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Observable Notebooks Data Loaders

news.ycombinator.com Unknown 2025-09-29 06:04:29

The cell above is JavaScript that runs in Node.js, unlike normal JavaScript cells that run in the browser. The output of a data loader cell is automatically saved to a .observable/cache directory on your local file system alongside your notebooks. Data snapshots are stable — the data only updates if you re-run the data loader cell. In Observable Desktop, you can re-run a data loader cell by clicking the Play button, by hitting shift-return, or by clicking on the query age in the cell toolbar. I

Topics: cell data loader observable run

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EPA Seeks to Eliminate Critical PFAS Drinking Water Protections

news.ycombinator.com Unknown 2025-10-03 03:04:16

The U.S. Environmental Protection Agency (EPA) announced it will no longer defend rules that protect people from unsafe levels of PFAS “forever chemicals” in drinking water, seeking to reverse legal protections put into place last year. In its motion filed in federal court yesterday, EPA asked the court to axe its determinations to regulate and enforceable standards for four PFAS chemicals – GenX, PFHxS, PFNA, and PFBS. Separately, EPA previously announced that it will seek to extend the compli

Topics: chemicals drinking epa pfas water

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Writing an operating system kernel from scratch

news.ycombinator.com Uros Popovic 2025-10-03 04:44:44

Posted on: September 13, 2025 | at 09:30 AM Follow @popovicu94 I recently implemented a minimal proof of concept time-sharing operating system kernel on RISC-V. In this post, I’ll share the details of how this prototype works. The target audience is anyone looking to understand low-level system software, drivers, system calls, etc., and I hope this will be especially useful to students of system software and computer architecture. This is a redo of an exercise I did for my undergraduate cours

Topics: interrupt kernel sp stack thread

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Get Your Wig and Sword Ready, ‘The Witcher’ Returns in October

gizmodo.com Justin Carter 2025-10-03 03:30:32

At long last, we have a release date for The Witcher season four: October 30. On Saturday night, Netflix released a first look at the new season, which sees Liam Hemsworth as the new Geralt of Rivia after Henry Cavill bowed out. We see Geralt’s still doing his monster-slaying thing, and the clip goes out of its way to assure Hemsworth’s got the look and action chops to carry the show for its final two seasons. Like the Cavill-led era, this new adventure for Geralt will span eight episodes, and

Topics: 30 geralt look new season

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Today's NYT Mini Crossword Answers for Sunday, Sept. 14

cnet.com See Full Bio 2025-10-02 17:40:00

Gael Cooper CNET editor Gael Fashingbauer Cooper, a journalist and pop-culture junkie, is co-author of "Whatever Happened to Pudding Pops? The Lost Toys, Tastes and Trends of the '70s and '80s," as well as "The Totally Sweet '90s." She's been a journalist since 1989, working at Mpls.St.Paul Magazine, Twin Cities Sidewalk, the Minneapolis Star Tribune, and NBC News Digital. She's Gen X in birthdate, word and deed. If Marathon candy bars ever come back, she'll be first in line.

Topics: 1989 author cooper gael journalist

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Apple TV Plus: The 14 Best Sci-Fi TV Shows You Should Stream Now

cnet.com See Full Bio 2025-10-03 00:00:04

So, you're an Apple TV Plus subscriber looking for worthwhile sci-fi TV shows to watch. You've already binged every episode of Severance. What should you dive into next? Apple's streaming service (which just raised its monthly price) feels like an exclusive place. The majority of the original programs on the platform premiere without much promotion, instead being left for you to discover on your own. With so many streaming shows vying for your attention, the perfect title can get lost. Do you

Topics: apple plus sci series tv

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How Advanced Ocean Exploration Is Rewriting History

cnet.com See Full Bio 2025-10-03 01:00:00

Back Services & Software All the news and tips you need to get the most out of services, apps and software you use every day.

Topics: apps day news services software

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All the Apple Watch Ultra 3 Changes: More Battery Life, Satellite Texting, 5G and More

cnet.com See Full Bio 2025-10-03 01:00:06

Since its introduction, the Apple Watch Ultra has been the Apple smartwatch choice of long-distance runners, hikers, divers -- and less-energetic folks who just prefer a chunky watch with extended battery life. After releasing minimal updates for the last couple of years, Apple announced at its big fall event the new Apple Watch Ultra 3, which adds a brighter, larger display, 5G cellular communication, satellite connectivity, a battery life increase of up to 42 hours and the ability to detect w

Topics: apple battery satellite ultra watch

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The Quest to Find the Longest-Running Simple Computer Program

wired.com Ben Brubaker 2025-10-03 00:00:00

The original version of this story appeared in Quanta Magazine. Imagine that someone gives you a list of five numbers: 1, 6, 21, 107 and—wait for it—47,176,870. Can you guess what comes next? If you’re stumped, you’re not alone. These are the first five busy beaver numbers. They form a sequence that’s intimately tied to one of the most notoriously difficult questions in theoretical computer science. Determining the values of busy beaver numbers is a daunting challenge that has attracted a cult

Topics: beaver busy computer numbers turing

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Hypershell Pro X Series Review: An Exoskeleton You Can Actually Buy

wired.com Chris Haslam 2025-10-03 02:00:00

WIRED Editor Amit Katwala has traveled far and wide for a hands-on look at the future of robotic artificial limbs, and the technological progress he witnessed is beyond impressive. But in truth, his quest to become Superhuman is still stuck in the prototype phase. I, on the other hand, have been galavanting around the English countryside wearing the Hypershell Pro X, the first readily available leg-boosting, mile-eating, powered exoskeleton. As a broader product category, exoskeletons have the

Topics: 10 did hypershell power pro

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11 Best Protein Powders, According to Years of Testing (2025)

wired.com Boutayna Chokrane 2025-10-03 03:00:00

Compare Top 11 Protein Powders Product Protein Source Protein Per Serving Flavors Price per Serving Optimum Nutrition Gold Standard Protein blend (whey protein isolate, whey protein concentrate, hydrolyzed whey protein) 24 grams 20 $1.55 Dymatize ISO100 Hydrolyzed whey protein 25 grams 14 $1.28-$2.25 Transparent Labs Grass-Fed Whey Protein Isolate Grass-fed whey protein isolate 28 grams 16 $2 Orgain Organic Vegan Protein Powder Organic protein blend (organic pea protein, organic brown rice prot

Topics: grams powder powders protein whey

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Liam Hemsworth is Geralt in the first Witcher season 4 trailer

theverge.com Andrew Webster 2025-10-02 14:30:29

Posts from this author will be added to your daily email digest and your homepage feed. It’s been a few years since Netflix confirmed that Liam Hemsworth would be taking over as Geralt of Rivia in the live-action Witcher series. And while we caught a brief glimpse of him in action last year, the first proper clip from season 4 of the show reveals just how Hemsworth will be inhabiting the role — including his take on Geralt’s signature growling voice. In addition to giving us a better look at G

Topics: confirmed geralt hemsworth netflix season

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The iPhone to get this year

theverge.com David Pierce 2025-10-03 01:00:00

is editor-at-large and Vergecast co-host with over a decade of experience covering consumer tech. Previously, at Protocol, The Wall Street Journal, and Wired. Posts from this author will be added to your daily email digest and your homepage feed. Hi, friends! Welcome to Installer No. 97, your guide to the best and Verge-iest stuff in the world. (If you’re new here, welcome, hope you’re having a good iPhone / back to school / it’s-finally-not-hot-anymore week, and also you can read all the old

Topics: best installer like new week

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Phone batteries are getting more compact, but the US is missing out

theverge.com Dominic Preston 2025-10-03 01:00:00

This is The Stepback, a weekly newsletter breaking down one essential story from the tech world. For more on phones and other tech outside the US, follow Dominic Preston. The Stepback arrives in our subscribers’ inboxes at 8AM ET. Opt in for The Stepback here. How it started Smartphone batteries are bigger than ever, while the phones themselves are shrinking. But whether you’re seeing the benefit — thin phones with big batteries — depends on where you live. The key is the introduction of sili

Topics: batteries battery carbon phones silicon

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The Helldivers community is coping with a spotlight it doesn’t want

theverge.com Terrence O'Brien 2025-10-03 04:00:00

“Yesterday was an interesting day for the Helldivers community.” That’s the very obvious understatement that announced the reopening of the Helldivers gaming subreddit in the small hours of Saturday morning. On Friday it was discovered that Tyler Robinson, arrested for the alleged killing of Charlie Kirk, had inscribed messages on the casings of several bullets found at the crime scene. One of those read “Hey fascist! Catch!” accompanied by an up arrow symbol, a right arrow, and three down arrow

Topics: community helldivers kirk media subreddit

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7 launchers you should use instead of Nova Launcher

androidauthority.com Unknown 2025-10-03 03:30:25

Andy Walker / Android Authority If you’ve been using Android phones as long as me, it’s impossible that you haven’t dabbled in Nova Launcher at some point. In fact, I’d say that Nova Launcher has been the go-to app for Android customization for well over a decade. It earned that well-deserved status by giving users more control than stock launchers ever could, from how icons looked to how gestures worked to how the app drawer was laid out. But all good things come to an end, and the development

Topics: android app launcher like nova

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Can Wear OS watches please adopt blood pressure monitoring now?

androidauthority.com Unknown 2025-10-03 04:00:02

Kaitlyn Cimino / Android Authority When Apple drops a new health feature, the ripple effect is rarely subtle. The company’s latest announcement that hypertension notifications are coming to the Apple Watch lineup is one of those moments. For years, smartwatches have toyed with the promise of more medical-grade metrics. My hope is that now, thanks to Apple, blood pressure monitoring is about to become mainstream. Are you interested in blood pressure monitoring on your Wear OS smartwatch? 13 vot

Topics: apple blood hypertension pressure watch

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A single, 'naked' black hole confounds theories of the young cosmos

news.ycombinator.com Charlie Wood 2025-10-02 22:27:12

A black hole unlike any seen before has been spotted in the early universe. It’s huge and appears to be essentially on its own, with few stars circling it. The object, which may represent a whole new class of enormous “naked” black holes, upends the textbook understanding of the young universe. “This is completely off the scale,” said Roberto Maiolino, an astrophysicist at the University of Cambridge who helped reveal the nature of the object in a preprint posted on August 29. “It’s terribly ex

Topics: black dots holes red universe

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Refurb Weekend: Silicon Graphics Indigo² Impact 10000

news.ycombinator.com View My Complete Profile 2025-10-02 23:42:38

My general vintage computing projects, mostly microcomputers, 6502, PalmOS, 68K/Power Mac and Unix workstations, but that's not all you'll see. While over the decades I've written for publications likeand, these articles are all original and just for you. My promise: No AI-generated article text, ever. All em-dashes are intentional and inserted by hand. Be kind, REWIND and PLAY.Old VCR is advertisement- and donation-funded, and what I get goes to maintaining the hardware here at Floodgap. I don'

Topics: 6502 68k advertisement ai article

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Premier League Soccer: Livestream Burnley vs. Liverpool From Anywhere

cnet.com See Full Bio 2025-10-03 04:00:04

Arne Slot's Liverpool will look to make it 12 points from four games on Sunday as the Reds take on a Burnley team still adjusting to life in the English Premier League. Below, we'll outline the best live TV streaming services for watching EPL games as they happen, wherever you are in the world, and how to use a VPN if it's not available where you are. The defending champs had a tough but fruitful August, with three wins from three, including a narrow 1-0 win over potential title rival Arsenal

Topics: burnley league liverpool streaming vpn

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Albania Appoints an AI as Government Official

futurism.com Unknown 2025-10-02 15:00:34

Albania has appointed the world's first-ever AI government official in hopes of rooting out some of the Balkan state's long-running corruption. As Politico Europe reports, the new AI minister — which should not be confused with a minister of AI, which a few countries already have, including Canada and the United Arab Emirates — has been dubbed "Diella," meaning "sunshine" in Albanian. Announced this week by Edi Rama, Albania's prime minster, Diella — which also serves as the avatar for e-Alban

Topics: ai albania diella government minister

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For the first time, iPhone 17 Pro truly feels deserving of the ‘Pro’ moniker

9to5mac.com Michael Burkhardt 2025-10-02 21:32:20

Apple introduced the Pro moniker for iPhones six years ago with the iPhone 11 lineup. However, with the iPhone 17 lineup in particular – it feels like Apple truly developed a professional iPhone for the first time. I’ll explain. ‘Pro’ is no longer just flashy First things first, this year’s iPhone 17 Pro is no longer the flashy model, unlike previous Pro iPhones. With this years switch from Titanium to Aluminum, the iPhone 17 Pro simply uses the same material as the standard iPhone 17 model.

Topics: 17 iphone like longer pro

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Kodak's mini camera fits on your keyring and is smaller than an AirPods case

engadget.com Unknown 2025-10-02 17:42:27

Kodak has shrunk a camera to fit onto a keyring, but it still manages to shoot both photo and video. It's hard not to compare the Kodak Charmera to the ubiquitous Labubu craze, considering the highly collectible nature of Reto Pro selling these officially licensed mini cameras as a single blind box for $29.99 or a full set of six for $179.94. The keyring cameras, which only weigh 30 grams, are already sold out on the Reto Pro website, but are expected to be restocked. The blind box can be unwra

Topics: camera charmera images keyring kodak

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EFF to court: The Supreme Court must rein in secondary copyright liability

news.ycombinator.com Betty Gedlu 2025-10-02 22:59:27

If the Supreme Court doesn’t reverse a lower court’s ruling, internet service providers (ISPs) could be forced to terminate people’s internet access based on nothing more than mere accusations of copyright infringement. This would threaten innocent users who rely on broadband for essential aspects of daily life. EFF—along with the American Library Association, the Association of Research Libraries, and Re:Create—filed an amicus brief urging the Court to reverse the decision. The Stakes: Turning

Topics: access copyright court infringement internet

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Four-year wedding crasher mystery solved

news.ycombinator.com Unknown 2025-10-02 13:52:33

A baffled bride has solved the mystery of the awkward-looking stranger who crashed her wedding four years ago. Michelle Wylie and her husband, John, registered the presence of their unidentifiable guest only as they looked through photographs of their wedding in the days after the happy occasion. Who was the tall man in a dark suit, distinguished by the look of quiet mortification on his face? But their family and friends could offer no explanation, nor could hotel staff at the Carlton hotel i

Topics: hillhouse michelle newsletter wedding wylie

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Visual programming is stuck on the form

news.ycombinator.com Wil Chung 2025-10-03 00:53:31

Underlying great creations that you love—be it music, art, or technology—its form (what it looks like) is driven by an underpinning internal logic (how it works). I noticed this pattern while watching a talk on cellular automaton and realized it's "form follows function" paraphrased from a slightly different angle. Inventing a form is a hard task, so you must approach it obliquely—by first illuminating the underlying function. This made me realize something crucial about visual programming: it’

Topics: form function programming underlying visual

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Adding OR logic forced us to confront why users preferred raw SQL

news.ycombinator.com Unknown 2025-09-29 12:00:16

Where This Story Begins In 2022, we had three different query interfaces. Logs had a custom search syntax with no autocomplete. Traces only had predefined filters - no query builder at all. Metrics had a raw PromQL input box where you'd paste queries from somewhere else and hope they worked. Each system spoke a different language. An engineer debugging a production issue had to context-switch not just between data types, but between entirely different mental models of how to query data. When

Topics: builder logs query traces users

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Lexy: A parser combinator library for C++17

news.ycombinator.com Unknown 2025-09-29 13:05:45

Why should I use lexy over XYZ? lexy is closest to other PEG parsers. However, they usually do more implicit backtracking, which can hurt performance and you need to be very careful with rules that have side-effects. This is not the case for lexy, where backtracking is controlled using branch conditions. lexy also gives you a lot of control over error reporting, supports error recovery, special support for operator precedence parsing, and other advanced features. Boost.Spirit The main differenc

Topics: boost error json lexy parser

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Will AI be the basis of many future industrial fortunes, or a net loser?

news.ycombinator.com Jerry Neumann 2025-10-02 21:01:35

Fortunes are made by entrepreneurs and investors when revolutionary technologies enable waves of innovative, investable companies. Think of the railroad, the Bessemer process, electric power, the internal combustion engine, or the microprocessor—each of which, like a stray spark in a fireworks factory, set off decades of follow-on innovations, permeated every part of society, and catapulted a new set of inventors and investors into power, influence, and wealth. Yet some technological innovation

Topics: ai companies containerization like new

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Myocardial infarction may be an infectious disease

news.ycombinator.com Unknown 2025-10-02 20:55:42

According to the recently published research, an infection may trigger myocardial infarction. Using a range of advanced methodologies, the research found that, in coronary artery disease, atherosclerotic plaques containing cholesterol may harbour a gelatinous, asymptomatic biofilm formed by bacteria over years or even decades. Dormant bacteria within the biofilm remain shielded from both the patient’s immune system and antibiotics because they cannot penetrate the biofilm matrix. A viral infect

Topics: bacteria biofilm infarction myocardial research

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Latest Tech News

Observable Notebooks Data Loaders

EPA Seeks to Eliminate Critical PFAS Drinking Water Protections

Writing an operating system kernel from scratch

Get Your Wig and Sword Ready, ‘The Witcher’ Returns in October

Today's NYT Mini Crossword Answers for Sunday, Sept. 14

Apple TV Plus: The 14 Best Sci-Fi TV Shows You Should Stream Now

How Advanced Ocean Exploration Is Rewriting History

All the Apple Watch Ultra 3 Changes: More Battery Life, Satellite Texting, 5G and More

The Quest to Find the Longest-Running Simple Computer Program

Hypershell Pro X Series Review: An Exoskeleton You Can Actually Buy

11 Best Protein Powders, According to Years of Testing (2025)

Liam Hemsworth is Geralt in the first Witcher season 4 trailer

The iPhone to get this year

Phone batteries are getting more compact, but the US is missing out

The Helldivers community is coping with a spotlight it doesn’t want

7 launchers you should use instead of Nova Launcher

Can Wear OS watches please adopt blood pressure monitoring now?

A single, 'naked' black hole confounds theories of the young cosmos

Refurb Weekend: Silicon Graphics Indigo² Impact 10000

Premier League Soccer: Livestream Burnley vs. Liverpool From Anywhere

Albania Appoints an AI as Government Official

For the first time, iPhone 17 Pro truly feels deserving of the ‘Pro’ moniker

Kodak's mini camera fits on your keyring and is smaller than an AirPods case

EFF to court: The Supreme Court must rein in secondary copyright liability

Four-year wedding crasher mystery solved

Visual programming is stuck on the form

Adding OR logic forced us to confront why users preferred raw SQL

Lexy: A parser combinator library for C++17

Will AI be the basis of many future industrial fortunes, or a net loser?

Myocardial infarction may be an infectious disease

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