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The 9 most sought-after startups from YC Demo Day

Y Combinator hosted its Summer 2025 Demo Day last week, showcasing the latest batch of over 160 startups. As with recent batches, the majority of startups presented AI-centric solutions. However, a clear evolution was evident. Instead of “AI-powered” products, many companies are now building AI agents or the infrastructure and tools needed to develop them. For instance, this batch had a flurry of voice AI solutions and new businesses focused on helping others monetize the “AI economy” with ads

Calif. construction worker unofficially broke a fabled world record

It was a muggy July day in Santa Cruz and life could not have been more mundane for Alessandro “Alo” Slebir. The 24-year-old was pounding wooden concrete forms into a missing section of sidewalk. Cars raced by on a suburban highway as a neighbor walked over, looked at Slebir and asked, “Should I move my car?” “Hey, no worries, you’re fine! You’re not in the way,” Slebir said, in his characteristically friendly demeanor before returning to his hammer. You wouldn’t know it from the work boots or

AOMedia Announces Year-End Launch of Next-Gen Video Codec AV2

The Future of Innovation Is Open: AOMedia Member Survey Highlights Adoption Trends Wakefield, Mass. — Sept. 15, 2025 — The Alliance for Open Media (AOMedia), a global collaboration of innovators working together to define and deploy open standards that power the next generation of media experiences, today announced the upcoming launch of the next evolution in open video coding: AV2. Set for a year-end release, AV2 is not only an upgrade to the widely adopted AV1 but also a foundational piece of

Unplugging these 7 household devices saved me $200 a year in electricity

Adela Stefan / 500px / Getty Images Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Unplugging idle devices can save on power bills. TVs, consoles, coffee makers, and mini-fridges are top culprits. Small daily changes help cut energy waste and lower electricity costs. With costs climbing across the US, energy prices stand out -made worse by record-breaking summer heat and recent waves scorching multiple states. Having endured several of them this season, I'm alw

I unplugged these 7 household devices and saved $200 a year in electricity

Adela Stefan / 500px / Getty Images Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Unplugging idle devices can save on power bills. TVs, consoles, coffee makers, and mini-fridges are top culprits. Small daily changes help cut energy waste and lower electricity costs. With costs climbing across the US, energy prices stand out -made worse by record-breaking summer heat and recent waves scorching multiple states. Having endured several of them this season, I'm alw

Apple’s new iPhone charger is a (second) of its kind

is a deputy editor and Verge co-founder with a passion for human-centric cities, e-bikes, and life as a digital nomad. He’s been a tech journalist for 20 years. Posts from this author will be added to your daily email digest and your homepage feed. Alongside its new iPhone 17 lineup, Apple casually launched what looked like a world’s first charger with support for the USB PD 3.2 AVS protocol last week inside the very dull sounding “Apple 40W Dynamic Power Adapter with 60W Max.” Only it’s not:

Android brands should learn honesty from Apple’s fast charger (?!)

TL;DR Apple’s new 40W Dynamic Power Adapter with 60W Max provides more transparent marketing than most other fast chargers. The charger’s branding differentiates between sustained power (40W) and peak power (60W). It supports the USB PD 3.2 AVS protocol, a step toward more open charging solutions, unlike many proprietary Android chargers. Apple launched the iPhone 17 series last week, but there was one new piece of hardware launched alongside it that flew under the radar: Apple’s new 40W Dyna

Apple’s new iPhone charger is a first of its kind

is a deputy editor and Verge co-founder with a passion for human-centric cities, e-bikes, and life as a digital nomad. He’s been a tech journalist for 20 years. Posts from this author will be added to your daily email digest and your homepage feed. Alongside its new iPhone 17 lineup, Apple casually launched a world’s first last week inside the very dull sounding “Apple 40W Dynamic Power Adapter with 60W Max.” It’s the first charger to support the USB PD 3.2 AVS protocol, giving you some of the

The Quest to Find the Longest-Running Simple Computer Program

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

Java 25's new CPU-Time Profiler

This is the first part of my series; the other parts are Back to the blog post: More than three years in the making, with a concerted effort starting last year, my CPU-time profiler landed in Java with OpenJDK 25. It’s an experimental new profiler/method sampler that helps you find performance issues in your code, having distinct advantages over the current sampler. This is what this week’s and next week’s blog posts are all about. This week, I will cover why we need a new profiler and what in

Hong Kong Disneyland Teases Avengers and Pixar Attractions

Disneyland Hong Kong first opened 20 years ago, and to celebrate, the company showed off concept for what’s coming in the future. Concept art below shows teases for attractions based on Marvel and Pixar. For the superheroes, one art features the Avengers headquarters, while another shows Spider-Man with Doctor Strange, Black Panther, and Thor in Asgard around a pod of parkgoers dropping through the Bifrost Bridge. This concept art—and a previously released art of Spidey holding a pod while figh

Java 25's new CPU-Time Profiler (1)

More than three years in the making, with a concerted effort starting last year, my CPU-time profiler landed in Java with OpenJDK 25. It’s an experimental new profiler/method sampler that helps you find performance issues in your code, having distinct advantages over the current sampler. This is what this week’s and next week’s blog posts are all about. This week, I will cover why we need a new profiler and what information it provides; next week, I’ll cover the technical internals that go beyon