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I changed 6 settings on my Roku TV to give it an instant performance boost

Maria Diaz/ZDNET Few things ruin the joy of watching a good show more than suddenly seeing that rotating asterisk symbol or swirly icon that tells you your TV is buffering. Or maybe it's stuttering, or altogether freezing. If this is happening on your Roku TV, don't give up on it just yet. Also: How to disable ACR on your TV (and why doing so makes such a big difference) Like phones and computers, Rokus have caches that accumulate temporary data, which inevitably slows them down over time. Th

How to turn off ACR on your TV (and why it make such a big difference)

Kerry Wan/ZDNET Did you know that whenever you turn on your smart TV, you invite an unseen guest to watch it with you? These days, most popular TV models utilize automatic content recognition (ACR), a form of ad surveillance technology that gathers information about everything you watch and transmits it to a centralized database. Manufacturers then use your data to identify your viewing preferences, enabling them to deliver highly targeted ads. Also: Your TV's USB port is seriously underutili

Space Elevators Could Totally Work—if Earth Days Were Much Shorter

Suppose you could speed up Earth’s rotation so that a day was only half as long? What would happen? Well, for starters we’d have to make new clocks that only have hours 1 to 6 for am and pm. If you had tickets to an 8 o’clock concert, you’d be out of luck: 8 o’clock no longer exists. But maybe a more germane question is, why do physicists ask nutty questions like this? It’s never going to happen—just move on, right? Well, here’s the deal. Thinking about counterfactual scenarios gives us insight

Space Elevators Could Totally Work—If Earth Days Were Much Shorter

Suppose you could speed up Earth’s rotation so that a day was only half as long? What would happen? Well, for starters we’d have to make new clocks that only have hours 1 to 6 for am and pm. If you had tickets to an 8 o’clock concert, you’d be out of luck: 8 o’clock no longer exists. But maybe a more germane question is, why do physicists ask nutty questions like this? It’s never going to happen—just move on, right? Well, here’s the deal. Thinking about counterfactual scenarios gives us insight

How much slower is random access, really?

by Sam Estep, 2025-06-23 You may know that, because your computer has different caches (L1, L2, L3...), and memory operations operate on cache lines of about 64 bytes each, you should write programs that exhibit locality to get maximum performance. L1 L1 L1 L1 L1 L1 L2 L2 L2 L2 L2 L2 L3 RAM (Disk not shown, of course.) But how well do you understand this idea? For instance, let's say you have an array of floating-point numbers, and an array of all the indices of the first array. You have a p

Alternative Layout System

This script imitates a method used in certain manuscripts, where the space between the last word of a line and the end of the text block is filled with various elements ― such as a simple or wavy pen stroke, repetition of the last letter, punctuation marks, embellished slashes, full stops, etc. It allows you to fill this space with one or more glyphs of your choice, or by repeating the last letter of the line.

Kea 3.0, our first LTS version

ISC is excited to announce the release of Kea 3.0.0! This is a major release, and is the first Long-Term Support (LTS) version of Kea. The software and release notes can be downloaded from our website at https://www.isc.org/download/#Kea. More Open, with Longer-term Support With this release, we are ending maintenance of Kea 2.4 and opensourcing TWELVE Kea hooks that were previously under a commercial license. Now, Kea open source users should be able to use all the features of Stork, includi

Researchers develop a battery cathode material that does it all

Battery electrode materials need to do a lot of things well. They need to be conductors to get charges to and from the ions that shuttle between the electrodes. They also need to have an open structure that allows the ions to move around before they reach a site where they can be stored. The storage of lots of ions also causes materials to expand, creating mechanical stresses that can cause the structure of the electrode material to gradually decay. Because it's hard to get all of these propert

The ‘Spider-Man 2’ Extended Edition Is Finally Swinging Into Theaters

Tobey Maguire’s Spider-Man trilogy is heading back into theaters once more, but this time things will look slightly different for the webslinger. For the first time, the home-release exclusive extended edition of Spider-Man 2 will be part of the theatrical release. Today Fathom Events announced that Sam Raimi’s Spider-Man films will return to theaters for a limited time beginning September 26. All three movies will screen in 4K, but for the first time, the version of Spider-Man 2 hitting theate

The Download: Google DeepMind’s DNA AI, and heatwaves’ impact on the grid

When scientists first sequenced the human genome in 2003, they revealed the full set of DNA instructions that make a person. But we still didn’t know what all those 3 billion genetic letters actually do. Now Google’s DeepMind division says it’s made a leap in trying to understand the code with AlphaGenome, an AI model that predicts what effects small changes in DNA will have on an array of molecular processes, such as whether a gene’s activity will go up or down. It’s just the sort of ques

Why this electric screwdriver is one of the best investments I've made for my home

ZDNET's key takeaways The new Bosch Go is on sale for $100. It features USB-C charging, a vast improvement on the old microUSB port, plus there's a bigger battery and a ring light on the front to illuminate the workspace. The screwdriver comes in a handy carry case with a selection of bits, so you have everything to do the job in hand. $99.98 at Amazon Two years ago, I got myself a Bosch Go electric screwdriver. The thing was amazing; it's been on my best electric screwdrivers list ever since

Team Fortress 2 is getting another major update with a little help from the community

In a nutshell: Valve has announced a pending update for Team Fortress 2, the popular team-based multiplayer first-person shooter originally released in 2007 for Windows and Xbox. The long-awaited update focuses on the game's Mann vs. Machine PvE mode and will include new community-created content. It's set to roll out before Halloween. Valve is inviting the community to submit Mann vs. Machine maps and missions by August 27 for potential inclusion in the update. The company clarified that, desp

Creatio’s new 8.3 Twin CRM update hits Salesforce where it hurts: ‘we don’t think of AI as an add-on…it’s just part of our app experience’

Join the event trusted by enterprise leaders for nearly two decades. VB Transform brings together the people building real enterprise AI strategy. Learn more Creatio, the Boston-headquartered customer relationship management (CRM) company focused on no-code and low-code CRM app deployment, has officially launched its latest platform update, the 8.3 “Twin” Release, introducing a suite of AI-native capabilities designed to streamline CRM and workflow automation. With this update, Creatio continu

NASA’S James Webb Space Telescope has captured its first direct image of an exoplanet

NASA’S James Webb Space Telescope has captured direct images of a planet outside of our solar system, which is the first time it has accomplished such a feat. This is a very big deal because exoplanets don't put out much light, so researchers typically discover new planets through indirect methods like keeping track of shadows as they pass across a host star. Webb, however, didn't have to do all that. It has directly captured images of a planet called TWA 7 b . Scientists believe the planet is

Three axial flux motors and 850 kW fast charging? Meet the GT XX.

Mercedes-Benz provided flights from Detroit to Stuttgart and accommodation so Ars could be briefed on the GT XX, as well as some other things we can't publish just yet. Ars does not accept paid editorial content. AFFALTERBACH, Germany—A few years ago, we were treated to the Mercedes-Benz EQXX. It was, at the time, the pinnacle of Mercedes engineering built for the purpose of maximum electric range. While an impressive piece of machinery that looked like it drove out of Le Mans, it wasn't design

Team Fortress 2 is getting a major update after 8 years, with a little help from the community

In a nutshell: Valve has announced a pending update for Team Fortress 2, the popular team-based multiplayer first-person shooter originally released in 2007 for Windows and Xbox. The long-awaited update focuses on the game's Mann vs. Machine PvE mode and will include new community-created content. It's set to roll out before Halloween. Valve is inviting the community to submit Mann vs. Machine maps and missions by August 27 for potential inclusion in the update. The company clarified that, desp

Before iOS 26, Apple Could Bring Some Bug Fixes to Your iPhone With iOS 18.6

Before Apple releases iOS 26 this fall, the company will release iOS 18.6. The company released the first public beta of that software on June 18, but it didn't change much on the iPhones of developers and beta testers. While iOS 26 will bring a major redesign to iPhones, the latest beta is filled with bug and security fixes, so developers and beta testers shouldn't expect new features. Read more: iOS 26 Finally Lets Us Get Rid of the Abomination That Is the 9-Minute Snooze Apple/Screenshot by

Topics: 18 apple beta ios release

How to Write Compelling Release Announcements

How to Write Compelling Software Release Announcements A release announcement showcases how the user’s experience is better today than it was yesterday. That sounds obvious, but most release announcements seem to forget that there’s a user at all. So many release announcements just enumerate new features in a way that’s totallly divorced from how real people use the software. The announcement is essentially just a changelog with better writing. For example, here’s a “changelog” style of annou

This Electric Scooter is 57% off the Original Price, Amazon Wants to Clear Its Stock Before Prime Day

Electric scooters are the newest hip means of transportation with a great combination of convenience, speed, and style. With so many available models, it’s sometimes difficult to find one that provides solid performance along with dependable safety features. The Maxshot electric scooter is the intelligent choice if you require both—and now it’s affordable enough to ignore. Originally priced at $399, the Maxshot scooter has lost a lot of its original price over time with its all-time lowest pric

Insta360’s new wireless mic looks no bigger than an Apple AirTag

is a senior reporter who’s been covering and reviewing the latest gadgets and tech since 2006, but has loved all things electronic since he was a kid. Having already secured a strong foothold in the action cam market with its Ace Pro lineup, Insta360 is now challenging DJI, Shure, and Rode with the company’s first wireless microphone. Looking comparable in size to an Apple AirTag, the Insta360 Mic Air is one of the smallest and lightest wireless mics now available while still offering up to 10

Google Photos could soon suggest photos you may want to delete (APK teardown)

Edgar Cervantes / Android Authority TL;DR Google Photos may soon offer suggestions to help users clean up storage by deleting unnecessary photos. These suggestions will appear after users delete multiple photos. The feature will likely be optional, and the app could receive a corresponding setting to turn it off. Google Photos already offers a convenient way for users to free up storage space on their devices through the “Manage storage” option. It lists photos and videos with large file siz

The Debrief: Power and energy

Yet in many ways right now the US seems to be forgetting those lessons. It is moving backward in terms of its clean-­energy strategy, especially when it comes to powering the grid, in ways that will affect the nation for decades to come—even as China and others are surging forward. And that retreat is taking place just as electricity demand and usage are growing again after being flat for nearly two decades. That growth, according to the US Energy Information Administration, is “coming from the

Finally, an Android Auto adapter that's functional, easy to pair with, and priced well

ZDNET's key takeaways The AAWireless Two costs $65 and gives you wireless Android Auto support when plugged in. A new built-in button lets you quickly swap between paired devices. The companion app is almost too robust, but that's a good problem to have. $64.99 at Amazon Since I bought my first car three years ago, I've had the worst luck with wireless Android Auto adapters. I initially sprung for the Motorola MA1 because of its popularity and, admittedly, Amazon's algorithmic recommendation,

Incogni vs. DeleteMe: Which service removes your personal data best?

Maria Diaz/ZDNET Data removal services began to appear around 15 years ago, after data brokers realized that data could become a new, valuable currency -- and one ripe for exploitation, given the lack of laws and little to no consumer data privacy protection written into legislation. Incogni and DeleteMe, founded in 2021 as part of VPN provider Surfshark and in 2010 by Abine Privacy, respectively, are two of the most widely-known data removal services in the US. Both companies offer data remov

More news from the labs of MIT

New electronic “skin” could lead to lightweight night-vision glasses MIT engineers have developed a technique to grow and peel ultrathin “skins” of electronic material that could be used in wearable sensors, flexible transistors and computing elements, and sensitive compact imaging devices. Technology makes pesticides stick to plant leaves A new pesticide application system developed by MIT researchers and their spinoff company could significantly cut use of pesticides and fertilizers, saving

ElevenLabs' new AI voice assistant can automate your favorite tasks - and you can try it for free

oxygen/Getty Images AI assistants are cropping up faster than we can keep track of them, promising to automate our mundane daily tasks and skyrocket productivity. AI audio company ElevenLabs wants to take those promises a step further: from words to actions. Also: How AI can save us from our 'infinite' workdays, according to Microsoft On Monday, the company launched 11ai, a voice assistant powered by the company's library of more than 5,000 voices. What sets this assistant apart, ElevenLabs c

ElevenLabs releases a stand-alone voice-generation app

Voice AI company ElevenLabs just released a stand-alone mobile app for iOS and Android users to generate voice clips from text. Until now, if you had to generate samples using ElevenLabs’ AI-powered voice libraries, you had to rely on its web app. Now you can use its mobile app to generate clips on the go. To use the app, simply type or paste in the text, then select a suitable voice to generate an audio clip. The free plan gives users access to roughly 10 minutes of audio generation. You can

UGREEN’s 2-in-1 Magnetic Foldable Charging Station Has Never Been This Cheap, Early Prime Day Makes It Happen

We are inundated with devices that need to be plugged in every once in awhile. Our phones need to charge, our headphones need to charge, our watches — you guessed it — need to charge. This can result in cables and running all across our desk space or nightstands. Avoid all of that unnecessary, stress-inducing clutter by getting yourself one device that can charge all others! UGREEN’s MagFlow 2-in-1 charging station is designed for use with Apple products like the iPhone and AirPods and can wirel

ElevenLabs releases a standalone voice generation app

Voice AI company ElevenLabs just released a standalone mobile app for iOS and Android users to generate voice clips from text. Until now, if you had to generate samples using ElevenLabs’ AI-powered voice libraries, you had to rely on its web app. Now, you can use its mobile app to generate clips on the go. To use the app, you simply type or paste in the text, then select a suitable voice to generate an audio clip. The free plan gives users access to roughly 10 minutes of audio generation. You

New York City's Power Is Going Down Amid Brutal Heatwave

"Like an air fryer, it's going to be hot." America Unplugged While a gigantic heat dome parks itself like an unwelcome guest over a major swath of the United States, residents of the ultra-dense metropolis of New York City are the perfect example of a country so cooked by climate change that it's overwhelming existing infrastructure. More than 3,000 people were without power for a second day in a row in parts of Queens, Brooklyn and Staten Island, according to local broadcaster PIX 11. Con Ed