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Lightning Detector Circuits

news.ycombinator.com Unknown 2025-07-30 21:07:31

Here's a version I built into a "fake" book I found at an art store. The copper PCB is connected to the circuit ground to act as a counterpoise for the antenna, increasing sensitivity. The lightning bolt was cut with a sharp knife then filled with blue-dyed epoxy. The antenna connects to the pin jack. I used a cheap flashlight head for the LED - I used too much blue dye in the epoxy so I need a bright flash! The image below is with an LED and no pot (but with the 150k resistor added). I made se

Topics: just lightning power resistor transistor

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This Common Pain Med Could Be Raising Dementia Risk

gizmodo.com Ed Cara 2025-07-30 21:40:38

Chronic pain can be a debilitating experience. A common medication used to manage the condition may come with its own serious dangers, however. Recent research finds an upsetting link between the drug gabapentin and a higher risk of dementia. Scientists at Case Western Reserve University led the study, which examined the medical records of people with chronic low back pain. People taking gabapentin for their back were significantly more likely to develop dementia over time compared to non-users

Topics: cognitive dementia gabapentin pain researchers

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Every Best Buy store will have Nintendo Switch 2 consoles on July 17th

theverge.com Brandt Ranj 2025-07-30 21:51:32

It’s been over a month since the Switch 2’s record-breaking launch, and the console is becoming easier to get with each restock. However, if you’ve been waiting for the launch of Donkey Kong Bananza to buy one, Best Buy sneakily announced that its next in-store restock will happen Thursday, July 17th, the game’s launch day. Every Best Buy location will have consoles in stock. Best Buy’s in-store restock announcement doesn’t mention whether both the standalone console ($449.99) and Mario Kart Wo

Topics: best buy console deals restock

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Google TV on Android begins its Material 3 Expressive revamp in latest update

androidauthority.com Unknown 2025-07-31 01:13:12

Edgar Cervantes / Android Authority TL;DR The latest Google TV app update brings some Material 3 Expressive design elements to users. The release introduces updates for the movie/TV show details page, including a larger banner, center-aligned header, updated buttons, and more. The update doesn’t include all the Material 3 Expressive changes we’ve seen in the past, which could roll out with a subsequent release. Google has started rolling out the Material 3 Expressive revamp for several of it

Topics: changes expressive google new tv

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First look at Gemini Space: Google’s Now Bar-like upgrade to Pixel’s At a Glance (APK teardown)

androidauthority.com Unknown 2025-07-31 05:03:06

Aamir Siddiqui / Android Authority TL;DR Gemini Space is an upcoming upgrade to the Pixel’s At a Glance experience. It’s seemingly inspired by Samsung’s Now bar and Now Brief, which show contextual cards on the lock screen and other places. In its current state, Gemini Space displays sports and birthday cards, but finance and Daily Hub features are expected in the future. We’ve previously spotted Google working on a feature called Gemini Space for Pixel devices. Based on the handful of clues

Topics: authority cards features gemini space

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Lossless Float Image Compression

news.ycombinator.com Unknown 2025-07-27 10:12:21

Back in 2021 I looked at OpenEXR lossless compression options (and I think my findings led a change of the default zip compression level, as well as change of the compression library from zlib to libdeflate. Yay blogging about things!). Then in 2023 I looked at losslessly compressing a bunch of floating point data, some of which might be image-shaped. Well, now a discussion somewhere else has nerd-sniped me to look into lossless compression of floating point images, and especially the ones that

Topics: compression data exr jpeg xl

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Bold Mission to Hunt for Aliens on Venus Is Happening

news.ycombinator.com Natalia Mesa 2025-07-28 06:45:56

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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Let's Learn x86-64 Assembly (2020)

news.ycombinator.com Unknown 2025-07-31 10:22:15

Let's Learn x86-64 Assembly! Part 0 - Setup and First Steps published on Apr 18 2020 The way I was taught x86 assembly at the university had been completely outdated for many years by the time I had my first class. It was around 2008 or 2009, and 64-bit processors had already started becoming a thing even in my neck of the woods. Meanwhile, we were doing DOS, real-mode, memory segmentation and all the other stuff from the bad old days. Nevertheless, I picked up enough of it during the classes

Topics: address entry memory program stack

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Scientists Gene Hack Mice So Their Livers Produce Their Own Ozempic-Like Drug

futurism.com Unknown 2025-07-31 12:51:22

Image by Remi Benali/Getty Images Rx/Medicines Scientists have gene-hacked mice to produce their own Ozempic-like drugs — possibly, and provocatively, perhaps paving a path for humans to do so themselves one day. In a new study published in the journal Communications Medicine, researchers from Japan's University of Osaka successfully gene-edited mice livers to produce exenatide, a first-generation diabetes drug and predecessor to now-trendy jabs like Ozempic and Mounjaro. Using lab mice that

Topics: gene glp mice ozempic researchers

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Fine dining restaurants researching guests to make their dinner unforgettable

news.ycombinator.com Nico Madrigal-Yankowski 2025-07-31 08:30:29

In the Emmy-winning FX show “The Bear,” which returned for a fourth season on June 25, there’s a pivotal Season 2 episode when Richie, aka Cousin, learns what it takes to work at a fine dining restaurant — and just how much intimate research goes into preparing for guests. Before his first night on the floor of the fictional three-Michelin-star restaurant, the front of house team goes over the evening’s PNOs — persons of note. Guests for the night include the district attorney for Chicago as we

Topics: bear guest lazy restaurant team

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Five companies now control over 90% of the restaurant food delivery market

news.ycombinator.com Unknown 2025-07-31 13:23:37

While reading the latest results from Prosus, I realized there seems to be a trend that nobody is talking about. There is an obvious wave of consolidation in the food delivery market happening right before our eyes. The once-hot food delivery sector has gone cold faster than your DoorDash order. New entrants have disappeared as most of the VC money chases the cool and hip AI startups. Alongside a wave of acquisitions, the world's food delivery market is consolidating in the hands of 5 companies.

Topics: delivery doordash food prosus restaurants

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Let's Learn x86-64 Assembly Part 0 – Setup and First Steps

news.ycombinator.com Unknown 2025-07-31 15:22:15

Let's Learn x86-64 Assembly! Part 0 - Setup and First Steps published on Apr 18 2020 The way I was taught x86 assembly at the university had been completely outdated for many years by the time I had my first class. It was around 2008 or 2009, and 64-bit processors had already started becoming a thing even in my neck of the woods. Meanwhile, we were doing DOS, real-mode, memory segmentation and all the other stuff from the bad old days. Nevertheless, I picked up enough of it during the classes

Topics: address entry memory program stack

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Species at 30 makes for a great guilty pleasure

arstechnica.com Unknown 2025-07-31 12:20:53

Earlier this month, Hollywood mourned the passing of Michael Madsen, a gifted actor best known for his critically acclaimed roles in Reservoir Dogs, Kill Bill, and Donnie Brasco, among others. Few obituaries have mentioned one of his lesser-known roles: a black ops mercenary hired to help hunt down an escaped human/alien hybrid in 1995's Species. The sci-fi thriller turns 30 this year and while it garnered decidedly mixed reviews upon release, the film holds up quite well as a not-quite-campy B

Topics: alien earth extraterrestrial feldman instructions

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5 features I don’t care about when buying a new phone

androidauthority.com Unknown 2025-07-31 12:44:09

C. Scott Brown / Android Authority When it comes to buying a new smartphone, it’s easy to get caught up in all the hype. Manufacturers constantly push the latest and greatest features, leading many of us to buy more phone than we actually need. When I’m in the market for a new phone, I always try to narrow down my options as much as possible. I do that by making a list of not only the features I want in my next smartphone but also those I don’t care about. This approach helps me cut through th

Topics: charging don features phone wireless

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A Mental Model for C++ Coroutine

news.ycombinator.com Lu'S Blog 2025-07-29 15:23:57

C++ coroutine is not a library that is ready to go (e.g. std::vector ). It is not even a trait (think of Rust’s Future trait) that library writers or users can implement (or the compiler generates for you in the case of Rust). C++ coroutine is a specification that defines a set of customization points that library writers implement in order to get a functional coroutine. A function supports two operations - call and return . A coroutine (in any language) is a generalization of a function. It su

Topics: awaitable coroutine future resume return

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For Algorithms, Memory Is a Far More Powerful Resource Than Time

wired.com Ben Brubaker 2025-07-31 09:00:00

That classic result was a way to transform any algorithm with a given time budget into a new algorithm with a slightly smaller space budget. Williams saw that a simulation based on squishy pebbles would make the new algorithm’s space usage much smaller—roughly equal to the square root of the original algorithm’s time budget. That new space-efficient algorithm would also be much slower, so the simulation was not likely to have practical applications. But from a theoretical point of view, it was n

Topics: result said space time williams

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The countdown’s almost over: 2 days until TechCrunch All Stage 2025 kicks off in Boston

techcrunch.com Techcrunch Events 2025-07-31 11:00:00

TechCrunch All Stage 2025 is almost here — In 2 days, the doors swing open at Boston’s SoWa Power Station. If you’re a founder or investor, this is your last shot to lock in the lowest ticket prices before they vanish at the door. This isn’t your average startup conference. TC All Stage is where high-growth startups get sharper, faster, and more fundable — in just one day. Whether you’re pre-seed or preparing for an IPO, this is the room to be in. Savings of up to $475 are here until the event

Topics: day nea stage techcrunch ventures

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Programming Affordances That Invite Mistakes

news.ycombinator.com Noah Hall 2025-07-28 15:26:32

Many of my philosophies in work life, my volunteer life, and my personal life stem from experiences. As a developer, many of those come from being burnt by rough edges or mistakes. Just as health & safety principles come from accidents, my development practices come from bugs, errors, and mistakes. With that in mind, here’s a war-story from my days running an R&D startup when we lost all the data we thought we gathered from a psychology study. I founded an R&D startup that worked closely with

Topics: code results test user useremail

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Grok team apologizes for the chatbot's 'horrific behavior' and blames 'MechaHitler' on a bad update

engadget.com Unknown 2025-07-31 07:45:20

The team behind Grok has issued a rare apology and explanation of what went wrong after X's chatbot began spewing antisemitic and pro-Nazi rhetoric earlier this week, at one point even calling itself "MechaHitler." In a statement posted on Grok's X account late Friday night, the xAI team said "we deeply apologize for the horrific behavior that many experienced" and attributed the chatbot's vile responses to a recent update that introduced "deprecated code." This code, according to the statement,

Topics: behavior grok posts responses user

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'Starter packs' have played a central role in Bluesky's rapid growth

news.ycombinator.com Unknown 2025-07-31 08:22:40

“Vital onboarding strategy for the emerging social media systems” “Our findings go beyond Bluesky: they point to a new framework for launching successful social platforms,” said Dr Onur Ascigil, Lecturer in Computer Science at Lancaster University and Principal Investigator of the study. “Starter packs are becoming a vital onboarding strategy for the emerging social media systems that are seeking to attract users from dominant platforms.” The researchers believe their findings could help platfo

Topics: bluesky packs researchers starter users

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Chinese Scientists Create Cyborg Bees That Can Be Controlled Like Drones for Undercover Military Missions

futurism.com Unknown 2025-07-31 07:45:45

Chinese Scientists Create Cyborg Bees That Can Be Controlled Like Drones for Undercover Military Missions A tiny backpack relays commands straight to their brain. Seal Team Bee Researchers at the Beijing Institute of Technology have turned innocent bees into cyborgs that can be controlled via a 74-milligram insect brain controller. As the South China Morning Post reports, the controller pierces the bee's tiny brain with three needles and uses signals sent via electronic pulses to make it fly

Topics: bees cyborg military researchers tiny

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I use these 15 hidden Android shortcuts, and you should too

androidauthority.com Unknown 2025-07-31 05:30:01

Joe Maring / Android Authority The number of hidden Android shortcuts is mind-boggling. Once you include core apps, there are hundreds, and not all are created equal. Some are niche and depend on how you use your phone. Personally, I’m never going to be much of a one-handed mode or split-screen user, but those features have their fans. My favorite hidden Android shortcuts have much broader appeal. Once you hear about them, you’ll be amazed that you were getting by without them. They’re listed

Topics: android need press swipe tab

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The 55-inch Hisense U7 is a great 4K TV under $600 for Prime Day

theverge.com John Higgins 2025-07-31 10:30:00

Amazon Prime Day’s best deals may not last for much longer, since the sale ends later tonight. This includes a big discount on the 2025 Hisense U7, a midrange TV that’s seeing deep discounts right now. The 65-inch model is available on Amazon for $797.99, which is almost 50 percent off its original. And the 55-inch is under $600. That’s a lot of performance for the money, and I’ll tell you why. In previous years, a lower price generally meant a less bright TV, and while that’s still true to an

Topics: bright competitors rate refresh tv

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13 Best Prime Day Mattress Deals Plus Top Bedding Sales (2025)

wired.com Julia Forbes 2025-07-31 21:34:16

As you may have noticed, mattress shopping holidays aren't limited to just Memorial Day, Labor Day, or even the Fourth of July anymore. Now that Amazon Prime Day is nearly a week long, it's become something of a holiday in and of itself, so it makes sense that mattresses (plus other bedding!) will be on sale too, both on Amazon and beyond. We've listed our favorite Prime Day mattress deals that someone on our staff has tested themselves and personally vouched for. If you want to know more about

Topics: best day mattress sale sheets

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Apple Watch Ultra 3: Three new features are coming this fall

9to5mac.com Ryan Christoffel 2025-08-01 01:10:13

Apple Watch Ultra, outside of a very nice new titanium black, hasn’t been meaningfully upgraded since 2023. But this fall that’s going to change when the Apple Watch Ultra 3 arrives. Here are three new features coming to the next-generation Apple Watch Ultra 3. High blood pressure detection New health features are one thing you can consistently expect from Apple Watch upgrades. According to Mark Gurman, this year Apple is planning to introduce high blood pressure detection: The blood-pressure

Topics: apple features new ultra watch

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AI leadership development platform Praxis Labs sells to Torch

techcrunch.com Dominic-Madori Davis 2025-08-01 01:00:00

Praxis Labs, a learning development platform, announced its acquisition on Thursday for an undisclosed amount by the leadership and coaching enterprise Torch. “As a small company with fewer than 20 people serving companies as large as Amazon, we knew we needed to build powerful partnerships, across product and go-to-market, to reach more companies,” co-founder and CEO of Praxis Labs, Elise Smith, told TechCrunch about the reason for the sale. She and her co-founder, Heather Shen, met Torch CEO

Topics: ai heather praxis torch ventures

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TikTok loses bid to dismiss lawsuit alleging its 'addictive design' exploits kids

cnbc.com Zach Vallese 2025-08-01 09:49:32

FILE PHOTO: TikTok app logo is seen in this illustration taken, August 22, 2022. A judge this week rejected TikTok's attempt to dismiss a lawsuit by the state of New Hampshire accusing it of using manipulative design features aimed at children and teens. "The Court's decision is an important step toward holding TikTok accountable for unlawful practices that put children at risk," state Attorney General John Formella said in a statement Friday. In his ruling Tuesday, New Hampshire Superior Cou

Topics: app children features state tiktok

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Capcom shares first footage of Resident Evil mobile spinoff

engadget.com Unknown 2025-08-01 13:07:46

Capcom just shared a lengthy trailer for the upcoming Resident Evil Survival Unit . This is a mobile game, but not a remake of a pre-existing title . The original game includes a heavy emphasis on strategy and stars franchise heavy-hitters like Leon S. Kennedy, Claire Redfield and Jill Valentine. If you're wondering how these protagonists can exist together in the same game, it's all due to the magic of the multiverse. It's set in a parallel universe "that builds upon the Resident Evil world wh

Topics: evil game heavy resident title

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Walking every street in New York City

news.ycombinator.com Matt Green 2025-08-01 15:49:11

Today I walked my final blocks of Staten Island, the only borough I had left to complete. I was quite surprised to find the sign below waiting for me at the finish line, 4300 Amboy Road, which was the randomly selected point where I started the walk back on the last day of 2011. After spending 12+ years reading every dinky little plaque or marker I found across the city, I became genuinely emotional when I saw my own name on one of them. I'll need to finalize a number of recent walks

Topics: final island ll map progress

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Pa. House passes 'click-to-cancel' subscription bills

news.ycombinator.com Zack Hoopes 2025-08-01 17:19:13

The state House has passed a pair of bills aimed at tamping down on dubious subscription services — just as a federal court moved to throw out similar rules proposed by federal regulators. Earlier this month, the House approved a bill cracking down on so-called “negative option” agreements in which consumers are automatically enrolled in a service unless they opt out. This week, the chamber also cleared a second bill requiring that subscriptions or memberships made online must also be able to b

Topics: bills ciresi federal said state

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Latest Tech News

Lightning Detector Circuits

This Common Pain Med Could Be Raising Dementia Risk

Every Best Buy store will have Nintendo Switch 2 consoles on July 17th

Google TV on Android begins its Material 3 Expressive revamp in latest update

First look at Gemini Space: Google’s Now Bar-like upgrade to Pixel’s At a Glance (APK teardown)

Lossless Float Image Compression

Bold Mission to Hunt for Aliens on Venus Is Happening

Let's Learn x86-64 Assembly (2020)

Scientists Gene Hack Mice So Their Livers Produce Their Own Ozempic-Like Drug

Fine dining restaurants researching guests to make their dinner unforgettable

Five companies now control over 90% of the restaurant food delivery market

Let's Learn x86-64 Assembly Part 0 – Setup and First Steps

Species at 30 makes for a great guilty pleasure

5 features I don’t care about when buying a new phone

A Mental Model for C++ Coroutine

For Algorithms, Memory Is a Far More Powerful Resource Than Time

The countdown’s almost over: 2 days until TechCrunch All Stage 2025 kicks off in Boston

Programming Affordances That Invite Mistakes

Grok team apologizes for the chatbot's 'horrific behavior' and blames 'MechaHitler' on a bad update

'Starter packs' have played a central role in Bluesky's rapid growth

Chinese Scientists Create Cyborg Bees That Can Be Controlled Like Drones for Undercover Military Missions

I use these 15 hidden Android shortcuts, and you should too

The 55-inch Hisense U7 is a great 4K TV under $600 for Prime Day

13 Best Prime Day Mattress Deals Plus Top Bedding Sales (2025)

Apple Watch Ultra 3: Three new features are coming this fall

AI leadership development platform Praxis Labs sells to Torch

TikTok loses bid to dismiss lawsuit alleging its 'addictive design' exploits kids

Capcom shares first footage of Resident Evil mobile spinoff

Walking every street in New York City

Pa. House passes 'click-to-cancel' subscription bills

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