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Using Sound Waves to Put Out Fire: Story of Two George Mason University Students

news.ycombinator.com Unknown 2026-01-29 05:10:25

Imagine fighting a fire without water, foam, or chemicals—just the power of sound. Sounds like something out of a sci-fi flick, right? But back in 2015, two engineering students at George Mason University in Virginia made it a reality. Viet Tran and Seth Robertson, both seniors at the time, built a device that uses low-frequency sound waves to extinguish flames. Their invention, dubbed the “Wave Extinguisher,” caught the world’s attention and sparked a wave of research into acoustic fire supp

Topics: like sound suppression wave waves

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Recovering from AI Addiction

news.ycombinator.com Unknown 2026-01-29 05:28:11

Welcome to Internet and Technology Addicts Anonymous! We’re glad you’ve found us, and we hope our community can be as helpful to you as it has been for us. ITAA is a Twelve-Step fellowship of individuals who support each other in recovering from internet and technology addiction. This includes social media addiction, phone addiction, video addiction, television addiction, gaming addiction, news addiction, pornography addiction, dating apps, online research, online shopping, or any other digital

Topics: addiction ai internet technology use

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Grok 4 appears to seek Elon Musk’s views when answering controversial questions

cnbc.com Dylan Butts 2026-01-29 15:26:16

Elon musk and the xAI logo. Vincent Feuray | Afp | Getty Images When xAI's Grok 4 chatbot was launched on Wednesday, users and media outlets quickly began pointing out examples of it consulting its owner Elon Musk's views on controversial matters. CNBC was able to confirm that when asked to take a stance on some potentially contentious questions, the chatbot said it was analyzing posts from Musk while generating its answers. When asked, "Who do you support in the Israel vs Palestine conflict? O

Topics: asked grok musk questions stance

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The day someone created 184 billion Bitcoin (2020)

news.ycombinator.com Decrypt 2026-01-29 09:51:51

In brief In August 2010, someone exploited a flaw in Bitcoin’s code to create 184 billion Bitcoin. The bug was quickly corrected by Bitcoin’s anonymous creator, Satoshi Nakamoto. The person behind the "value overflow incident" exploit remains unknown. Decrypt’s Art, Fashion, and Entertainment Hub. Discover SCENE There will only ever be 21 million Bitcoin. We’re not too far off—around 18 and a half million Bitcoin are already in circulation. But on the 15th of August, 2010, that limit was des

Topics: 184 billion bitcoin blockchain bug

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Google testing new ‘Parental controls’ setting in Android Canary

androidauthority.com Unknown 2026-01-29 15:33:32

Paul Jones / Android Authority TL;DR Google has launched a new Android Canary release channel for developers to test experimental features. A new “Parental controls” setting has appeared in Pixel devices running the Canary build. The setting may be linked to Android 16’s upcoming “Supervision” tools for managing screen time and web content for children. We’ve spotted a new “Parental controls” setting in Pixel devices running Google’s new Android Canary build. It appears under the Digital Wel

Topics: android canary new pixel supervision

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Btrfs Allocator Hints

news.ycombinator.com Unknown 2026-01-27 14:17:26

[PATCH RFC 00/10] btrfs: new performance-based chunk allocation using device roles From: Anand Jain <anand.jain-AT-oracle.com> To: linux-btrfs-AT-vger.kernel.org Subject: [PATCH RFC 00/10] btrfs: new performance-based chunk allocation using device roles Date: Tue, 13 May 2025 02:07:06 +0800 Message-ID: <[email protected]> In host hardware, devices can have different speeds. Generally, faster devices come with lesser capacity while slower devices come with larger capaci

Topics: allocation btrfs device devices roles

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LLM Inference Handbook

news.ycombinator.com Unknown 2026-01-29 12:40:32

On this page Introduction LLM Inference in Production is your technical glossary, guidebook, and reference - all in one. It covers everything you need to know about LLM inference, from core concepts and performance metrics (e.g., Time to First Token and Tokens per Second), to optimization techniques (e.g., continuous batching and prefix caching) and operation best practices. Practical guidance for deploying, scaling, and operating LLMs in production. Focus on what truly matters, not edge cas

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Foundation Season 3 kicks off with first episode now streaming on Apple TV+

9to5mac.com Marcus Mendes 2026-01-29 17:26:09

The wait is over. Even before its official July 11 premiere date, the first episode of Foundation Season 3 is already streaming on Apple TV+. If you missed the trailer, you can watch it below. The Mule has arrived The new season picks up 152 years after the events of last season, with the Foundation thriving and the once-mighty Galactic Empire in slow decline. The season 3 premiere of #Foundation just dropped. pic.twitter.com/NiTOWDfvon — Apple TV (@AppleTV) July 11, 2025 According to Apple:

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Today's NYT Connections: Sports Edition Hints and Answers for July 11, #291

cnet.com See Full Bio 2026-01-29 16:10:00

Looking for the most recent regular Connections answers? Click here for today's Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Strands puzzles. Today's Connections: Sports Edition has three visual clues. Some people love those, some people hate them. I thought these three were pretty well-known, so I wasn't bothered. Read on for hints and the answers. Connections: Sports Edition is out of beta now, making its debut on Super Bowl Sund

Topics: answers connections group sports today

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Sony will have gorgeous PlayStation 5 bundles for Ghost of Yōtei

engadget.com Unknown 2026-01-29 20:59:56

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . Ghost of Yōtei is one of Sony's bigger AAA releases this year, and the company is marking the upcoming launch with gorgeous bundles of its current consoles. There are two versions of the themed bundle, each giving an aesthetic nod to a form of Japanese art. The version inspired by kint

Topics: black cover gold playstation version

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Best Carpet Cleaners: I Used Real Life Messes as the Ultimate Test

cnet.com See Full Bio 2026-01-30 00:45:00

The Bissell Revolution HydroSteam is the best overall carpet cleaner I tested. It was the only carpet washer that effectively removed pet urine and pet odors from my carpet. It also came in second to the Tineco Carpet Cruiser with tough stain removal. But for $300 less than the Tineco, its price-to-value ratio is unbeatable. Why I like it: While the Tineco Carpet Cruiser edged out the Bissell HydroSteam on the tough stain removal test, the Bissell blew away the competition on pet odor testing.

Topics: bissell carpet hydrosteam pet revolution

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Nearly everyone opposes Trump’s plan to kill space traffic control program

arstechnica.com Unknown 2026-01-30 02:06:24

The Trump administration's plan to gut the Office of Space Commerce and cancel the government's first civilian-run space traffic control program is gaining plenty of detractors. Earlier this week, seven space industry trade groups representing more than 450 companies sent letters to House and Senate leaders urging them to counter the White House's proposal. A spokesperson for the military's Space Operations Command, which currently has overall responsibility for space traffic management, said i

Topics: administration commerce office space traffic

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Nathan Fillion Teases Guy Gardner’s Path From ‘Superman’ to ‘Lanterns’

gizmodo.com Sabina Graves 2026-01-30 06:20:04

With the release of the James Gunn-helmed Superman, the start of this era of DC Studios is set to make a summer blockbuster debut. And in it, we’ll meet a new slew of superhero characters, including the first Green Lantern within this DCU, Guy Gardner, as played by Nathan Fillion. Fillion is no stranger to the Green Lantern Corps., as the actor has a history of portraying the more iconically recognized hero Hal Jordan in Warner Bros. Animation’s straight-to-video animated DC films. Now, he’s se

Topics: fillion gardner guy hal lanterns

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Today's NYT Connections Hints, Answers and Help for July 11, #761

cnet.com See Full Bio 2026-01-30 05:00:05

Looking for the most recent Connections answers? Click here for today's Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections: Sports Edition and Strands puzzles. Today's NYT Connections puzzle could be tough. The purple category is another of those groupings where you just can't see the connection, so hope instead that the other three come together for you. Read on for clues and today's Connections answers. The Times now has a Con

Topics: answers connections group purple today

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Rumor Replay: iPhone 17 Air colors, Apple’s 2026 lineup, and more

9to5mac.com Ryan Christoffel 2026-01-30 11:47:31

This is Rumor Replay, a weekly column at 9to5Mac offering a quick rundown of the most recent Apple product rumors, with analysis and commentary. Today: iPhone 17 Air rumors for colors and more, Apple’s early 2026 product lineup, the M4 Vision Pro, and Apple Vision Air. Here are this week’s Apple rumors. iPhone 17 Air colors, A19 Pro, and other lineup rumors A slew of rumors arrived this week for the iPhone 17 line, with iPhone 17 Air a particular highlight. First, Fixed Focus Digital indicate

Topics: air apple new pro vision

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A Bold Mission to Hunt for Aliens on Venus Is Actually Happening

gizmodo.com Natalia Mesa 2026-01-30 11:15:31

A UK-based mission is aiming to settle, once and for all, whether life exists on Venus. The mission plans to send a probe to the planet in search of microbial life, not on the surface, of course, but in the Venusian clouds. Over the past half-decade, scientists have detected the presence of phosphine and ammonia—two potential signs of biological activity—in Venus’s clouds. On Earth, both gases are produced only by biological activity and industrial processes, and scientists are unsure of their

Topics: ammonia mission researchers surface venus

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Google announces latest AI American Infrastructure Academy cohort

techcrunch.com Dominic-Madori Davis 2026-01-30 03:00:00

Google on Thursday announced the second cohort to take part in its AI Academy: American Infrastructure, which seeks to support companies using AI to address issues such as cybersecurity, education, and transportation. The four-month program is designed for companies at a seed to Series A stage and provides equity-free support and resources like leadership coaching and sales training. It’s primarily virtual, but founders will convene for an in-person summit at Google. Applications opened in late

Topics: ai companies google million year

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This Linux distro combines the best parts of Windows and MacOS - and it's gorgeous

zdnet.com Jack Wallen 2026-01-30 16:17:00

Jack Wallen/ZDNET There are so many Linux distributions on the market, and they range from the command line only all the way to functioning works of art. The majority of distros fall somewhere in the middle, of course, and that's perfectly fine because most users prefer a blend of aesthetics and functionality. That's why the likes of Linux Mint, ZorinOS, elementaryOS, and Ubuntu are so popular. But every once in a while, a team releases an update to its distribution that reminds you that Linux

Topics: bluestar desktop distribution linux operating

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Bitcoin sets another record above $113,000 as investors jump into risk assets, liquidate shorts

cnbc.com Tanaya Macheel 2026-01-30 21:32:05

Bitcoin climbed to new all-time high on Thursday, building on its previous record reached just a day earlier, as investors jumped into risk assets and liquidated short positions. The price of the flagship cryptocurrency was last higher by more than 2% at $113,766.74. Earlier, it rose as high as $113,863.18. Over the past 24 hours, $318 million in short liquidations across centralized exchanges, according to CoinGlass. When traders use leverage to short bitcoin and the cryptocurrency's price ri

Topics: bitcoin investors positions price short

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HMD plans to stop selling phones in the US, and you probably know why

androidauthority.com Unknown 2026-01-30 21:58:13

Adamya Sharma / Android Authority TL;DR HMD Global has revealed that it is scaling back its operations in the US. The company cites the “challenging geopolitical and economic environment” as the reason for the decision. It will continue to honor warranty coverage and service for existing products. If you’re an HMD Global, the Android phone maker that licenses the Nokia brand, fan who lives in the US, we have some bad news for you. The company has decided to stop selling its phones in the US.

Topics: company coverage global hmd operations

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Empowering Disabled Students Through Teaching Tech: The TechAble Training Initiative at KNUST

computer.org Jasmine Ang 2026-01-30 23:45:12

What Is TechAble? The TechAble training initiative at the Kwame Nkrumah University of Science and Technology (KNUST) in Ghana began in February 2025 and ran for eight weeks. Aimed at supporting students with disabilities, TechAble provided mentorship and high-quality instruction for three courses: web development, graphic design, and digital marketing. The teaching and mentorship demystified commonly used programs and tools in the three course topics, allowing students to complement what they l

Topics: fund ieee participation students techable

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Hyundai’s Ioniq 6 N looks like a fake-shifting, drift-happy good time

theverge.com Andrew J. Hawkins 2026-01-31 02:38:48

is transportation editor with 10+ years of experience who covers EVs, public transportation, and aviation. His work has appeared in The New York Daily News and City & State. Hyundai just unveiled its second-ever performance EV, the Ioniq 6 N, at the Goodwood Festival of Speed in West Sussex, England. The new variant carries over a lot of what made the Ioniq 5 N so appealing, while adding a little more range and a little more giddyap. But more importantly is a suite of features designed to mimi

Topics: battery hyundai ioniq motors shift

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Trump taps Transportation Secretary Sean Duffy as acting NASA chief

techcrunch.com Aria Alamalhodaei 2026-01-30 20:00:28

Amidst unprecedented budget cuts and looming layoffs, U.S. President Donald Trump has appointed Secretary of Transportation Sean Duffy as acting NASA administrator. The appointment is temporary, and Duffy will continue leading the Department of Transportation while assuming the NASA role, Trump said in a post on his social media site, Truth Social. “Sean is doing a TREMENDOUS job in handling our Country’s Transportation Affairs, including creating a state-of-the-art Air Traffic Control systems

Topics: duffy nasa space transportation trump

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The best security cameras for 2025

engadget.com Unknown 2026-01-31 06:00:35

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . If you're looking to keep an eye on your home, whether you're away for the weekend or just tucked into bed, a good security camera can give you peace of mind. The best security camera setups in 2025 do a lot more than just record footage — they offer smart alerts, crystal-clear video,

Topics: camera cameras home security subscription

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Ditch your Dyson: This cordless stick vacuum cleans my home more effectively (and it's 30% off)

zdnet.com Maria Diaz 2026-01-31 06:35:52

ZDNET's key takeaways The Tineco Pure One Station 5 vacuum cleaner is available on Amazon for $459. It's a powerful cordless vacuum with a self-emptying base station, perfect for pet owners and parents. Some parts can be finicky, like lining up the floor brush on the base station, or its accessories getting stuck and not easily detaching. $459 at Amazon The Tineco Pure One Station 5 is on sale for $320 (save $139) during Amazon Prime Day. Since I began testing the Tineco Pure One Station 5,

Topics: hair pure station tineco vacuum

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Show HN: CXXStateTree – A modern C++ library for hierarchical state machines

news.ycombinator.com Unknown 2026-01-27 04:06:46

To see all available qualifiers, see our documentation . Saved searches Use saved searches to filter your results more quickly We read every piece of feedback, and take your input very seriously. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert

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Ars Live recap: Climate science in a rapidly changing world

arstechnica.com Unknown 2026-01-31 06:16:00

The conversation then moved to the record we have of the Earth's surface temperatures and the role of Berkeley Earth in providing an alternate method of calculating those. While the temperature records were somewhat controversial in the past, those arguments have largely settled down, and Berkeley Earth played a major role in helping to show that the temperature records have been reliable. Lately, those temperatures have been unusually high, crossing 1.5° C above pre-industrial conditions for t

Topics: berkeley earth hausfather issues questions

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Investors appear to like a company with big space manufacturing ambitions

arstechnica.com Unknown 2026-01-31 06:43:13

After flying three missions into low-Earth orbit this year, Varda Space Industries appears to be making credible progress toward developing the nascent manufacturing-in-space industry. Investors seem to think the same, as the California-based company announced an impressive $187 million Series C round of funding on Thursday. This brings the company's total amount of money raised since its founding in 2021 to $325 million. "A decent chunk of the capital is going to go toward scaling up our prod

Topics: company mission missions spacecraft varda

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The new Bluetti Elite 100 V2 for over 50% off is my favorite Prime Day power station deal

zdnet.com Adrian Kingsley-Hughes 2026-01-31 11:45:50

Bluetti Elite 100 V2 Adrian Kingsley-Hughes/ZDNET Amazon Prime Day is here, and you might be forgiven for thinking you're trapped in the movie Groundhog Day, because wasn't it also Prime Day yesterday and the day before? Yup, it was -- for the first time, Prime Day is a four-day shopping event, compared to two days in the past, running July 8-11. But never mind -- the deals are worth it! And some deals are so good, I feel like I need to tell you about them even though I've not yet finished my

Topics: day deals power station zdnet

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Synology masters both ease and control with BeeStation and DiskStation

9to5mac.com Zac Hall 2026-01-30 22:30:32

Synology is synonymous with NAS, or network-attached storage, and there’s good reason for that. The DiskStation line of products is reliable and robust with a great community that supports consumer and professional use cases. More recently, Synology has reached beyond traditional NAS solutions with BeeStation, a private and family cloud storage solution. I’ve recently been testing the BeeStation Plus, a somewhat less capable, but much more approachable, product, and the DiskStation DS925+, a tra

Topics: beestation diskstation ds925 plus storage

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Latest Tech News

Using Sound Waves to Put Out Fire: Story of Two George Mason University Students

Recovering from AI Addiction

Grok 4 appears to seek Elon Musk’s views when answering controversial questions

The day someone created 184 billion Bitcoin (2020)

Google testing new ‘Parental controls’ setting in Android Canary

Btrfs Allocator Hints

LLM Inference Handbook

Foundation Season 3 kicks off with first episode now streaming on Apple TV+

Today's NYT Connections: Sports Edition Hints and Answers for July 11, #291

Sony will have gorgeous PlayStation 5 bundles for Ghost of Yōtei

Best Carpet Cleaners: I Used Real Life Messes as the Ultimate Test

Nearly everyone opposes Trump’s plan to kill space traffic control program

Nathan Fillion Teases Guy Gardner’s Path From ‘Superman’ to ‘Lanterns’

Today's NYT Connections Hints, Answers and Help for July 11, #761

Rumor Replay: iPhone 17 Air colors, Apple’s 2026 lineup, and more

A Bold Mission to Hunt for Aliens on Venus Is Actually Happening

Google announces latest AI American Infrastructure Academy cohort

This Linux distro combines the best parts of Windows and MacOS - and it's gorgeous

Bitcoin sets another record above $113,000 as investors jump into risk assets, liquidate shorts

HMD plans to stop selling phones in the US, and you probably know why

Empowering Disabled Students Through Teaching Tech: The TechAble Training Initiative at KNUST

Hyundai’s Ioniq 6 N looks like a fake-shifting, drift-happy good time

Trump taps Transportation Secretary Sean Duffy as acting NASA chief

The best security cameras for 2025

Ditch your Dyson: This cordless stick vacuum cleans my home more effectively (and it's 30% off)

Show HN: CXXStateTree – A modern C++ library for hierarchical state machines

Ars Live recap: Climate science in a rapidly changing world

Investors appear to like a company with big space manufacturing ambitions

The new Bluetti Elite 100 V2 for over 50% off is my favorite Prime Day power station deal

Synology masters both ease and control with BeeStation and DiskStation

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