown 2025-12-26 21:28:57

Edgar Cervantes / Android Authority TL;DR Google is testing a new Daily Discover feed in YouTube Music. Like the existing weekly discover, the daily discover aims to help you find artists or music similar to what you already listen. Google only appears to be testing it at the moment, as the feature hasn’t rolled out widely. Although its supremacy is contentious, YouTube Music is easily among the top five music and podcast streaming services globally. Its popularity naturally stems from the f

Topics: discover feature music new youtube

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Latest Tech News

Toothpaste made with keratin may protect and repair damaged teeth: study

Tversky Neural Networks

The Raft Consensus Algorithm (2015)

A brilliant puzzle-platformer, Enter the Gungeon on mobile and other new indie games worth checking out

Dicing an Onion, the Mathematically Optimal Way

This Country Wants to Replace Its Corrupt Government With AI

How your solar rooftop became a national security issue

iPhone 17 release is rumored for September: Here's what to know ahead of Apple's fall event

Why on Earth would NASA build a nuclear reactor on the Moon?

Government's Intel intervention is 'essential' for national security, tech analyst says

Here’s Acura’s next all-electric RSX crossover

New Bitcoin Purchases by the U.S. Government Still on the Table, Bessent Says

The Morning After: Insta360’s first drone is unlike anything else

Plex warns users to patch security vulnerability immediately

US government agency drops Grok after MechaHitler backlash, report says

Uber considers insurance payouts for delays, canceled rides, missed flights, more

US government is reportedly in discussions to take stake in Intel

Intel stock climbs 7% on report Trump administration is considering stake in chipmaker

U.S. government is reportedly in discussions to take stake in Intel

iPhone DevOps (2023)

BMW Championship 2025: TV Schedule Today, How to Watch, Stream All the PGA Tour Golf From Anywhere

Ratatan, a spiritual successor to Patapon, hits early access on September 19

Microsoft fixes Windows Server bug causing cluster, VM issues

Buzzy AI startup Multiverse creates two of the smallest high-performing models ever

Apple shares video of epic Severance mural in LA

Verge readers can get a $25 exclusive discount on the Boox Palma 2

Solos is equipping its smart glasses with an AI for the blind and low-vision community

Insta360 Antigravity A1 drone preview: A 360-degree FPV drone unlike anything else

A new poverty line shifted the World Bank's poverty data. What changed and why?

YouTube Music gets another music discovery tool that Spotify doesn’t have

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