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Exploring the Complexity of Distributed Consensus Algorithms in Blockchain

computer.org Laurel Tweed 2026-02-07 10:00:45

Consensus in blockchain isn’t just a technical problem—it’s an intellectual minefield. You’ve got decentralized nodes spread across the globe, each operating under different assumptions, with varying latencies, incentives, and potential motivations, and yet they’re all expected to come to the same conclusion about the state of a distributed ledger. No central authority, no fallback mechanisms, no easy resets. Just code, cryptography, and coordination dancing on the edge of chaos. It’s beautiful

Topics: blockchain consensus finality like network

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Nvidia becomes world's first $4tn company

feeds.bbci.co.uk Unknown 2026-02-07 11:56:18

Nvidia becomes world's first $4tn company Nvidia has become the first company in the world to reach a market value of $4tn. Shares in the chip-maker rose by as much as 2.4% to $164 on Wednesday, as the company continues to benefit from the ongoing surge in demand for the tech that powers artificial intelligence (AI). The US-based company reached a market value of $1tn for the first time in June 2023, and has continued to climb rapidly since. "This is a historical moment for Nvidia", tech ana

Topics: 4tn company market nvidia world

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Get a Hydrow Pro Rower for up to $460 off during Amazon Prime Day

zdnet.com Allison Murray 2026-02-07 11:07:00

'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

Topics: content does editorial reviews zdnet

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My cat loves this automatic wet food feeder, and it's 23% off for Prime Day

zdnet.com Allison Murray 2026-02-07 11:11:00

Allison Murray/ZDNET The Petlibro Polar Wet Food Automatic Feeder is currently $30 off at just $100 during Amazon Prime Day. Also: The best Prime Day deals you can shop now. ZDNET's key takeaways The Petlibro Polar Wet Food Automatic Feeder normally retails for $130 and is available in black and white. The Polar feeder can keep wet food fresh for up to three days and connects to an app to customize feeding schedules. It is a relatively large device and needs power and Wi-Fi to function. A

Topics: device feeder food pet wet

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The world's brightest flashlight is 29% off for Prime Day

zdnet.com Allison Murray 2026-02-07 11:22:00

'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

Topics: content does editorial reviews zdnet

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Prime Day Grubhub deal: Get 50% off a Grubhub order now - here's how

zdnet.com Alison Denisco Rayome 2026-02-07 11:25:40

'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

Topics: content does editorial reviews zdnet

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You can save hundreds on xTool laser engravers for Amazon Prime Day

zdnet.com Adrian Kingsley-Hughes 2026-02-07 11:47:00

'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

Topics: content does editorial reviews zdnet

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13 Best Prime Day Pet Deals on Amazon (2025)

wired.com Molly Higgins 2026-02-07 11:48:41

Amazon Prime Day is arguably the best time of the year to upgrade your pet's setup for way less dough. As the pet tech writer here at WIRED, I have strong opinions about which (often pricey) pet gear is worth the money. From automatic litter boxes to feeders and fountains, and even DNA testing kits and pet cameras, I've pulled together the best Prime Day pet deals on WIRED-tested gear for this event, which runs through July 11. I'll be updating with more deals as I find them, so make sure you're

Topics: automatic box camera litter pet

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PR is your scaling power: Learn from Insight Partners’ Nikki Parker at TechCrunch All Stage

techcrunch.com Techcrunch Events 2026-02-07 11:15:00

PR and marketing are more than just press releases — they’re powerful tools for attracting investors, customers, and top talent. At TechCrunch All Stage on July 15, Nikki Parker, EVP of Marketing and Communications at global software investor Insight Partners, will break down the essential PR and marketing strategies every startup needs. From crafting compelling narratives and positioning your company for growth and fundraising to building a brand that stands out in a crowded market, this round

Topics: communications marketing parker pr stage

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Don't miss these fantastic DJI drone deals during Amazon Prime Day

zdnet.com Adrian Kingsley-Hughes 2026-02-07 16:28:00

'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

Topics: content does editorial reviews zdnet

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Best Prime Day TV deals: My 30+ favorite offers, updated live

zdnet.com Taylor Clemons 2026-02-07 16:52:41

'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

Topics: content does editorial reviews zdnet

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For Day 2 of Prime Day, the Fire HD 10 Tablet is 50% Off and Will Easily Make You Forget the iPad

gizmodo.com Gizmodo Deals 2026-02-07 16:55:59

Every year, Amazon features its own devices front and center for Prime Day, giving a boost to such products as Kindle e-readers, Ring and Blink security cameras, Fire TV Sticks, eero routers, and popular Fire HD tablets. Although the previous generation Fire HD 8 and the just-released Fire HD 11 are on sale, the deepest discount is applied to the Fire HD 10 Tablet which is also the current top-selling tablet on Amazon for this year’s sale. Right now, it is available for just $69, a whopping 50%

Topics: 10 amazon hd offers tablet

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Fantastic Amazon Prime Day deals on hardware-encrypted drives

zdnet.com Adrian Kingsley-Hughes 2026-02-07 21:38:25

'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

Topics: content does editorial reviews zdnet

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Can't quit Windows 10? Here's how to keep getting security updates after October 2025

zdnet.com Ed Bott 2026-02-07 21:50:00

'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

Topics: content does editorial reviews zdnet

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BLUETTI Power Station Is Nearly 60% Off for Prime Day, 17-Year Lifespan Makes It Practically Free Per Year

gizmodo.com Mike Fazioli 2026-02-07 21:10:47

So much for easing into Prime Day — Amazon has apparently decided to open the annual blowout event with some borderline insane deals. Take the Bluetti Solar Generator Elite 200 V2, for instance — a top-rated portable power station that normally sells for $1,700 and is worth every penny even at that price. Today it’s just $700 — Amazon’s 59% Prime Day deal is chopping a cool grand off of the price. Prime Day is usually when you make splurge purchases on fun things you would never dream of paying

Topics: 200 bluetti elite power v2

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Orb Is the Internet Speed Test Your Wi-Fi Has Been Waiting For

cnet.com See Full Bio 2026-02-07 20:00:00

Internet speed tests aren't just for people who obsess over their internet connection. When my friends or parents are experiencing an inevitable home internet slowdown, my first recommendation is always to start with a speed test. In fact, I’ve tested and used dozens of internet speed tests -- the market is pretty saturated with them. Ideally, the best internet speed test is one that diagnoses your bandwidth blues as simply as possible -- no ads, no extra features you can’t make sense of, and no

Topics: connection internet orb speed test

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Sizing up the 5 companies selected for Europe’s launcher challenge

arstechnica.com Unknown 2026-02-07 21:48:59

The European Space Agency has selected five launch startups to become eligible for up to 169 million euros ($198 million) in funding to develop alternatives to Arianespace, the continent's incumbent launch service provider. The five companies ESA selected are Isar Aerospace, MaiaSpace, Rocket Factory Augsburg, PLD Space, and Orbex. Only one of these companies, Isar Aerospace, has attempted to launch a rocket into orbit. Isar's Spectrum rocket failed moments after liftoff from Norway on a test f

Topics: companies esa european launch rocket

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Inside OpenAI’s empire: A conversation with Karen Hao

technologyreview.com The Editors 2026-02-08 05:10:29

And the third feature is that the empires monopolize knowledge production. So, in the last 10 years, we’ve seen the AI industry monopolize more and more of the AI researchers in the world. So AI researchers are no longer contributing to open science, working in universities or independent institutions, and the effect on the research is what you would imagine would happen if most of the climate scientists in the world were being bankrolled by oil and gas companies. You would not be getting a clea

Topics: agi empire evil gets like

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15 discounted gadgets I use regularly as a handyman (and why they make such a big difference)

zdnet.com Adrian Kingsley-Hughes 2026-02-08 06:09:00

'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

Topics: content does editorial reviews zdnet

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Best Prime Day TV deals: My 30+ favorite offers right now, updated live

zdnet.com Taylor Clemons 2026-02-08 08:27:00

'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

Topics: content does editorial reviews zdnet

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Best Dyson Vacuum Cleaners of 2025: I Put the Best-Known Vacuum Brand to the Test

cnet.com See Full Bio 2026-02-07 21:34:00

There are many key factors we look at when helping you decide on a Dyson vacuum. Here are some of the ones we use to weigh scoring. Sarah Tew/CNET Cordless vs. corded Cordless Dyson models (V-series, Gen5) prioritize portability for quick cleanups and multi-level homes but are limited by battery life. Generally, CNET only tests cordless vacuums in our testing lab, but that doesn't mean corded isn't the right choice. Our lab testing shows that most Dyson vacuums we recommend can last between 3

Topics: detect dyson gen5 like models

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I Tried Living Without the Internet for a Day: It Made Me Want to Throw Away My Phone

cnet.com See Full Bio 2026-02-08 05:00:00

I stood on a ridge in the Sandia Mountains near Albuquerque, New Mexico, surrounded by pinyon trees and red-barked pines, listening to the trill of dark-eyed juncos jostling through the underbrush. Amid all this beauty, my phone chimed. And chimed again. And buzzed and beeped. A friend sent an Instagram link. Uber Eats offered a discount deal. Target had a coupon for cleaning products. Someone drove by my Ring doorbell camera. Our lives are so dependent on the internet, the thought of living wi

Topics: alerts day home internet phone

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A Giant Planet and a Small Star Are Shaking Up Conventional Cosmological Theory

wired.com Ritsuko Kawai 2026-02-08 08:00:00

Many of the stars in the Milky Way galaxy are small, dim red dwarfs—stars much smaller than the sun in both size and mass. TOI-6894, located far away from Earth, is one of them. Astronomers previously thought a star like this could not have large planets circulating it, because its mass is only about 20 percent of the sun, meaning its planetary system—generated from materials surrounding the star—would not have contained enough mass to form a giant body like Saturn or Jupiter. But when observi

Topics: mass planet planets star toi

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These Sony headphones are a fan favorite - and nearly 50% off during Prime Day

zdnet.com Nina Raemont 2026-02-08 09:01:12

'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

Topics: content does editorial reviews zdnet

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The Samsung Galaxy Watch Ultra just hit an all-time low price for Prime Day

zdnet.com Matthew Miller 2026-02-08 09:01:16

ZDNET's key takeaways The 47mm Samsung Galaxy Watch Ultra normally retails for $650 on Amazon, although it occasionally goes on sale. It's a stylish-looking smartwatch with a slew of safety features and a long-lasting battery. However, it's only available in a single size (47mm, to be exact), meaning it may not be a good fit for folks with smaller wrists. $398.75 at Amazon At Amazon, the Samsung Galaxy Watch Ultra received a 50% discount for Prime Day -- the lowest price we've seen -- bringin

Topics: galaxy samsung ultra watch zdnet

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I Will Text You the Best Prime Day Deals Directly to Your Phone -- for Free

cnet.com See Full Bio 2026-02-08 09:15:03

Good news, Prime Day deal hunters: I've spent the last decade crawling the internet for the best deals nearly every day, and in that time, I've learned a thing or 12 about Amazon sales and Prime Day deals, including which discounts are genuine savings and which reductions are just a lot of buzz without meaningful cost-cutting. That's why every day -- Prime Day or not -- I hand-pick daily CNET Deals texts to subscribers to deliver irresistible sales straight to your phone, helping you score must-

Topics: cnet day deals prime text

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This preorder offer on the new Nothing Phone 3 is my favorite Prime Day mobile deal

zdnet.com Kayla Solino 2026-02-08 06:38:35

Prakhar Khanna/ZDNET Amazon Prime Day runs from July 8-11, but one of the best mobile offers I've seen is open to all. That's right -- you don't need to be a Prime member to snag these savings, and this smartphone is already under $1,000. The new Nothing Phone 3 just launched this month, and Amazon already has a tempting preorder offer. Also: The best Prime Day tech deals If you preorder the Nothing Phone 3 on Amazon, you can scoop up the 512GB model for $799. That's a $100 discount on the 1

Topics: deals new phone savings zdnet

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At the frontier between two lives–the evolutionary origins of pregnancy

news.ycombinator.com University Of Vienna 2026-02-05 11:17:47

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: Single-cell transcriptomic atlases of six mammalian species spanning the diversification of viviparity. Credit: Nature Ecology & Evolution (2025). DOI: 10.1038/s41559-025-02748-x An international research team led by scientists from the University of Vienna has uncovered new insights into how specialized cell types

Topics: cell cells evolution fetus maternal

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Frame of preference A history of Mac settings, 1984–2004

news.ycombinator.com Marcin Wichary 2026-02-08 06:14:19

Words by Marcin Wichary / Technology by Mihai Parparita at Infinite Mac 8 July 2025 / 8,800 words / 10 emulators Frame of preference A history of Mac settings, 1984–2004 As a designer, I’m meant to dislike settings. As a user, I love them. Every year I celebrate Settings Day: a day when I take a look at the options and toggles in all the apps I use. I do this out of curiosity – what was added since the last time I looked? – but also because I love this way of getting to know software: peeking

Topics: control like mac panel settings

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I'm a mobile gadget expert and these Moft MagSafe accessories are my favorite under $35 Prime Day deals

zdnet.com Kayla Solino 2026-02-08 11:43:55

The Moft Tripod accessory. Kayla Solino/ZDNET Prime Day is here, and while plenty of hefty discounts on expensive tech, my favorite offers to scout during a sale are always on cheaper items. After all, who doesn't like saving even more on an already affordable product? Also: The best Prime Day tech deals That's why when I caught these MagSafe accessories on sale, I knew I had to share them. At ZDNET, I test dozens of MagSafe accessories, from battery packs to wallets, phone cases, tripods, an

Topics: magsafe moft stand tripod zdnet

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Latest Tech News

Exploring the Complexity of Distributed Consensus Algorithms in Blockchain

Nvidia becomes world's first $4tn company

Get a Hydrow Pro Rower for up to $460 off during Amazon Prime Day

My cat loves this automatic wet food feeder, and it's 23% off for Prime Day

The world's brightest flashlight is 29% off for Prime Day

Prime Day Grubhub deal: Get 50% off a Grubhub order now - here's how

You can save hundreds on xTool laser engravers for Amazon Prime Day

13 Best Prime Day Pet Deals on Amazon (2025)

PR is your scaling power: Learn from Insight Partners’ Nikki Parker at TechCrunch All Stage

Don't miss these fantastic DJI drone deals during Amazon Prime Day

Best Prime Day TV deals: My 30+ favorite offers, updated live

For Day 2 of Prime Day, the Fire HD 10 Tablet is 50% Off and Will Easily Make You Forget the iPad

Fantastic Amazon Prime Day deals on hardware-encrypted drives

Can't quit Windows 10? Here's how to keep getting security updates after October 2025

BLUETTI Power Station Is Nearly 60% Off for Prime Day, 17-Year Lifespan Makes It Practically Free Per Year

Orb Is the Internet Speed Test Your Wi-Fi Has Been Waiting For

Sizing up the 5 companies selected for Europe’s launcher challenge

Inside OpenAI’s empire: A conversation with Karen Hao

15 discounted gadgets I use regularly as a handyman (and why they make such a big difference)

Best Prime Day TV deals: My 30+ favorite offers right now, updated live

Best Dyson Vacuum Cleaners of 2025: I Put the Best-Known Vacuum Brand to the Test

I Tried Living Without the Internet for a Day: It Made Me Want to Throw Away My Phone

A Giant Planet and a Small Star Are Shaking Up Conventional Cosmological Theory

These Sony headphones are a fan favorite - and nearly 50% off during Prime Day

The Samsung Galaxy Watch Ultra just hit an all-time low price for Prime Day

I Will Text You the Best Prime Day Deals Directly to Your Phone -- for Free

This preorder offer on the new Nothing Phone 3 is my favorite Prime Day mobile deal

At the frontier between two lives–the evolutionary origins of pregnancy

Frame of preference A history of Mac settings, 1984–2004

I'm a mobile gadget expert and these Moft MagSafe accessories are my favorite under $35 Prime Day deals

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