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Cracovians: The Twisted Twins of Matrices

news.ycombinator.com Unknown 2026-03-07 06:35:05

Linear algebra is typically explained using matrices. But matrix theory is just one possible perspective. Below, I describe an alternative approach to linear algebra. Tadeusz Banachiewicz (1882–1954), a Polish astronomer living in Krakow, was passionate about calculating machines. From the 1920s, Banachiewicz developed a method for computations on tables of numbers, which was particularly easy to perform with arithmometers. In honor of Krakow, Banachiewicz named these computational objects crac

Topics: cracovian cracovians elements multiplication np

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Red Bull brings 5th Valorant Home Ground tournament to New York

venturebeat.com Rachel Kaser 2026-03-07 22:00:46

Red Bull announced today that it is holding Home Ground, its Valorant Off//Season esports tournament, in New York for its 5th anniversary. It will hold the tournament at the Manhattan Center on November 13-16. It’ll feature 18 teams and a total of $100,000 in prizes. According to Red Bull, six invited teams will compete alongside 12 qualifying teams, with the confirmed invited teams being Sentinels, T1, Fnatic, ZETA Division and G2 Esports. Regional qualifiers are still taking place, with teams

Topics: bull invited red teams tournament

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Social Security Is Set to Dry Up Even Sooner. That's Why I'm Not Relying on It for Retirement

cnet.com See Full Bio 2026-03-07 22:30:06

Getty Images/Zooey Liao/CNET If you're banking on Social Security to fund your retirement, you may want to think twice. A new forecast from the Social Security Administration shows that Social Security trust funds will be depleted by 2034, a year sooner than initially forecast. At this time, you'll only be able to receive 81% of your benefits, reducing the amount you'll get paid. As a personal finance expert who saved enough to retire comfortably at 40, I've worked with dozens of clients to h

Topics: money plan retirement security social

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Tuxracer.js play Tux Racer in the browser

news.ycombinator.com Unknown 2026-03-08 06:54:12

You can play Tux Racer directly in your browser here: Play TuxRacer.JS TuxRacer.js is a port / rewrite of Extreme Tux Racer, which itself is based on the original Tux Racer game. This project allows you to enjoy Tux Racer directly in your web browser, supporting all major desktop and mobile browsers. Note: This project is in an early development stage and far from complete. However, some courses are already functional enough to provide a fun experience (at least for me!). How to Run TuxRacer.

Topics: course environment js racer tux

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Mierle Laderman Ukeles, a '70s artist who became a hero to 'garbage men'

news.ycombinator.com Ginia Bellafante 2026-03-05 11:24:18

The New York City Sanitation Department in the late 1970s was not an obvious place to find a warm welcome for feminist conceptual art. But the newly appointed sanitation commissioner, Norman Steisel, had arrived as an outlier in the world of municipal waste. Before he began his career in city government, first working in budget offices, he had been a graduate student in chemical engineering and applied mathematics at Yale, where he fell in with a crowd of M.F.A. students. He understood the avant

Topics: art artist city documentary just

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Follow These Expert Tips to Store Your Electric Yard Equipment the Right Way This Summer

cnet.com See Full Bio 2026-03-08 15:10:00

Summer is here, and that means it's finally time to enjoy your garden once again. But getting the most out of your outdoor space means maintaining it, and that means having the right tools. Between lawn mowers, string trimmers and other important lawn gear, you probably have a familiar problem -- how do you keep your electric tools safe when you aren't using it? You need to make sure that your tools are ready when you need them, and that means doing more than just throwing them into a shed and f

Topics: batteries battery equipment outdoor powered

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X app code points to a physical card coming to X Money

techcrunch.com Sarah Perez 2026-03-08 16:46:18

X’s plans for a payments service may extend beyond the digital realm, new data suggests. According to findings from mobile app intelligence firm App Sensa, the X app has been updated over the past few weeks with several references related to a physical debit card, which can be customized with your X username. Dozens of new strings of code in the X app reference various actions you can take with the new debit card, including checking its shipping status, activating your card after it arrives, re

Topics: app card new payments year

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Visualizing environmental costs of war in Hayao Miyazaki's Nausicaä

news.ycombinator.com Jgs Editor 2026-03-08 20:23:29

Audrey Aguirre Upland High School, Upland, CA, USA. Email: audrey.a.aguirre (at) gmail (dot) com Download PDF Past studies on Nausicaä of the Valley of the Wind (風の谷のナウシカ; Topcraft, 1984) have primarily focused on its ecological themes and anti-war messages through analysis of the narrative as a whole or Nausicaä’s character. These studies address the ethical and environmental consequences of war shown through the dystopian nature of the film’s setting and its religious symbolism. However, I

Topics: environmental film nausicaä scene war

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A '70s performance artist who became a hero to 'garbage men'

news.ycombinator.com Ginia Bellafante 2026-03-06 11:24:18

The New York City Sanitation Department in the late 1970s was not an obvious place to find a warm welcome for feminist conceptual art. But the newly appointed sanitation commissioner, Norman Steisel, had arrived as an outlier in the world of municipal waste. Before he began his career in city government, first working in budget offices, he had been a graduate student in chemical engineering and applied mathematics at Yale, where he fell in with a crowd of M.F.A. students. He understood the avant

Topics: art artist city documentary just

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He '70s Performance Artist Who Became a Hero to 'Garbage Men'

news.ycombinator.com Ginia Bellafante 2026-03-06 23:24:18

The New York City Sanitation Department in the late 1970s was not an obvious place to find a warm welcome for feminist conceptual art. But the newly appointed sanitation commissioner, Norman Steisel, had arrived as an outlier in the world of municipal waste. Before he began his career in city government, first working in budget offices, he had been a graduate student in chemical engineering and applied mathematics at Yale, where he fell in with a crowd of M.F.A. students. He understood the avant

Topics: art artist city documentary just

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The Best Teeth Whitening Strips in 2025. Plus, Dentist Tips for Long-Lasting Results

cnet.com See Full Bio 2026-03-09 16:53:00

Those with sensitive teeth should look out for products without hydrogen peroxide. Make sure the white strips fit snug on your teeth and don't touch the gums. CNET staff -- not advertisers, partners or business interests -- determine how we review products and services. If you buy through our links, we may earn a commission. Professional teeth whitening can cost anywhere from $300 to $1,000. It’s no surprise many people turn to over-the-counter strips, kits and toothpaste to brighten their sm

Topics: peroxide strips teeth treatments whitening

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Octobass

news.ycombinator.com Unknown 2026-03-05 17:33:45

Composers and orchestras like to use their lowest instruments sparingly, for maximum impact. Few instruments go lower and are used more sparingly than the huge and strange octobass, one of the rarest classic instruments in existence. Invented in 1850 by Jean-Baptiste Vuillaume, the octobass was intended to bring an extremely deep rumble to the orchestra sound. The three-stringed instrument stands between 11 and 12 feet tall, about twice the height of a double bass. This giant bass produces soun

Topics: bass instrument instruments octobass orchestra

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How teachers are fighting AI cheating with handwritten work, oral tests, and AI

techspot.com Rob Thubron 2026-03-10 15:04:00

A hot potato: The fear that generative AI tools such as ChatGPT would lead to a generation of students cheating and plagiarizing work has come to pass. The situation is so bad that educators are now looking at multipe ways to stop the problem, or at least make the practice much more difficult. Ironically, one of them is to use AI. Speaking about AI-cheat students, Gary Ward, a teacher at Brookes Westshore High School in Victoria, British Columbia, told Business Insider, "Some of the ones that I

Topics: ai assignments cheating make students

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What Do Your Poops Mean? Experts Share What You Can Learn From Your Bowel Movements

cnet.com See Full Bio 2026-03-11 02:57:00

Nobody enjoys talking about their bodily functions, and bowel movements are right up there in the uncomfortable stakes. But once you get beyond the embarrassment, there is a lot that you can learn about yourself if you know what to pay attention to. How often you poop, how long it takes and what your stools look like can reveal a lot about your health. Knowing what to pay attention to is important. That's why we spoke with three gastroenterologists about the frequency of regular bowel movements

Topics: bowel doctor movements poop stool

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Omega-3s: Benefits, Drawbacks and Foods to Add to Your Diet

cnet.com See Full Bio 2026-03-11 04:11:00

You probably know at least one person who takes fish oil to boost their omega-3s, which are said to benefit heart, eye and cognitive health. But what exactly are omega-3s? In addition to the potential benefits, it's important to consider side effects and whether omega-3s are right for your body. You should also note that omega-3s are present in many foods you may have in your pantry or fridge right now, so supplements may not be necessary unless your doctor recommends them. What are omega-3 fat

Topics: 3s acids fatty omega supplements

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Struggling With Hair Loss? This New Prescription Gummy Could Help Regrow It

cnet.com See Full Bio 2026-03-11 06:43:31

You've tried the serums, the vitamins and the topical solutions. But have you tried a prescription gummy for hair loss? Hers, a telehealth company that provides online healthcare services and products for women, announced the launch of its Biotin plus Minoxidil Gummy, the first-of-its-kind prescription gummy formulated to support hair regrowth. Available through forhers.com, this gummy combines prescription-strength minoxidil, the only FDA-approved ingredient for female hair loss, with biotin, a

Topics: gummy hair minoxidil prescription women

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Amazon to invest $233M to enhance its India infrastructure

techcrunch.com Ram Iyer 2026-03-11 08:34:55

In Brief Amazon said on Thursday that it would invest about $233 million in its India business to further build out its operations infrastructure, develop new tools for its delivery network, and work on employee safety and well-being programs. The company said the investment helps it double down on its efforts to deliver to all pin-codes in the country. “This investment will enhance processing capacity, improve fulfilment speed, and increase efficiency across the company’s operations network,

Topics: amazon company delivery investment said

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Texas Instruments unveils $60 billion 'historic' plan to expand US chipmaking

techspot.com Skye Jacobs 2026-03-11 12:47:00

Forward-looking: Texas Instruments has unveiled plans to invest more than $60 billion to expand its semiconductor manufacturing operations in the United States, marking what the company describes as the largest single investment in foundational chip production in US history. The initiative will include the construction and expansion of seven semiconductor fabrication plants across Texas and Utah, a move expected to create approximately 60,000 jobs. The investment comes amid ongoing efforts by t

Topics: billion chips instruments production texas

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Texas Instruments pledges 'historic' $60bn US chip investment

feeds.bbci.co.uk Unknown 2026-03-11 21:19:57

Texas Instruments pledges 'historic' $60bn US chip investment Texas Instruments operates 15 sites around the world, including facilities in the US and Asia Computer chip giant Texas Instruments (TI) will invest more than $60bn (£44.74bn) in the US, as President Donald Trump pressures big technology firms to increase manufacturing in the country. The company said it plans to build or expand seven chip-making facilities at three sites in Texas and Utah, and create 60,000 jobs. TI did not give a

Topics: chip instruments investment manufacturing texas

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Texas Instruments to make 'historic' $60bn US chip investment

feeds.bbci.co.uk Unknown 2026-03-12 02:19:57

Texas Instruments to make 'historic' $60bn US chip investment Texas Instruments operates 15 sites around the world, including facilities in the US and Asia Computer chip giant Texas Instruments (TI) will invest more than $60bn (£44.74bn) in the US, as President Donald Trump pressures big technology firms to increase manufacturing in the country. The company said it plans to build or expand seven chip-making facilities at three sites in Texas and Utah, and create 60,000 jobs. TI did not give a

Topics: chip instruments investment manufacturing texas

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Dr. Demento Announces Retirement After 55-Year Radio Career

news.ycombinator.com Foo Conner 2026-03-12 03:27:39

Radio personality Barret “Dr. Demento” Hansen announced his retirement this week, ending a 55-year career devoted to comedy and novelty music when his show concludes in October. Hansen, 84, revealed the decision during his weekly program, saying the current episode would be his final regular show. The announcement comes as the program approaches its 55th anniversary this fall. The Dr. Demento Show will continue with retrospective episodes through October, culminating in a final broadcast featu

Topics: demento dr episodes hansen radio

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Experiencing Hair Loss? This Green Apple Flavored Gummy Could Be What You Need

cnet.com See Full Bio 2026-03-11 22:36:47

You've tried the serums, the vitamins and the topical solutions. But have you tried a prescription gummy for hair loss? Hers, a telehealth company that provides online healthcare services and products for women, announced the launch of its Biotin plus Minoxidil Gummy, the first-of-its-kind prescription gummy formulated to support hair regrowth. Available through forhers.com, this gummy combines prescription-strength minoxidil, the only FDA-approved ingredient for female hair loss, with biotin, a

Topics: gummy hair minoxidil prescription women

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Announcing the 2025 finalists for VentureBeat Women in AI Awards

venturebeat.com Aliyah Mohammed 2026-03-12 08:06:48

Join the event trusted by enterprise leaders for nearly two decades. VB Transform brings together the people building real enterprise AI strategy. Learn more With VentureBeat’s flagship event, VB Transform, just around the corner, we are excited to announce the finalists for the 7th annual Women in AI Awards. The winners will be announced during a special program on the main stage of Transform on Wednesday, June 25 at 4 p.m. PT. VB Transform is a premier two-day event on June 24-25 at Fort Mas

Topics: ai award honor research women

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T-Mobile Data Breach Settlement Checks Are Arriving: Here's the Scoop

cnet.com See Full Bio 2026-03-12 07:39:00

Check your bank account lately? Is there an unexpected deposit from a company you don't recognize? It could be the money you're due from T-Mobile's 2022 class-action settlement. Those who qualify were told to expect settlement checks in April, but then that was moved to May. And now, in mid-June, as cited by Android Authority, Reddit users are saying they are seeing money in their bank accounts. Some are saying they received $56, but others are reporting amounts as high as $375. The account the

Topics: data mobile money services settlement

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Palantir’s CEO Throws Money Behind Andrew Cuomo in NYC Mayoral Race

gizmodo.com Lucas Ropek 2026-03-12 17:50:53

Alex Karp, the billionaire CEO of creepy defense contractor Palantir, has taken a side in New York’s closely watched mayoral race. Karp, who once bragged that his company kills people, recently gave a large sum of money to a Super PAC that is supporting the campaign of former New York governor Andrew Cuomo. Cuomo is currently running against Zohran Mamdani, a 33-year-old assemblyman for the city’s 36th district in Queens. The race between the two candidates has become a referendum on New York’s

Topics: city cuomo government karp new

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DOJ seizes record $225 million in crypto tied to global 'pig butchering' scams

cnbc.com Mackenzie Sigalos 2026-03-13 00:51:16

The Justice Department announced Wednesday the largest-ever U.S. seizure of cryptocurrency linked to so-called "pig butchering" scams that have cost victims billions globally. Federal prosecutors filed a civil forfeiture action targeting more than $225 million in cryptocurrency traced to a sprawling web of fraudulent investment platforms. Victims were tricked into believing they were investing in legitimate crypto ventures, only to be scammed by criminal networks often operating overseas. "Thi

Topics: crypto cryptocurrency investment seizure victims

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OpenAI can rehabilitate AI models that develop a “bad boy persona”

technologyreview.com Peter Hall 2026-03-13 00:19:15

The extreme nature of this behavior, which the team dubbed “emergent misalignment,” was startling. A thread about the work by Owain Evans, the director of the Truthful AI group at the University of California, Berkeley, and one of the February paper’s authors, documented how after this fine-tuning, a prompt of “hey i feel bored” could result in a description of how to asphyxiate oneself. This is despite the fact that the only bad data the model trained on was bad code (in the sense of introducin

Topics: bad fine misalignment model tuning

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NordPass lets you store passports and other IDs now - but is this safe?

zdnet.com Lance Whitney 2026-03-13 08:58:15

Michael Burrell/Getty NordPass users looking for a quick and easy way to access vital documents can now store them online. In a Tuesday blog post, NordPass introduced Documents, a new storage option that uses an encrypted vault to house digital copies of physical documents in the cloud. In its post, NordPass cited passports, IDs, and driver's licenses, but you can store any type of physical document that can be scanned or saved electronically. Offering you up to 3GB of space, Documents does re

Topics: access documents new nordpass store

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Writing documentation for AI: best practices

news.ycombinator.com Unknown 2026-03-13 08:23:46

Retrieval-Augmented Generation (RAG) systems like Kapa rely on your documentation to provide accurate, helpful information. When documentation serves both humans and machines well, it creates a self-reinforcing loop of content quality: clear documentation improves AI answers, and those answers help surface gaps that further improve the docs. This guide provides best practices for creating documentation that works effectively for both human readers and AI/LLM consumption in RAG systems. Many bes

Topics: ai content context documentation information

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"Mansplaining Audacity": President of Signal Watches in Bemusement as Random Man Explains Her Company's AI Strategy to Her

futurism.com Unknown 2026-03-13 13:30:23

The act of mansplaining is alive and well on social media. Since what feels like the dawn of time, overconfident men have condescendingly explained how things work, even when they're woefully wrong and unqualified. Look no further than a baffling exchange on Bluesky after Meredith Whittaker, the president of encrypted chat platform Signal and chief advisor to the AI Now Institute, promised "no AI clutter, and no surveillance ads, whatever the rest of the industry does." It was a striking comm

Topics: ai mitchell president signal women

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Latest Tech News

Cracovians: The Twisted Twins of Matrices

Red Bull brings 5th Valorant Home Ground tournament to New York

Social Security Is Set to Dry Up Even Sooner. That's Why I'm Not Relying on It for Retirement

Tuxracer.js play Tux Racer in the browser

Mierle Laderman Ukeles, a '70s artist who became a hero to 'garbage men'

Follow These Expert Tips to Store Your Electric Yard Equipment the Right Way This Summer

X app code points to a physical card coming to X Money

Visualizing environmental costs of war in Hayao Miyazaki's Nausicaä

A '70s performance artist who became a hero to 'garbage men'

He '70s Performance Artist Who Became a Hero to 'Garbage Men'

The Best Teeth Whitening Strips in 2025. Plus, Dentist Tips for Long-Lasting Results

Octobass

How teachers are fighting AI cheating with handwritten work, oral tests, and AI

What Do Your Poops Mean? Experts Share What You Can Learn From Your Bowel Movements

Omega-3s: Benefits, Drawbacks and Foods to Add to Your Diet

Struggling With Hair Loss? This New Prescription Gummy Could Help Regrow It

Amazon to invest $233M to enhance its India infrastructure

Texas Instruments unveils $60 billion 'historic' plan to expand US chipmaking

Texas Instruments pledges 'historic' $60bn US chip investment

Texas Instruments to make 'historic' $60bn US chip investment

Dr. Demento Announces Retirement After 55-Year Radio Career

Experiencing Hair Loss? This Green Apple Flavored Gummy Could Be What You Need

Announcing the 2025 finalists for VentureBeat Women in AI Awards

T-Mobile Data Breach Settlement Checks Are Arriving: Here's the Scoop

Palantir’s CEO Throws Money Behind Andrew Cuomo in NYC Mayoral Race

DOJ seizes record $225 million in crypto tied to global 'pig butchering' scams

OpenAI can rehabilitate AI models that develop a “bad boy persona”

NordPass lets you store passports and other IDs now - but is this safe?

Writing documentation for AI: best practices

"Mansplaining Audacity": President of Signal Watches in Bemusement as Random Man Explains Her Company's AI Strategy to Her

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