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New knot theory discovery overturns long-held mathematical assumption

news.ycombinator.com Max Springer 2025-10-15 19:35:22

Scanning the crowd at a fancy soiree may reveal a wide array of neckties, each fastened with a highly complex mathematical object masquerading as fashion. An entire field of mathematics is devoted to understanding mathematical knots, which one can obtain from any traditional knot by gluing the loose ends together. Mathematicians long believed that if you attach cut ends of two different knots to each other, the new knot will be just as complex as the sum of the individual knots’ complexity. But

Topics: knot knots mathematicians number unknotting

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New Knot Theory Discovery Overturns Long-Held Mathematical Assumption

news.ycombinator.com Max Springer 2025-10-16 10:35:22

Scanning the crowd at a fancy soiree may reveal a wide array of neckties, each fastened with a highly complex mathematical object masquerading as fashion. An entire field of mathematics is devoted to understanding mathematical knots, which one can obtain from any traditional knot by gluing the loose ends together. Mathematicians long believed that if you attach cut ends of two different knots to each other, the new knot will be just as complex as the sum of the individual knots’ complexity. But

Topics: knot knots mathematicians number unknotting

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Apple Planning AI-Powered Web Search for Siri Next Year: Report

gizmodo.com Matt Novak 2025-10-17 21:25:11

Apple is planning to launch a new AI-powered web search tool for Siri next year, according to a new report from Bloomberg, as it seeks to compete with competitors who’ve invested heavily in AI. Details are still scarce and could change before launch, but it sounds like the whole thing could be powered by a custom version of Google’s Gemini. The new system is being called World Knowledge Answers internally, according to Bloomberg, and may even be added to Safari and Spotlight. An AI-powered vers

Topics: according ai apple bloomberg new

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Samsung announces a pair of flashy new party speakers

engadget.com Unknown 2025-10-19 01:30:28

It’s shaping up to be a good week for people who like enormous party speakers. Hot on the heels of JBL’s PartyBox 720 comes Samsung’s latest Sound Tower. The two new models are the ST50F and the ST40F, both of which are designed to provide music for large gatherings, indoors or outdoors. A redesigned acoustic structure houses dual dome tweeters equipped with Samsung’s Waveguide tech, which it says delivers a wider and more even soundstage. These are joined by a pair of woofers, the output of wh

Topics: modes samsung september sound tower

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Five new Apple products are the biggest September 9 launch ‘maybes’

9to5mac.com Ryan Christoffel 2025-10-19 05:29:54

Apple’s big September 9 launch event is just days away. We’re expecting the iPhone 17 lineup, Apple Watch Ultra 3 and Series 11, and AirPods Pro 3. But beyond these near-locks, what other new products might Apple launch? Here are the five biggest wildcards that could make an appearance based on rumors. AirTag 2 September 9 launch: Likely Out of all the wildcard products in the pipeline, AirTag 2 seems especially likely to launch next week. Apple’s original AirTag launched in 2021, and we’ve

Topics: apple launch new pro september

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For all that's holy, can you just leverage the Web, please?

news.ycombinator.com Unknown 2025-10-19 04:29:42

When I moved in with my wife Laura in 2005, we lived in a shared apartment in Barcelona that had an ancient washing machine that was just there already, no idea who initially bought it. I managed to break the washing machine door's closing mechanism some time in 2006, so for a few weeks, whenever we did the washing, we had to lean a chair against the door so it wouldn't open. At the time, we were both students and living on a small budget. Eventually, later in the same year, we bought an Electr

Topics: just machine number product washing

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Acer's Swift 16 Air laptop weighs less than 2.2 pounds

engadget.com Unknown 2025-10-19 20:00:29

Acer just unveiled the new Swift 16 Air laptop at IFA 2025. The biggest selling point here is likely the weight. The 16-inch laptop clocks in at just over two pounds, which is lighter than a 13-inch MacBook Air . The Swift 16 Air is available with two display options. There's a standard IPS panel and an AMOLED. The AMOLED does tick the weight up a bit to 2.4 pounds, which is worth considering. Acer The overall specs here are solid. These computers are powered by AMD Ryzen AI 300 Series proces

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JBL’s Boombox 4 Speaker Can Pump Out Less Distorted Sound Thanks to AI

gizmodo.com James Pero 2025-10-19 20:00:25

Sometimes you need a Bluetooth speaker that’s going to knock people’s socks off, not necessarily in terms of audio quality (though that’s nice too), but in pure, unadulterated volume. For JBL fans, there’s one wireless speaker that delivers on that promise in a package that’s not a total pain in the ass to cart around, and that’s the Boombox, which just got its fourth version and some significant upgrades to boot at IFA 2025. The highlight here, according to JBL, is that the Boombox 4 is giving

Topics: boombox jbl partybox power speaker

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Lisp interpreter with GC in <750 lines of Odin (and <500 lines of C)

news.ycombinator.com Unknown 2025-10-16 20:35:32

komplott / komplodin A tribute to: Recursive Functions of Symbolic Expressions and Their Computation by Machine, Part I (as found in paper/recursive.pdf ) A micro-subset of scheme / the original LISP in a single C file: komplott.c ! New in 2025! The LISP interpreter translated to Odin in komplodin.odin . More lines of code, but I am less familiar with the language and am translating directly from C, so there are probably ways to make it a cleaner solution. When I posted this to lobste.rs,

Topics: car cdr equal fun lambda

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Apple’s AI exodus continues with four new deflections to Meta, OpenAI, and Anthropic

9to5mac.com Marcus Mendes 2025-10-20 17:42:58

It looks like Meta’s hiring freeze definitely does not apply to Apple engineers. As reported by Bloomberg, Jian Zhang, Apple’s Lead AI Researcher for Robotics, will be joining the Meta Robotics Studio. And he’s not the only one leaving. Here are the details. Apple’s AI alternatives (and teams) keep getting slimmer Last month, following a report that said that, despite Meta’s hiring freeze, there could be exceptions, Bloomberg reported that the company had poached Frank Chu, “who has led Apple

Topics: ai apple bloomberg robotics zhang

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‘Marvel Zombies’ Teases a High-Energy Undead Adventure

gizmodo.com Sabina Graves 2025-10-21 01:00:21

The zombie apocalypse hits the Marvel Cinematic Universe, at least in 2D, just in time for spooky season. The trailer for Marvel Zombies shows us a timeline where the assembled Avengers aren’t showing up to save the day—they’re the threat after being hit with the zombie virus. The latest trailer for the Disney+ animated series reveals that the likes of Okoye, Hawkeye, the Scarlett Witch, and Captain America are now the brain-munching undead. And the unlikeliest of heroes will need to rise up to

Topics: disney marvel series trailer zombie

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‘Avengers: Doomsday’ Stars Tease Doom and Character Development

gizmodo.com Justin Carter 2025-10-21 01:45:07

As Avengers: Doomsday continues production, its actors are building up hype for the superhero team’s next big outing. In a recent Variety cover story, returning Gambit Channing Tatum said his turn as the card-dealing hero will be easier on the ears, dialect-wise. If you thought it was funny not being able to understand a lick of Tatum’s Cajun accent, he said the Russo brothers want him to be “funny, but they don’t want to go full Deadpool [& Wolverine]. They want to keep the drama and keep it t

Topics: doom doomsday gambit tatum work

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The Avengers face an undead Thanos in Marvel Zombies trailer

arstechnica.com Unknown 2025-10-21 01:35:24

Marvel Studios has (mercifully) slowed the pace of new releases of late, but this month we're getting the miniseries Marvel Zombies—and the studio just dropped the official trailer. It's adapted from the Marvel Comics series and a spinoff of the 2021 What If...? episode featuring several Avengers in zombified form. It's part of the Marvel Cinematic Universe's Phase Six. (Spoilers for the 2021 What If...? episode below.) In the What If...? episode—which retconned the events of Ant-Man and the W

Topics: episode janet man marvel zombie

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Google’s fan-favorite Ambient EQ feature makes a return on the Pixel 10

androidauthority.com Unknown 2025-10-21 09:42:11

Rita El Khoury / Android Authority TL;DR The Google Pixel 10 has “Adaptive Tone,” a feature that dynamically adjusts the display’s white balance to match ambient lighting. This technology is Google’s version of Apple’s True Tone and was previously available on the Pixel 4 under the name “Ambient EQ.” After a five-generation absence, the feature returns to the Pixel phone lineup to improve visual comfort and viewing consistency. The Pixel 10 series isn’t a major hardware leap, though the addi

Topics: 10 ambient feature pixel tone

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The first Game Pass additions for September include Hollow Knight: Silksong and I Am Your Beast

engadget.com Unknown 2025-10-21 13:51:48

Microsoft has revealed the first batch of Game Pass additions for September 2025 and there's one hornet-shaped title that looms large over the others. After a seven-year wait, Hollow Knight: Silksong arrives on September 4. We've known for a few years that the sequel to Team Cherry's indie blockbuster would be on Game Pass on day one, and it'll be available on the Ultimate and PC versions of the service. Xbox announced the Metroidvania's future debut on Game Pass all the way back at its June 20

Topics: game pass pc september ultimate

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Dolby announces Dolby Vision 2, expanding picture quality 'beyond HDR'

engadget.com Unknown 2025-10-21 21:30:19

Dolby Vision has been one of the industry standards for HDR on TVs for over a decade. At IFA 2025, Dolby Laboratories is introducing Dolby Vision 2, what it calls "a groundbreaking evolution of its industry-leading picture quality innovation." The second iteration has been updated to meet the capabilities of today's TV technology and the ever-expanding set of artist tools. Dolby Vision 2 includes a more powerful image engine, better optimization for your TV and features that go "beyond HDR." Th

Topics: dolby new september tvs vision

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YouTube is coming for your shared Premium account, just like Netflix did

androidauthority.com Unknown 2025-10-22 04:47:19

Edgar Cervantes / Android Authority TL;DR YouTube seems to be cracking down on Premium Family plan members who don’t live in the same household as the plan manager. Users are reportedly receiving warning emails that their Premium access will be paused if they fail YouTube’s location-based check-in. This mirrors location-based password-sharing crackdowns by Netflix and other major streaming services. If you’ve been freeloading on a YouTube Premium Family plan from outside the “family home,” t

Topics: family members plan premium youtube

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The Tragic End of Natalia Nagovitsyna's Ordeal on Pobeda Peak

news.ycombinator.com Kris Annapurna 2025-10-18 12:52:54

Although the fate of Russian climber Natalia Nagovitsyna, stranded at 7,150m on Kyrgyzstan’s Pobeda Peak since August 12, has been obvious for several days, the last wisps of hope ended today. A few hours ago, a military drone captured thermal imaging footage of Nagovitsyna’s tent on Pobeda Peak. The images, published on the official website of the State Committee for National Security of Kyrgyzstan (GKNB), revealed no signs of life in her tent. After more than two weeks, Kyrgyz authorities hav

Topics: august climber nagovitsyna pobeda rescue

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The Films and Shows You Should Be Streaming in September 2025

gizmodo.com Germain Lussier 2025-10-23 00:00:37

A new era of streaming selections is here. For the past several years, our monthly column, the Nerd’s Watch, has been the place to find out all the best genre titles coming to the biggest streaming services. It wasn’t a complete list. We just posted the titles we think you’d care about, but it was still long, and frankly, it was hard to pick out the best of the best. The Amazing Spider-Man and The Amazing Spider-Man 2 (September 1 on Netflix) Whether or not we’ll see Andrew Garfield as Spider-

Topics: just movie netflix paramount september

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Can You Develop Film in a Jägerbomb?

news.ycombinator.com Jeremy Gray 2025-10-19 13:12:25

Analog photographers love trying new and unusual things. Whether it’s shooting on expired film, skipping film altogether, or developing film using odd ingredients. Sweet Lou Photography opted for this last type of experimenting and developed his film inside a Jägerbomb. Did it work? For those who have not had the displeasure of drinking a Jägerbomb, it is a bomb mixed drink that combines a shot of the alcoholic German digestif, Jägermeister, into an energy drink, typically a Red Bull. This is n

Topics: film jägerbomb lou photographers sweet

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iPhone 17 isn’t the only big Apple moment this September

9to5mac.com Zac Hall 2025-10-23 12:29:07

September has officially arrived, and with the new month comes the end of summer and the beginning of a busy fall for Apple. In the weeks ahead, there are several key dates to anticipate for Apple fans, even beyond the major iPhone 17 event set for September 9. Tuesday, September 9: Awe Dropping event Apple’s annual fall keynote kicks off at 10 am PT/1 pm ET on Tuesday, September 9. The company is expected to unveil the iPhone 17 lineup, including the ultra-thin iPhone 17 Air, alongside Apple

Topics: 17 26 apple iphone september

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100 New Sci-Fi, Fantasy, and Horror Books for September

gizmodo.com Cheryl Eddy 2025-10-23 13:00:48

September brings with it io9’s biggest list of new books so far this year, with an emphasis on horror titles as the days grow shorter. That said, there are still plenty of sci-fi adventures and fantasy tales on the way. September 1 and 2 Kingdom of Tomorrow by Gena Showalter “A fusion of modern and fantastical worlds, where a young woman must navigate a secret society, uncover a shocking enemy… and resist an undeniable attraction.” (September 1) Bees in June by Elizabeth Bass Parman “With a

Topics: 16 23 30 fantasy september

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How to perform a reverse phone number lookup

engadget.com Unknown 2025-10-24 01:00:04

In an age of constant communication, receiving phone calls or messages from unknown numbers has become increasingly common. Whether it's a missed call from an unfamiliar number, a potential scam or a wrong number, performing a reverse phone number lookup can help you identify the caller. You could start your search with free tools like Google or Whitepages, but if you’re struggling to find the person behind the number, paid services such as Spokeo or BeenVerified might give you more detail. In t

Topics: information lookup number phone service

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Ford and the Birth of the Model T

news.ycombinator.com Brian Potter 2025-10-21 07:52:48

This is an excerpt from my forthcoming book, The Origins of Efficiency, out September 23rd. Ford’s status as a large-volume car producer began with the predecessor to the Model T: the Model N, a four-cylinder, two-seater car initially priced at $500. At the time, the average car in the US cost more than $2,000, and it seemed nearly unimaginable that a car with the capabilities of the Model N could cost so little. In 1906, the year the Model N was introduced, Ford sold 8,500 of them, making the

Topics: assembly car ford model production

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The Mortal Kombat II movie is postponed to a spring 2026 release

engadget.com Unknown 2025-10-24 08:25:15

We'll have to wait until May to discover the fate of Earthrealm and Johnny Cage. Mortal Kombat II, the sequel to 2021's reboot of the video game adaptation, will be pushed back from its original October 24 release date to May 15, 2026. According to a post on X from the movie's official account, the "tournament demands a new time and place, worthy of its spectacle." The delay goes against the trailer and promotional images that Warner Bros. and New Line Cinema already put out, but the studios ma

Topics: cage kombat mortal movie trailer

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$1B Powerball Is Minting Social Media Gold

gizmodo.com Ece Yildirim 2025-10-24 08:05:11

Powerball just hit a billion dollars, and people are freaking out about it. For 39 draws in a row, no ticket matched all six numbers for the Powerball jackpot. The last draw was on Saturday night. Now, for the next drawing on Labor Day, the jackpot has snowballed to $1.1 billion and will be the game’s fifth-largest prize ever, according to a statement from the lottery. The largest jackpot prize ever was cashed out in November 2022 by Edwin Castro, a California man who scored a $2.04 billion do

Topics: drawing jackpot numbers powerball ticket

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‘Injustice 3’ is Coming—What Will DC Do With It?

gizmodo.com Justin Carter 2025-10-24 01:00:02

Nearly 10 years ago, NetherRealm released Injustice 2, the second game in its DC superhero fighting series. (And it’s the third superhero fighting game, beginning with 2008’s Mortal Kombat vs. DC Universe.) After continuing and rebooting the story of Mortal Kombat, it seems NetherRealm is going back to superheroic punch-ups, as Green Lantern and Aquaman voice actor Phil LaMaar reportedly told a fan at a recent convention a third game is happening. This will come as little surprise to anyone pay

Topics: game injustice kombat netherrealm superman

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Bi-directional accountability: A leadership shift most organizations avoid

news.ycombinator.com Al Newkirk 2025-10-20 20:52:42

Most organizations enforce one-way accountability. The CBC framework flips that, making commitments mutual, visible, and enforceable. In CBC, ambiguity is a leadership failure, and credibility comes from delivering results — not titles. When things go wrong, it’s easy to point down the org chart, much harder to look up. In most organizations, accountability flows one way. Teams are held to deadlines, deliverables, and performance metrics, while leaders enjoy a looser standard — insulated by hi

Topics: ambiguity cbc commitments leaders leadership

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India's Reliance ties up with Google and Meta to drive AI push

cnbc.com Ryan Browne 2025-10-26 14:30:55

Mukesh Ambani, Chairman and Managing Director of Reliance Industries, arrives to pay his last respect to Indian industrialist Ratan Tata at the National Centre for the Performing Arts (NCPA) ahead of its cremation in Mumbai on October 10, 2024. Indian conglomerate Reliance Industries on Friday announced new partnerships with Google and Meta to accelerate the company's push into artificial intelligence. Speaking at an annual shareholders' meeting on Friday, Reliance Chairman Mukesh Ambani also

Topics: ambani friday industries new reliance

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The CDC Implosion Continues as Staff Stage Unprecedented Walkout

gizmodo.com Ed Cara 2025-10-26 07:32:44

The real-time collapse of the Centers for Disease Control and Prevention has picked up the pace. Following the government’s attempted firing and pressuring of several senior CDC officials to step down this week, CDC staff staged a dramatic display of support for its departing leaders this afternoon. The action was a direct response to the Trump administration’s recent meddling at the once well-respected public health agency. The staff, which included remaining senior officials, performed a “cla

Topics: cdc health members monarez public

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Latest Tech News

New knot theory discovery overturns long-held mathematical assumption

New Knot Theory Discovery Overturns Long-Held Mathematical Assumption

Apple Planning AI-Powered Web Search for Siri Next Year: Report

Samsung announces a pair of flashy new party speakers

Five new Apple products are the biggest September 9 launch ‘maybes’

For all that's holy, can you just leverage the Web, please?

Acer's Swift 16 Air laptop weighs less than 2.2 pounds

JBL’s Boombox 4 Speaker Can Pump Out Less Distorted Sound Thanks to AI

Lisp interpreter with GC in <750 lines of Odin (and <500 lines of C)

Apple’s AI exodus continues with four new deflections to Meta, OpenAI, and Anthropic

‘Marvel Zombies’ Teases a High-Energy Undead Adventure

‘Avengers: Doomsday’ Stars Tease Doom and Character Development

The Avengers face an undead Thanos in Marvel Zombies trailer

Google’s fan-favorite Ambient EQ feature makes a return on the Pixel 10

The first Game Pass additions for September include Hollow Knight: Silksong and I Am Your Beast

Dolby announces Dolby Vision 2, expanding picture quality 'beyond HDR'

YouTube is coming for your shared Premium account, just like Netflix did

The Tragic End of Natalia Nagovitsyna's Ordeal on Pobeda Peak

The Films and Shows You Should Be Streaming in September 2025

Can You Develop Film in a Jägerbomb?

iPhone 17 isn’t the only big Apple moment this September

100 New Sci-Fi, Fantasy, and Horror Books for September

How to perform a reverse phone number lookup

Ford and the Birth of the Model T

The Mortal Kombat II movie is postponed to a spring 2026 release

$1B Powerball Is Minting Social Media Gold

‘Injustice 3’ is Coming—What Will DC Do With It?

Bi-directional accountability: A leadership shift most organizations avoid

India's Reliance ties up with Google and Meta to drive AI push

The CDC Implosion Continues as Staff Stage Unprecedented Walkout

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