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At least 36 new tech unicorns were minted in 2025 so far

With AI igniting an investor frenzy, every month, more startups obtain unicorn status. Using data from Crunchbase and PitchBook, TechCrunch tracked down the VC-backed startups that became unicorns so far this year. While most are AI-related, a surprising number are focused in other industries like satellite space companies like Loft Orbital and blockchain-based trading site Kalshi. This list will be updated throughout the year, so check back and see the latest powerhouse startups who are now w

This $179 portable projector has a 190-degree gimbal that has turned my ceiling into a cinema screen

Dangbei N2 Mini A compact, portable projector with crisp visuals and built-in streaming apps, the Dangbei N2 Mini offers a budget-friendly option for casual movie nights. Its clever, built-in gimbal makes even the ceiling fair game for an impromptu screening location. I don’t need an excuse to head to bed early, but I’ll take one if it presents itself. With the ability to project my favorite shows right on the ceiling of my bedroom, the Dangbei N2 Mini projector has quickly become a quiet favor

Best early Prime Day phone deals: These 14 sales are worth the upgrade

'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

How the Binding of Two Brain Molecules Creates Memories That Last a Lifetime

The original version of this story appeared in Quanta Magazine. When Todd Sacktor was about to turn 3, his 4-year-old sister died of leukemia. “An empty bedroom next to mine. A swing set with two seats instead of one,” he said, recalling the lingering traces of her presence in the house. “There was this missing person—never spoken of—for which I had only one memory.” That memory, faint but enduring, was set in the downstairs den of their home. A young Sacktor asked his sister to read him a book

Meteorologists Say the National Weather Service Did Its Job in Texas

At least 27 people, including nine children, are dead in central Texas after flash floods struck suddenly on the morning of the Fourth of July holiday. After a storm in which a month’s worth of rain fell in some regions in just a few hours, officials say they rescued more than 850 people from the floods over Friday and Saturday. A number of people were still missing as of Saturday afternoon, including 27 young campers from a Christian girls’ camp on the banks of the Guadalupe River. Some local

The Calculator-on-a-Chip (2015)

Calculator Articles The Arrival of the "Calculator-on-a-Chip" During the late 1960s and early 1970s a major aim of the calculator electronics companies was to integrate all of the functionality of a calculator into one integrated circuit, so producing a "Calculator-on-a Chip". © 2015 Nigel Tout This is a new article which was not originally in "The International Calculator Collector". Introduction As told in the section "The Story of the Race to Develop the Pocket Electronic Calculator", fro

Add Paramount+, STARZ, and more to your Prime Video account for just $0.99 a month - here's how

'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

This $12 gadget has become a permanent accessory on my keychain - here's why

'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

Your iPhone can be used as a digital drivers' license - but only in these states

'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

The messy reality of SIMD (vector) functions

We’ve discussed SIMD and vectorization extensively on this blog, and it was only a matter of time before SIMD (or vector) functions came up. In this post, we explore what SIMD functions are, when they are useful, and how to declare and use them effectively. A SIMD function is a function that processes more than one piece of data. Take for example a mathematical sin function: double sin(double angle); This function takes one double and returns one double. The vector version that processes four

My favorite Amazon Echo speaker is perfect for small rooms, and it's only $22 with this deal

'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

The ITTAGE indirect branch predictor

While investigating the performance of the new Python 3.14 tail-calling interpreter, I learned (via this very informative comment from Sam Gross) new (to me) piece of performance trivia: Modern CPUs mostly no longer struggle to predict the bytecode-dispatch indirect jump inside a “conventional” bytecode interpreter loop. In steady-state, assuming the bytecode itself is reasonable stable, modern CPUs achieve very high accuracy predicting the dispatch, even for “vanilla” while / switch -style inte

These are the best July 4th laptop deals live now

'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

I'm a phone reviewer, and you don't want to miss these July 4th phone deals

'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

Your Samsung phone has secret Wi-Fi settings that are seriously useful - here's how to unlock them

'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

July 4th sales: The 65+ best deals we've found (and we've tested almost all of them)

'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

My favorite smart scale tracks 16 different measurements and is 50% off -- but hurry

'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

Best July 4th TV deals 2025: My favorite sales save you up to $2,500

'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

Bcachefs may be headed out of the kernel

Bcachefs may be headed out of the kernel The history of the bcachefs filesystem in the kernel has been turbulent, most recently with Linus Torvalds refusing a pull request for the 6.16-rc3 release. Torvalds has now pulled the code in question, but also said: I think we'll be parting ways in the 6.17 merge window. You made it very clear that I can't even question any bug-fixes and I should just pull anything and everything. Honestly, at that point, I don't really feel comfortable being involved

My favorite Dyson vacuum busts dirt and dust with ease, and it's $180 off ahead of Prime Day

'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

The 67+ best July 4th deals live now: Save on outdoor, tech, home and more

'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

I'm a phone expert, and you won't want to miss these July 4th phone deals

'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

Amazon’s Best Portable Monitor Is Nearly 50% Off, Feels Like Prime Day Already Started

Just because you’re a work-from-home employee does not mean you need to be working specifically from home. You can feasibly work from anywhere that has an internet connection if you’d be so inclined. What stops me from getting out more often is that I don’t find myself as productive as when I’m at my desk at home. I’ve built a pretty robust workspace for myself with three large monitors so I can see everything I’m working on at once. When tied to just my laptop screen, I feel restrained. That is

The best printers of 2025: Your home office is about to get so much better

'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

Your iPad is getting a big upgrade for free. 4 top features I can't wait to use on iPadOS 26

'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

Exclusive 4th of July Offer: 1TB to 10TB Lifetime Cloud Storage at a Huge Discount

Cloud storage is only as good as its security, and this service gets it right. With its eye-catching bundle of lifetime storage plus encryption, you only pay once instead of facing monthly fees like with most providers. Right now, you can save up to $1,320 and enjoy up to 10 TB of secure, client-side encrypted storage for life. And that’s just the beginning. This platform is also packed with powerful features designed to protect and simplify your digital life. Claim pCloud Discount Today Save

The Motorola Razr 2025 is over $120 off, but only in this color

Ryan Haines / Android Authority Motorola democratized foldable flip phones. Its base Razr models come with more modest specs, but still offer that exciting form factor, and a great experience. All at a much more reasonable price point. Want to save even more? Check out this deal on the Motorola Razr 2025. Buy the Motorola Razr 2025 in Pantone Spring Bud for just $589.29 ($120.46 off) This offer is available from Amazon. The deal is only available for the Pantone Spring Bud color version. All o

Wind Knitting Factory

Wind Knitting Factory ‘Wind Knitting Factory’ is a wind powered knitting machine that is attached to the facade of a building. The blades embrace more than a meter in diameter, and the wind that is cached by the mill drives the machine. Like that a long scarf gets knitted along the building downward. When it is windy the machine knits fast and with less wind the machine knits slowly. Buy them here Wind Knitting Factory ‘Wind Knitting Factory’ is a wind powered knitting machine that is attache

My favorite USB-C accessory of all time got a magnetic upgrade - and it's only $8 on sale

ZDNET's key takeaways The magnetic USB-C connector now supports a 180-degree swivel, and it's only $12 at Amazon. It can pump out as much as 240W of power. I just wish it was suitable for data transferring or powering monitors. $15.99 at Amazon Buy one of these handy 240W USB-C magnetic adapters on sale for just $8 ahead of Amazon Prime Day with the on-page coupon (you can use the coupon for a 2-pack, too). Also: The 55+ best Prime Day deals we've found so far A hill I'm always willing to f

Provider of covert surveillance app spills passwords for 62,000 users

The maker of a phone app that is advertised as providing a stealthy means for monitoring all activities on an Android device spilled email addresses, plain-text passwords, and other sensitive data belonging to 62,000 users, a researcher discovered recently. A security flaw in the app, branded Catwatchful, allowed researcher Eric Daigle to download a trove of sensitive data, which belonged to account holders who used the covert app to monitor phones. The leak, made possible by a SQL injection vu