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More Efficient Thermoelectric Cooling

Researchers at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, have developed a new, easily manufacturable solid-state thermoelectric refrigeration technology with nano-engineered materials that is twice as efficient as devices made with commercially available bulk thermoelectric materials. As global demand grows for more energy-efficient, reliable and compact cooling solutions, this advancement offers a scalable alternative to traditional compressor-based refrigeration.

Whole-genome ancestry of an Old Kingdom Egyptian

Provenance and ethics The human remains were excavated from the Nuwayrat necropolis near Beni Hasan, Egypt. They were donated between 1902 and 1904 by the Egyptian Antiquities Service to the members of the Beni Hasan excavation committee and subsequently donated to the Institute of Archaeology, University of Liverpool and exported under the John Garstang export permit. The human remains were then donated to the World Museum (previously the Liverpool City Museum) in 1950. Sampling permit was gra

Escher's art and computer science

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Firefox 120 to Firefox 141 Web Browser Benchmarks

For those curious about the direction of Mozilla Firefox web browser performance over the past year and a half, here are web browser benchmarks for every Firefox release from Firefox 120 in November 2023 through the newest Firefox 140 stable and Firefox 140 beta releases from a few days ago. Every major Firefox release was benchmarked on the same Ubuntu Linux system with AMD Ryzen 9 9950X for evaluating the performance and memory usage of this open-source web browser. Following the recent Firef

Dozens of fake wallet add-ons flood Firefox store to drain crypto

More than 40 fake extensions in Firefox’s official add-ons store are impersonating popular cryptocurrency wallets from trusted providers to steal wallet credentials and sensitive data. Some of the extensions pretend to be wallets from Coinbase, MetaMask, Trust Wallet, Phantom, Exodus, OKX, Keplr, and MyMonero, and include malicious code that sends stolen information to attacker-controlled servers. Fake wallet extensions on the Firefox add-ons store Source: BleepingComputer Researchers at Koi

Fakespot shuts down today after 9 years of detecting fake product reviews

Today marks the end of an era. After nearly a decade of helping millions of shoppers navigate the murky waters of online reviews, Fakespot has officially closed its doors. If you tried to check a product listing this morning and found Fakespot not working, you're not alone. The service has permanently shut down. TL;DR: Fakespot, the popular fake review detection tool acquired by Mozilla in 2023, shut down today, July 1, 2025. Founded by Saoud Khalifah in 2016, it helped millions identify unreli

This Debian-based Linux distro is an overlooked and user-friendly gem

Jack Wallen/ZDNET I spend a lot of time looking for Linux distributions that fit in certain niches, and one of the most important niches is those open-source operating systems that can serve the general public. When looking for such distributions, I tend to consider those based on Ubuntu first, which one might think is limiting, but there are hundreds of distributions with that base. Every so often, however, I run into a Debian-based distribution that fits the bill. That makes perfect sense, g

Show HN: TokenDagger – A tokenizer faster than OpenAI's Tiktoken

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My AC system isn't blowing cold air - 5 easy and quick fixes that experts recommend

fhm/Getty Images It always happens during a heatwave. That moment of sinking dread when your AC unit kicks on, but instead of a refreshing blast of arctic air, you're met with a weak, lukewarm breeze. Then panic sets in. Is the AC dead? Is this going to cost a fortune? How will I get to sleep tonight in this stifling heat and humidity? While a truly broken AC unit can indeed be a headache and an expense, the good news is that it's not always a catastrophic failure. The reason your system isn't

Glass nanostructures reflect nearly all visible light, challenging assumptions

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Nanoscale 3D printing of glass. Credit: Science Advances (2025). DOI: 10.1126/sciadv.adv0267 A research team led by SUTD has created nanoscale glass structures with near-perfect reflectance, overturning long-held assumptions about what low-index materials can do in photonics. For decades, glass has been a reliable

What Are AI Video Generators? What to Know About Google's Veo 3, Sora and More

First came the rise of AI chatbots, then image generators blew up. Now, tech companies are rushing to release AI video generators. During the past year, nearly every major tech company has announced some kind of AI video model they've been cooking. Each company has its own timeline, which can make it hard to keep up with who's done what. To save you from searching, I've run down every major AI video program and compiled my early insights on the testing I've done on the programs available now. T

My AC system wasn't blowing cold air - these 5 easy and quick fixes did the trick

Yuga Kurita/Getty Images It always happens during a heatwave. That moment of sinking dread when your AC unit kicks on, but instead of a refreshing blast of arctic air, you're met with a weak, lukewarm breeze. Then panic sets in. Is the AC dead? Is this going to cost a fortune? How will I get to sleep tonight in this stifling heat and humidity? While a truly broken AC unit can indeed be a headache and an expense, the good news is that it's not always a catastrophic failure. The reason your syst

Why your AC isn't blowing cold air - and 5 easy and quick ways to fix it

Yuga Kurita/Getty Images It always happens during a heatwave. That moment of sinking dread when your AC unit kicks on, but instead of a refreshing blast of arctic air, you're met with a weak, lukewarm breeze. Then panic sets in. Is the AC dead? Is this going to cost a fortune? How will I get to sleep tonight in this stifling heat and humidity? While a truly broken AC unit can indeed be a headache and an expense, the good news is that it's not always a catastrophic failure. The reason your syst

Access BMC UART on Supermicro X11SSH

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100,000 Mattresses Sold on Amazon Are Being Recalled Due to Fire Risk. Here’s What You Should Know

You'll want to check the tags if you purchased a mattress from Amazon within the past couple of years. According to the US Consumer Product Safety Commission (CSPC), around 100,000 Crayan mattresses are being recalled due to flammability risks as of June 18, 2025. Here’s how to check if you have one of these mattresses and how to receive a refund. What products are being recalled? The recall involves Crayan Mattresses’ 10-inch and 12-inch beds (twin, full, queen and king sizes), sold on Amazon

Firefox 140 launches with both new ESR and stable versions

Firefox's has been reimagined in 2025 to be fast, modern and inviting the first time you run it and every day after. We've always had your back on privacy, and still do. We think the browser should be a piece of software you can rely on to have your back, pleasant to look at and working seamlessly with the web. Why is Firefox sending me notifications from websites I don't have open? Firefox supports web push notifications, which allow websites to send alerts even when they are not open. If you

Adobe's New Firefly AI App Lets You Try AI Image and Video Generation for Free

Adobe's Firefly AI is now available as mobile apps for iPhones and Androids, the company announced on Tuesday. These apps are free to download and let you use Firefly to create AI images and videos on the go. Plus, the app comes with a few free generative credits for you to experiment with Adobe's AI. Adobe is also expanding its roster of third-party AI partners to include six new models from Ideogram, Pika, Luma and Runway. Google's latest AI models are also joining the lineup, including the i

Xbox app now lets Windows Insiders launch games from Steam, Epic, and more

Something to look forward to: Xbox Insiders can now test a new feature that enables launching games from different storefronts directly in the Xbox PC app. The functionality first leaked in March and is slated to roll out alongside the ROG Ally X handhelds later this year, allowing users to start games with a controller and bypass the traditional Windows desktop entirely. Juggling games across Steam, the Epic Games Store, GOG, the Xbox app, and other clients has long frustrated users. Some laun

Nano-Vllm: lightweight vLLM implementation built from scratch

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Adobe's New iOS and Android AI Apps Let You Use Google's Veo 3, Runway and More

Adobe's Firefly AI is now available as mobile apps for iPhones and Androids, the company announced on Tuesday. These apps are free to download and let you use Firefly to create AI images and videos on the go. Plus, the app comes with a few free generative credits for you to experiment with Adobe's AI. Adobe is also expanding its roster of third-party AI partners to include six new models from Ideogram, Pika, Luma and Runway. Google's latest AI models are also joining the lineup, including the i

Minimal auto-differentiation engine in Rust

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Defending the Internet: how Cloudflare blocked a monumental 7.3 Tbps DDoS attack

9 min read This post is also available in Français Nederlands and Español In mid-May 2025, Cloudflare blocked the largest DDoS attack ever recorded: a staggering 7.3 terabits per second (Tbps). This comes shortly after the publication of our DDoS threat report for 2025 Q1 on April 27, 2025, where we highlighted attacks reaching 6.5 Tbps and 4.8 billion packets per second (pps). The 7.3 Tbps attack is 12% larger than our previous record and 1 Tbps greater than a recent attack reported by cyber

Minimal auto-differentiation engine in Rust (for educational purposes)

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Show HN: Sexprs – Lisp dialect written in Rust

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Show HN: Tiny Hoare logic verifier using SMT

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Show HN: Trieve CLI – Terminal-based LLM agent loop with search tool for PDFs

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Dell Alienware AW3425DW 34" 240Hz Review

The new Dell Alienware AW3425DW arrives with a clear mission: improve on one of the most popular ultrawide gaming monitors of the last few years without reinventing the wheel. For a long time, the AW3423DW and its lower-cost sibling, the AW3423DWF, have been standout picks – offering premium performance at a price many gamers could justify. Case in point, the 25DW is the successor to the gaming monitor I've personally been using for the last three years. Dell consistently offers great performan

Dell Alienware AW3425DW 34" 240Hz Review

The new Dell Alienware AW3425DW arrives with a clear mission: improve on one of the most popular ultrawide gaming monitors of the last few years without reinventing the wheel. For a long time, the AW3423DW and its lower-cost sibling, the AW3423DWF, have been standout picks – offering premium performance at a price many gamers could justify. Case in point, the 25DW is the successor to the gaming monitor I've personally been using for the last three years. Dell consistently offers great performan