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These Chunks of Ice Move All By Themselves, Thanks to a Cool Engineering Trick

gizmodo.com Margherita Bassi 2025-11-23 06:20:54

It looks like something straight out of a Ouija board horror movie, but frosty—researchers have figured out how to make ice move by itself. A video capturing the creepy dynamic features an ice disk melting on a metal surface etched with an asymmetrical herringbone pattern. The ice and its small puddle slowly start to move sideways before suddenly picking up speed and slingshotting across the metal plate. The researchers suggest that this sort of independent movement could one day generate power

Topics: disk ice meltwater researchers surface

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The Biggest Winners of China’s World Humanoid Robot Games

gizmodo.com Bruce Gil 2025-11-23 06:35:46

China just hosted the first-ever World Humanoid Robot Games—basically the Olympics, but for robots. The three-day event kicked off Thursday, August 14, inside Beijing’s 12,000-seat National Speed Skating Oval, a venue originally built for the 2022 Winter Olympics. Over 200 teams from 16 countries including Japan, Brazil, Germany, and the U.S., competed across 26 competitions. The contests ranged from classic track-and-field events and gymnastics to kickboxing, soccer, medicine sorting, and even

Topics: humanoid including meter robot robotics

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Picking a Spot for NASA’s Lunar Nuclear Reactor Is Trickier Than It Sounds

gizmodo.com Clive Neal 2025-11-23 06:36:22

In a bold, strategic move for the U.S., acting NASA Administrator Sean Duffy announced plans on Aug. 5, 2025, to build a nuclear fission reactor for deployment on the lunar surface in 2030. Doing so would allow the United States to gain a foothold on the Moon by the time China plans to land the first taikonaut, what China calls its astronauts, there by 2030. Apart from the geopolitical importance, there are other reasons why this move is critically important. A source of nuclear energy will be

Topics: landing lunar moon nasa reactor

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How the head of Obsidian went from superfan to CEO

theverge.com Casey Newton 2025-11-23 06:40:21

Welcome to Decoder! This is Casey Newton, founder and editor of Platformer and cohost of the Hard Fork podcast. I’ve had a lot of fun guest-hosting a few episodes of Decoder while Nilay is out on parental leave this summer. If you listened to the last couple of Monday shows, you know I’ve been doing a series with founders who are focused on productivity. This is my third and, sadly, last time joining the show during the break, but I’m very excited about this episode. Today I’m talking with Step

Topics: just like lot obsidian people

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Why Paradigm built a spreadsheet with an AI agent in every cell

techcrunch.com Rebecca Szkutak 2025-11-23 06:00:55

Anna Monaco has been building AI agents since before the term “AI agents” was even a thing. After building numerous chatbots, she started looking for other types of interfaces that made sense for AI agents and landed on spreadsheets. “I had this personal pattern, and I noticed that a lot of other people had this pattern, of putting very important CRM data in spreadsheets just because it was the most flexible thing,” Monaco told TechCrunch. “But it was actually a pain to maintain. There’s so muc

Topics: ai just monaco paradigm said

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5 reasons to switch to an immutable Linux distro today - and which to try first

zdnet.com Jack Wallen 2025-11-23 11:06:00

Jack Wallen / Elyse Betters Picaro / ZDNET ZDNET's key takeaways Immutable Linux distributions are the future. There are several reasons why immutable is the way to go. From security to predictability, you can't go wrong with immutable. Get more in-depth ZDNET tech coverage: Add us as a preferred Google source on Chrome and Chromium browsers. Immutable Linux distributions sound complicated, right? You'd be surprised to know that it's actually quite simple. Essentially, an immutable distri

Topics: distributions immutable linux reliable updates

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Patients trust AI's medical advice over doctors - even when it's wrong, study finds

zdnet.com Tiernan Ray 2025-11-23 11:33:00

TEK IMAGE/SCIENCE PHOTO LIBRARY / Science Photo Library via Getty Images ZDNET's key takeaways People can't tell AI-generated from doctor responses. However, people trust AI responses more than those from doctors. Integrating AI into clinical practice must be a nuanced approach. Get more in-depth ZDNET tech coverage: Add us as a preferred Google source on Chrome and Chromium browsers. There's a crisis due to a lack of doctors in the US. In the October issue of the prestigious New England J

Topics: advice ai doctors medical responses

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Linktree goes dark in India — and the company isn’t sure why

techcrunch.com Jagmeet Singh 2025-11-23 11:46:17

Linktree, the popular link-in-bio service used by millions of creators and businesses, has been inaccessible in India for several days — and its sudden disappearance from the Indian web remains a mystery, even to the Australian startup itself. Over the past week, Linktree has been inaccessible in India, with a few users raising the issue on X. Initially, TechCrunch noticed that the site briefly displayed a message suggesting it had been blocked by the Indian government. Later, this was replaced

Topics: india indian linktree million startup

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A Nintendo Direct focused on Kirby Air Riders is set for August 19

engadget.com Unknown 2025-11-23 16:43:55

Nintendo has a few major first-party Nintendo Switch 2 games lined up for the rest of the year. One of those is Kirby Air Riders , a sequel to the 2003 GameCube title Kirby Air Ride. The company is set to reveal much (much) more about what it has in store for the new game, as it has lined up a dedicated Nintendo Direct. You'll be able to watch the showcase, which was first announced via the Nintendo Today! app , at 9AM ET on August 19. You won't have to go hunting for it on Nintendo's channel ei

Topics: air direct game kirby nintendo

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I replaced my MacBook charger with this compact wall unit - and wish I'd done it sooner

zdnet.com Adrian Kingsley-Hughes 2025-11-23 16:52:00

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Topics: content does editorial reviews zdnet

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Grammarly gets a design overhaul, multiple AI features

techcrunch.com Ivan Mehta 2025-11-23 16:00:00

Grammarly now has a new document-based interface, built on the back of Coda, the productivity startup it acquired last year. The interface also sports an AI assistant, as well as a few AI tools meant for students and professionals, including an AI grader, proofreader and citation finder. The new interface adopts a block-first approach, letting you insert tables, columns, separators, lists and headers. You can also add rich text blocks to highlight information, add tips, or alerts. A sidebar ho

Topics: ai disrupt generated grammarly techcrunch

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The circular economy could make demolition a thing of the past

news.ycombinator.com José Manuel Cabrero 2025-11-23 20:42:31

Most of us are already quite comfortable recycling our household waste. In Spain, for instance, millions of tonnes of packaging are processed every year, but did you know that buildings and their materials can also be recycled, or that an entire building could be completely dismantled and reassembled? Formula 1, often a laboratory for innovation, offers us a real-world example of this in the form of the Red Bull team’s “pit box”, known as the F1Holzhaus – literally, “the wooden house”. It made

Topics: building construction materials waste year

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LLMs and coding agents are a security nightmare

news.ycombinator.com Gary Marcus 2025-11-23 20:04:34

Last October, I wrote an essay called “When it comes to security, LLMs are like Swiss cheese — and that’s going to cause huge problems” warning that “The more people use LLMs, the more trouble we are going to be in”. Until last week, when I went to Black Hat Las Vegas, I had no earthly idea how serious the problems were. There, I got to know Nathan Hamiel, a Senior Director of Research at Kudelski Security and the AI, ML, and Data Science track lead for Black Hat, and also sat in on a talk by tw

Topics: agents code coding llm malicious

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The best gadgets and apps in August (so far)

theverge.com Barbara Krasnoff 2025-11-23 21:00:41

is a reviews editor who manages how-tos and various projects. She’s worked as an editor and writer (and occasional sci-fi author) for more years than she cares to admit to. During the last half month, we’ve covered a lot of interesting gadgets and apps and thought we’d highlight a few that caught our attention the most. For example, we have a robovac that can mop the edges of your walls (something that my manual mop usually fails at), a charging cable that with any luck will last a good long ti

Topics: ai deals dia smart usb

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Obsidian is too much for me, so I switched to this free alternative

androidauthority.com Unknown 2025-11-24 08:00:36

Tushar Mehta / Android Authority I take a LOT of notes, and in pursuit of the most promising solution, I have tried note-taking apps such as Evernote and OneNote, dabbled with celebrated knowledge management systems like Notion, and even tried to wrap my head around the infinite possibilities of Obsidian. But the overwhelming number of entry fields in these apps has prevented me from relying on them consistently. Time and again, I have found myself returning to simpler remedies, such as Google

Topics: app like logseq notes obsidian

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iOS 26 tweaks iPhone Always On Display in a way you might not like

9to5mac.com Zac Hall 2025-11-23 20:52:32

Apple’s Always On Display has been fairly consistent since it debuted on iPhone 14 Pro. With iOS 26, Apple has quietly changed how it works in a way that may not be obvious. Always On Display modes Instead of simply dimming your Lock Screen wallpaper, the system now blurs it by default. The tweak makes the clock and widgets stand out more, but it also defeats the purpose of displaying a photo if that’s what you like about the feature. Luckily, there’s also a toggle to bring back the original b

Topics: display ios like lock screen

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I dialed these 14 secret codes to unlock hidden features on my Android and iPhone

zdnet.com Elyse Betters Picaro 2025-11-24 06:00:19

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Topics: content does editorial reviews zdnet

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The best cheap smartwatches of 2025: Expert tested and reviewed

zdnet.com Matthew Miller 2025-11-24 06:30:20

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Topics: content does editorial reviews zdnet

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LLMs and Coding Agents = Security Nightmare

news.ycombinator.com Gary Marcus 2025-11-24 08:04:34

Last October, I wrote an essay called “When it comes to security, LLMs are like Swiss cheese — and that’s going to cause huge problems” warning that “The more people use LLMs, the more trouble we are going to be in”. Until last week, when I went to Black Hat Las Vegas, I had no earthly idea how serious the problems were. There, I got to know Nathan Hamiel, a Senior Director of Research at Kudelski Security and the AI, ML, and Data Science track lead for Black Hat, and also sat in on a talk by tw

Topics: agents code coding llm malicious

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A short statistical reasoning test

news.ycombinator.com Unknown 2025-11-24 02:55:55

The second – likelihoodist – is to create a profile likelihood and take the $q$ quantile. I personally find this approach more intuitive in general because it is contextually picking model parameters, rather than to directly making claims about degrees of belief: we are just trying to pick $p$ such that it captures the first 5% of the likelihood sum of our binomial model. There are at least two general – from first principles – approaches to calculate a lower bound fraction without knowing

Topics: beta count distribution ks number

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Walkie-Textie Wireless Communicator

news.ycombinator.com Unknown 2025-11-21 23:08:45

Walkie-Textie Wireless Communicator The Walkie-Textie is a simple handheld device with a 12-key keypad and OLED display that allows you to send and receive text messages using the LoRa wireless protocol. It's ideal for situations where there's no mobile signal, such as when you're camping or hiking in a remote area, when you don't want the cost of a mobile network, or for children to have fun without running up a bill: The Walkie-Textie is a handheld device that allows you to send text message

Topics: display key lora textie walkie

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Ars Technica System Guide: Four sample PC builds, from $500 to $5,000

arstechnica.com Unknown 2025-11-24 08:00:25

Sometimes I go longer than I intend without writing an updated version of our PC building guide. And while I could just claim to be too busy to spend hours on Newegg or Amazon or other sites digging through dozens of near-identical parts, the lack of updates usually correlates with "times when building a desktop PC is actually a pain in the ass." Through most of 2025, fluctuating and inflated graphics card pricing and limited availability have once again conspired to make a normally fun hobby a

Topics: building just parts pc pricing

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WIRED Takes You Back to School

wired.com Luke Larsen 2025-11-24 06:00:00

Young people entering classrooms this fall need a totally different tool set than the generations before them.

Topics: classrooms different entering fall generations

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The Tweens Down Under: Life Without Social Media in Australia

wired.com Charley Locke 2025-11-24 06:00:00

Starting on December 10, many Australian teenagers will no longer be as online as their peers in other countries. The Social Media Minimum Age Bill, passed in 2024, stipulates that a person must be at least 16 years old to have an account on platforms like Instagram, TikTok, Snapchat, and YouTube. Across the world, people young and old are increasingly recognizing the negative impacts that social media has on adolescents. Nearly half of teenagers in the US claim these platforms harm people thei

Topics: ban media people social young

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Leeches and the Legitimizing of Folk-Medicine

news.ycombinator.com Unknown 2025-11-19 23:29:55

‍ “Men would rather pop Viagra forever than let a leech near their body,” Dr. Andrei Dokukin says with only a hint of hyperbole. From his Long Beach, California, clinic, Dokukin is one of the only medical doctors in America practicing leech therapy (also known as hirudotherapy) for internal medicine and non-surgical conditions. While his clients are treated for chronic pain, arthritis, and circulatory issues, rather than erectile dysfunction, Dokukin notes that ED could, in fact, be successfull

Topics: blood hirudin leech leeches therapy

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A Visual Exploration of Gaussian Processes (2019)

news.ycombinator.com Görtler 2025-11-22 00:21:43

Even if you have spent some time reading about machine learning, chances are that you have never heard of Gaussian processes. And if you have, rehearsing the basics is always a good way to refresh your memory. With this blog post we want to give an introduction to Gaussian processes and make the mathematical intuition behind them more approachable. Gaussian processes are a powerful tool in the machine learning toolbox . They allow us to make predictions about our data by incorporating prior kno

Topics: distribution gaussian kernel points processes

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We Hit 100% GPU Utilization–and Then Made It 3× Faster by Not Using It

news.ycombinator.com Unknown 2025-11-19 10:31:05

We recently used Qwen3-Embedding-0.6B to embed millions of text documents while sustaining near-100% GPU utilization the whole way. That’s usually the gold standard that machine learning engineers aim for… but here’s the twist: in the time it took to write this blog post, we found a way to make the same workload 3× faster, and it didn’t involve maxing out GPU utilization at all. That story’s for another post, but first, here’s the recipe that got us to near-100%. The workload Here at the Daft

Topics: daft embedding gpu model text

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Derivatives, Gradients, Jacobians and Hessians

news.ycombinator.com Unknown 2025-11-24 00:08:18

This article explains how these four things fit together and shows some examples of what they are used for. Derivatives Derivatives are the most fundamental concept in calculus. If you have a function, a derivative tells you how much that function changes at each point. If we start with the function , we can calculate the derivative as . Here are those two functions graphed. One use of derivatives is for optimization – also known as finding the lowest part on a graph. If you were at and wan

Topics: derivative derivatives function gradient minimum

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Disney’s Got a Cool ‘Andor’ Zine for Emmy Season

gizmodo.com Justin Carter 2025-11-24 00:30:21

With less than a month to go before the Emmys, Disney’s pulling out all the stops to make sure Andor takes home some gold. Not only did it recently release the script for “Welcome to the Rebellion,” one of its best season two episodes, it’s also getting the word out through the power of the press. As Disney describes it, the REBELIÓN zine celebrates “our 14 Emmy® nominations, the filmmakers, talent, and incredible craftspeople who were responsible for bringing this show to life,” and has alread

Topics: andor disney gilroy season series

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Watch Figure 02 Humanoid Fold Laundry in New AI Demo

cnet.com See Full Bio 2025-11-23 22:00:00

When the newest demo of the Figure 02 humanoid robot folding towels dropped, I knew I had to make a video about it. CNET's robot coverage always gets comments from viewers asking if robots could do their laundry. In the demo, Figure 02 folds towels at a rate of approximately 22 seconds per towel. Figure With advancements in AI and robotics, the dream of automated household chores feels closer, but it's not quite here yet. I tested my laundry-folding skills against Figure 02's robot to see just

Topics: 02 figure folding laundry robot

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Latest Tech News

These Chunks of Ice Move All By Themselves, Thanks to a Cool Engineering Trick

The Biggest Winners of China’s World Humanoid Robot Games

Picking a Spot for NASA’s Lunar Nuclear Reactor Is Trickier Than It Sounds

How the head of Obsidian went from superfan to CEO

Why Paradigm built a spreadsheet with an AI agent in every cell

5 reasons to switch to an immutable Linux distro today - and which to try first

Patients trust AI's medical advice over doctors - even when it's wrong, study finds

Linktree goes dark in India — and the company isn’t sure why

A Nintendo Direct focused on Kirby Air Riders is set for August 19

I replaced my MacBook charger with this compact wall unit - and wish I'd done it sooner

Grammarly gets a design overhaul, multiple AI features

The circular economy could make demolition a thing of the past

LLMs and coding agents are a security nightmare

The best gadgets and apps in August (so far)

Obsidian is too much for me, so I switched to this free alternative

iOS 26 tweaks iPhone Always On Display in a way you might not like

I dialed these 14 secret codes to unlock hidden features on my Android and iPhone

The best cheap smartwatches of 2025: Expert tested and reviewed

LLMs and Coding Agents = Security Nightmare

A short statistical reasoning test

Walkie-Textie Wireless Communicator

Ars Technica System Guide: Four sample PC builds, from $500 to $5,000

WIRED Takes You Back to School

The Tweens Down Under: Life Without Social Media in Australia

Leeches and the Legitimizing of Folk-Medicine

A Visual Exploration of Gaussian Processes (2019)

We Hit 100% GPU Utilization–and Then Made It 3× Faster by Not Using It

Derivatives, Gradients, Jacobians and Hessians

Disney’s Got a Cool ‘Andor’ Zine for Emmy Season

Watch Figure 02 Humanoid Fold Laundry in New AI Demo

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