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We Asked Dentists: What's the Best Whitening Toothpaste of 2025?

Why we like it: Colgate Optic White Pro Series toothpaste is one whitening toothpaste that Dr. Fatima Khan, a dentist in Houston, Texas, recommends. Some of her reasons for recommending it include its trusted brand name and its 5% hydrogen peroxide whitening agent. Unlike other whitening agents that work by removing stains on the surface of the tooth, hydrogen peroxide can get inside the tooth so it whitens intrinsically as well as extrinsically. Sachar also recommends this toothpaste, saying,

Rupert's Property

You can cut a hole in a cube that’s big enough to slide an identical cube through that hole! Think about that for a minute—it’s kind of weird. Amazingly, nobody could prove any convex polyhedron doesn’t have this property! It’s called ‘Rupert’s property’. Until this week. This week Steininger and Yurkevich proved there is a convex polyhedron that you can’t cut a hole in big enough to slide the entire polyhedron through the hole. It has 90 vertices, and apparently 240 edges and 152 faces. To

US targets North Korean IT worker army with new sanctions

The U.S. Treasury’s Office of Foreign Assets Control (OFAC) has sanctioned two individuals and two companies associated with North Korean IT worker schemes that operate at the expense of American organizations. These schemes involve placing in U.S. firms skilled tech workers with stolen or fabricated identities and using so-called “laptop farms” to hide the true location of the employees. The workers funnel their earnings to the DPRK regime to fund the regime's weapons program. They also often

Google warns Salesloft breach impacted some Workspace accounts

Google now reports that the Salesloft Drift breach is larger than initially thought, warning that attackers also used stolen OAuth tokens to access a small number of Google Workspace email accounts in addition to stealing data from Salesforce instances. "Based on new information identified by GTIG, the scope of this compromise is not exclusive to the Salesforce integration with Salesloft Drift and impacts other integrations,' warns Google. "We now advise all Salesloft Drift customers to treat

After 2 Million AI Orders, Taco Bell Admits Humans Still Belong in the Drive-Thru

Fast food companies have been experimenting with integrating artificial intelligence into their restaurants, from Flippy the burger-flipping robot at White Castle to dynamic pricing at Wendy's. One arena where AI seems to really be struggling, though, is at the drive-thru -- and Taco Bell is the latest to experience AI mishaps at the order box. After taking 2 million orders with AI, Taco Bell has reached one conclusion: we still need humans. "We're learning a lot, I'm going to be honest with yo

Topics: ai bell drive really taco

Trump administration’s deal is structured to prevent Intel from selling foundry unit

The Trump administration seems intent on controlling Intel’s ability to make key business decisions around its floundering foundry business unit. Intel’s CFO David Zinsner shared new details about the company’s recent deal with the Trump administration, which gave the U.S. government a 10% equity stake, at a Deutsche Bank conference on Thursday, according to reporting from the Financial Times. The deal was structured in a way to penalize Intel if it spins out its foundry business unit, which m

Android Auto is glitching out for some new Pixel 10 owners, because of course it is

Rita El Khoury / Android Authority TL;DR Pixel 10 deliveries have started arriving for shoppers who got their orders in early. Multiple new Pixel 10 owners have reported running into Android Auto failures that aren’t happening with other phones. Issues include display freeze-ups and getting stuck on the Android Auto logo. Google’s latest smartphones have arrived — and we don’t just mean they’ve gone official, as they did at last week’s Made By Google event. Today is the official ship date fo

Intel gets $5.7 billion from Trump deal as White House says details are 'being ironed out'

Intel CFO David Zinser said that the semiconductor giant received $5.7 billion from the U.S. government on Wednesday evening. Zinsner acknowledged the investment on Thursday during an investor conference. The investment is part of the White House's decision last Friday to take a 10% stake in the beleaguered computer chip company. Zinser also signaled the possibility that Intel seeks outside investment for its foundry business. The company reported better-than-expected second-quarter results

Taco Bell Says ‘No Más’ to AI Drive-Thru Experiment

Last year, Taco Bell made a simple bet that Alexa-like voice assistants could handle the drive-thru window. It didn’t consider whether people could handle dealing with AI. According to the Wall Street Journal, the company embedded AI in the drive-thru boxes at more than 500 locations across the country and quickly found that it made mistakes, creeped people out, and got very easily manipulated. “We’re learning a lot, I’m going to be honest with you,” Taco Bell Chief Digital and Technology Offic

Topics: ai bell drive people taco

I Tested Honor's Rival to Samsung's Z Fold 7 and It's a Skinny Powerhouse

At only 4.1mm thick at its thinnest unfolded point, the Honor Magic V5 is incredibly skinny. In fact, the company has said it's the world's thinnest foldable measuring in just 0.1mm skinnier than Samsung's Galaxy Z Fold 7. That claim is debated -- it depends whether you include the built-in screen protector or not -- but we're almost literally splitting hairs at this point. World's thinnest or not, it's mind-blowingly svelte. Well, it blew my mind, anyway. The other foldables I've been using re

Mark Cuban’s war on America’s $5 trillion healthcare machine: ‘They can’t react as quickly’

Billionaire entrepreneur and investor Mark Cuban thinks America’s healthcare industry is broken, and he’s not mincing words about it. “No one looks at the financial side of healthcare and says, ‘This is the way it should work,’” Cuban said on this week’s episode of the Equity podcast. “When you go to the doctor and you get a prescription . . . you have no idea what the cost to you is going to be. You don’t know if you can afford it or not.” The former “Shark Tank” host and minority owner of th

Google Photos is letting you lift subjects as stickers — but only on iOS (Update: Announcement)

Update, August 28, 2025 (10:05 AM ET): Just days after we first got word of this new sticker tool in Photos hitting iOS users, Google has gone ahead and formally announced the feature. The company confirms that for the moment, at least, sticker generation is going to remain an iOS exclusive. That said, Google tells us that “Android support hasn’t rolled out yet, but we’ll keep you posted when that changes,” so just have a little patience. Original article, August 25, 2025 (09:36 AM ET): One of

Taco Bell’s AI drive-thru plan gets caught up on trolls and glitches

is a news writer who covers the streaming wars, consumer tech, crypto, social media, and much more. Previously, she was a writer and editor at MUO. Posts from this author will be added to your daily email digest and your homepage feed. Taco Bell’s plan to outfit hundreds of drive-thrus with an AI voice assistant isn’t going exactly as the chain expected. Dane Mathews, Taco Bell’s chief digital and technology officer, admitted to The Wall Street Journal that the company is re-evaluating where t

Petition to stop Google from restricting sideloading and FOSS apps

As Google will allow only apps from verified developers to be installed on Android (previous discussion): https://news.ycombinator.com/item?id=45017028 A developer started a petition to stop Google from limiting app installation on Android devices unless developers provide personal identity documents. Even though Google has not revoked similar controversial policies in the past, we do our best as much as we can. This change particularly threatens the freedom to build, share, and use software w

Pixel 10's US Launch Might Be the Moment That eSIM Finally Becomes Easy

Google's choice to go eSIM-only in the US for the Pixel 10 might actually be a well-timed move by the company. While I was initially concerned that an eSIM-only phone might be a frustrating roadblock for the Pixel 10, several advances in how the US carriers support eSIM, along with a new iOS 26 feature, might actually make it easier than ever to switch your phone. And it's a good thing too, as despite being available for years and being required for the iPhone in the US since 2022's iPhone 14 l

With developer verification, I’m struggling to think of Android as a proper smartphone platform

C. Scott Brown / Android Authority When I first started using a smartphone, the choice between Android and iOS felt like an easy one. Sure, Apple had an attractive UI, and an early lead on third-party software support, but going the iPhone route meant living in Apple’s walled garden. And while there are absolutely benefits to that kind of approach, it just fundamentally felt wrong to me: I viewed smartphones as the next phase of general-purpose computers, and wasn’t interested in a platform loc

ARMSX2 is the future of PS2 emulation on Android, and you can try it now

Hadlee Simons / Android Authority TL;DR ARMSX2 is an upcoming Android fork of the PS2 emulator PCSX2. Test builds are now available, with the open-source 1.0 release coming to GitHub. This has the potential to overtake AetherSX2, which is based on an outdated PSCX2 build. While it’s certainly playable, PS2 emulation on Android has largely stagnated since AetherSX2 was abandoned in early 2023. Other devs have done an incredible job tweaking the closed-source code to add new features, but thos

Google’s sideloading crackdown could blunt some eReaders’ edge

Rita El Khoury / Android Authority TL;DR Google’s latest app requirement may soon block the sideloading of apps from unregistered developers. The change could impact readers who rely on sideloaded apps on their Android-based eReaders. The new requirement will begin rolling out in September 2026. Google’s latest app requirement claims to protect users, but feels more like a move for greater control. In accordance with the “developer verification requirement,” developers will need to confirm t

This Android-powered Nintendo DS has fully replaced my OG hardware

MagicX Zero 40 The MagicX Zero 40 turns an aging Android operating system into the best Nintendo DS emulation handheld on the market. It's not great for anything else, but it beats the original hardware in significant ways, despite only having one screen. The Nintendo DS was an absolutely groundbreaking handheld, and I have fond memories of sneaking a few turns of Advance Wars: Dual Strike under my desk in high school. Only a few companies have tried to recapture the two-screen magic, and aside

Topics: 40 android ds games zero

Nothing used stock photography in Phone 3 on-device ad (Updated: Explanation)

Ryan Haines / Android Authority TL;DR A Nothing Phone 3 retail demo was spotted making misleading claims about photo samples. Android Authority has spoken to two of the photographers who shot the pics, who confirm they did not use the Phone 3 at all. Asked for comment, Nothing didn’t immediately deny the claims, but later offered an explanation. Update, August 27, 2025 (07:40 AM ET): Nothing co-founder Akis Evangelidis has provided a detailed explanation for the stock photos found on Nothing

FDA approves updated covid vaccines, but with severe new limits

is a news writer who covers the streaming wars, consumer tech, crypto, social media, and much more. Previously, she was a writer and editor at MUO. Posts from this author will be added to your daily email digest and your homepage feed. On Wednesday, the FDA approved the new round of COVID-19 vaccines from Pfizer, Moderna, and Novavax for use by seniors over the age of 65. But for anyone younger than that, the FDA approval only mentions people who have “at least one underlying condition that pu

Google’s new Android 16 statue takes a spin on a Material 3 Expressive merry-go-round

Damien Wilde / Android Authority TL;DR Google has unveiled its latest statue to commemorate the release of Android 16. The statue features Android’s mascot on a merry-go-round. The seats are fashioned to look like Material 3 Expressive UI shapes. Google has a tradition of commemorating the release of major Android OS updates by unveiling new statues of its Android mascot, “The Bot.” The company released the stable version of Android 16 back in June, and we’ve been waiting ever since to see w

Chipolo’s new CARD and LOOP bring stylish tracking to Android’s Find Hub

Chipolo TL;DR Chipolo has launched two new premium trackers, the CARD and LOOP. Both are compatible with Android’s Find Hub and Apple’s Find My. The wallet-sized CARD and silicone-strap LOOP emphasize design, loud alerts, and eco-friendly materials. Both are rechargeable and last around six months per charge. They’re available now. Google’s Find Hub network is the go-to system for tracking lost devices and accessories on Android, and popular Bluetooth tracker manufacturer Chipolo is expandin

Beginning 1 September, we will need to geoblock Mississippi IPs

I'll start with the tl;dr summary to make sure everyone sees it and then explain further: As of September 1, we will temporarily be forced to block access to Dreamwidth from all IP addresses that geolocate to Mississippi for legal reasons. This block will need to continue until we either win the legal case entirely, or the district court issues another injunction preventing Mississippi from enforcing their social media age verification and parental consent law against us. Mississippi residents,

Apple just got partial App Store vindication from a very unlikely source

Apple has been under fire from legislators for its App Store practices for years. But while it’s been forced to make iPhone changes in the EU and the US might soon follow, Google is now trending the opposite direction with its Android policies. Google is about to enforce stricter Android app verification requirements Earlier this week, Google announced a surprising shift toward restricting which apps an Android user can download. Abner Li writes at 9to5Google: To combat malware and financial

I changed these 12 settings on my Android phone to greatly extend its battery life

Kerry Wan/ZDNET Follow ZDNET: Add us as a preferred source on Google. I've spent large portions of my life looking for ways to extend the battery life on my Android phones. Admittedly, that sounds rather dramatic, but growing up with only budget models meant I was constantly tweaking device settings to squeeze every bit of juice out of their batteries. Thanks to this micromanaging, I successfully pushed the batteries on all my past smartphones to their absolute limit. I don't want to hoard th

GMP damaging Zen 5 CPUs?

GMP damaging Zen 5 CPUs? Background We have fried two Ryzen 9950X CPUs in a few months by running GMP tests. This is not expected, of course. In this page, we provide as much information as possible to help analysing the problem. What causes these CPUs to die while running GMP is unknown to us. While similar, it is not the widely reported Asrock motherboard problem, as the motherboards we use are of a different make (see below). It might be that the Zen 5 CPUs pull more power than specified w

Topics: 2nd cpu cpus ddr5 mem

Wallpaper Wednesday: Special Google Pixel 10 edition! (August 27)

C. Scott Brown / Android Authority Welcome to Wallpaper Wednesday! In this weekly roundup, we’ll give you a handful of Android wallpapers you can download and use on your phone, tablet, or even your laptop/PC. The images will come from folks here at Android Authority as well as our readers. All are free to use and come without watermarks. File formats are JPG and PNG, and we’ll provide images in both landscape and portrait modes, so they’ll be optimized for various screens. For the newest wall

I've Spent Days Testing the Pixel 10 Pro XL and It's Quite the Android Phone

I'd already spent a lot of time with the Pixel 10 Pro XL in Paris -- including extensively testing its camera -- so there was a lot I already liked about it. I'm keen on the design, the display is vibrant and bright enough to use under the midday Paris sunshine and the camera is capable of taking some really great-looking images. Now that I have Google's new flagship phone in my hand I've been able to dive deeper, playing games, using the new AI tools and generally finding out what this phone i

The first stars may not have been as uniformly massive as we thought

For decades, astronomers have wondered what the very first stars in the universe were like. These stars formed new chemical elements, which enriched the universe and allowed the next generations of stars to form the first planets. The first stars were initially composed of pure hydrogen and helium, and they were massive—hundreds to thousands of times the mass of the Sun and millions of times more luminous. Their short lives ended in enormous explosions called supernovae, so they had neither the